Instruction stringlengths 45 106 | input_code stringlengths 1 13.7k | output_code stringlengths 1 13.7k |
|---|---|---|
Translate the given Forth code snippet into Java without altering its behavior. | 1 constant maybe
: tnot dup maybe <> if invert then ;
: tand and ;
: tor or ;
: tequiv 2dup and rot tnot rot tnot and or ;
: timply tnot tor ;
: txor tequiv tnot ;
: t. C" TF?" 2 + + c@ emit ;
: table2.
cr ." T F ?"
cr ." --------"
2 true DO
cr I t. ." | "
2 true DO
dup I J rot execute t. ." "
LOOP
LOOP DROP ;
: table1.
2 true DO
CR I t. ." | "
dup I swap execute t.
LOOP DROP ;
CR ." [NOT]" ' tnot table1. CR
CR ." [AND]" ' tand table2. CR
CR ." [OR]" ' tor table2. CR
CR ." [XOR]" ' txor table2. CR
CR ." [IMPLY]" ' timply table2. CR
CR ." [EQUIV]" ' tequiv table2. CR
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Convert this Forth block to Python, preserving its control flow and logic. | 1 constant maybe
: tnot dup maybe <> if invert then ;
: tand and ;
: tor or ;
: tequiv 2dup and rot tnot rot tnot and or ;
: timply tnot tor ;
: txor tequiv tnot ;
: t. C" TF?" 2 + + c@ emit ;
: table2.
cr ." T F ?"
cr ." --------"
2 true DO
cr I t. ." | "
2 true DO
dup I J rot execute t. ." "
LOOP
LOOP DROP ;
: table1.
2 true DO
CR I t. ." | "
dup I swap execute t.
LOOP DROP ;
CR ." [NOT]" ' tnot table1. CR
CR ." [AND]" ' tand table2. CR
CR ." [OR]" ' tor table2. CR
CR ." [XOR]" ' txor table2. CR
CR ." [IMPLY]" ' timply table2. CR
CR ." [EQUIV]" ' tequiv table2. CR
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Write the same algorithm in Go as shown in this Forth implementation. | 1 constant maybe
: tnot dup maybe <> if invert then ;
: tand and ;
: tor or ;
: tequiv 2dup and rot tnot rot tnot and or ;
: timply tnot tor ;
: txor tequiv tnot ;
: t. C" TF?" 2 + + c@ emit ;
: table2.
cr ." T F ?"
cr ." --------"
2 true DO
cr I t. ." | "
2 true DO
dup I J rot execute t. ." "
LOOP
LOOP DROP ;
: table1.
2 true DO
CR I t. ." | "
dup I swap execute t.
LOOP DROP ;
CR ." [NOT]" ' tnot table1. CR
CR ." [AND]" ' tand table2. CR
CR ." [OR]" ' tor table2. CR
CR ." [XOR]" ' txor table2. CR
CR ." [IMPLY]" ' timply table2. CR
CR ." [EQUIV]" ' tequiv table2. CR
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Generate an equivalent C# version of this Fortran code. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Write the same algorithm in C++ as shown in this Fortran implementation. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Ensure the translated C code behaves exactly like the original Fortran snippet. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Convert this Fortran snippet to Java and keep its semantics consistent. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Generate a Python translation of this Fortran snippet without changing its computational steps. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Translate the given Fortran code snippet into PHP without altering its behavior. |
module trit
real, parameter :: true = 1, false = 0, maybe = 0.5
contains
real function tnot(y)
real, intent(in) :: y
tnot = 1 - y
end function tnot
real function tand(x, y)
real, intent(in) :: x, y
tand = min(x, y)
end function tand
real function tor(x, y)
real, intent(in) :: x, y
tor = max(x, y)
end function tor
real function tif(x, y)
real, intent(in) :: x, y
tif = tor(y, tnot(x))
end function tif
real function teq(x, y)
real, intent(in) :: x, y
teq = tor(tand(tnot(x), tnot(y)), tand(x, y))
end function teq
end module trit
program ternaryLogic
use trit
integer :: i
real, dimension(3) :: a = [false, maybe, true]
write(6,'(/a)')'ternary not' ; write(6, '(3f4.1/)') (tnot(a(i)), i = 1 , 3)
write(6,'(/a)')'ternary and' ; call table(tand, a, a)
write(6,'(/a)')'ternary or' ; call table(tor, a, a)
write(6,'(/a)')'ternary if' ; call table(tif, a, a)
write(6,'(/a)')'ternary eq' ; call table(teq, a, a)
contains
subroutine table(u, x, y)
real, external :: u
real, dimension(3), intent(in) :: x, y
integer :: i, j
write(6, '(3(3f4.1/))') ((u(x(i), y(j)), j=1,3), i=1,3)
end subroutine table
end program ternaryLogic
| #!/usr/bin/php
<?php
# defined as numbers, so I can use max() and min() on it
if (! define('triFalse',0)) trigger_error('Unknown error defining!', E_USER_ERROR);
if (! define('triMaybe',1)) trigger_error('Unknown error defining!', E_USER_ERROR);
if (! define('triTrue', 2)) trigger_error('Unknown error defining!', E_USER_ERROR);
$triNotarray = array(triFalse=>triTrue, triMaybe=>triMaybe, triTrue=>triFalse);
# output helper
function triString ($tri) {
if ($tri===triFalse) return 'false ';
if ($tri===triMaybe) return 'unknown';
if ($tri===triTrue) return 'true ';
trigger_error('triString: parameter not a tri value', E_USER_ERROR);
}
function triAnd() {
if (func_num_args() < 2)
trigger_error('triAnd needs 2 or more parameters', E_USER_ERROR);
return min(func_get_args());
}
function triOr() {
if (func_num_args() < 2)
trigger_error('triOr needs 2 or more parameters', E_USER_ERROR);
return max(func_get_args());
}
function triNot($t) {
global $triNotarray; # using result table
if (in_array($t, $triNotarray)) return $triNotarray[$t];
trigger_error('triNot: Parameter is not a tri value', E_USER_ERROR);
}
function triImplies($a, $b) {
if ($a===triFalse || $b===triTrue) return triTrue;
if ($a===triMaybe || $b===triMaybe) return triMaybe;
# without parameter type check I just would return triFalse here
if ($a===triTrue && $b===triFalse) return triFalse;
trigger_error('triImplies: parameter type error', E_USER_ERROR);
}
function triEquiv($a, $b) {
if ($a===triTrue) return $b;
if ($a===triMaybe) return $a;
if ($a===triFalse) return triNot($b);
trigger_error('triEquiv: parameter type error', E_USER_ERROR);
}
# data sampling
printf("--- Sample output for a equivalent b ---\n\n");
foreach ([triTrue,triMaybe,triFalse] as $a) {
foreach ([triTrue,triMaybe,triFalse] as $b) {
printf("for a=%s and b=%s a equivalent b is %s\n",
triString($a), triString($b), triString(triEquiv($a, $b)));
}
}
|
Please provide an equivalent version of this Groovy code in C. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Rewrite this program in C# while keeping its functionality equivalent to the Groovy version. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Convert this Groovy snippet to C++ and keep its semantics consistent. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Convert this Groovy snippet to Java and keep its semantics consistent. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Preserve the algorithm and functionality while converting the code from Groovy to Python. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Write a version of this Groovy function in Go with identical behavior. | enum Trit {
TRUE, MAYBE, FALSE
private Trit nand(Trit that) {
switch ([this,that]) {
case { FALSE in it }: return TRUE
case { MAYBE in it }: return MAYBE
default : return FALSE
}
}
private Trit nor(Trit that) { this.or(that).not() }
Trit and(Trit that) { this.nand(that).not() }
Trit or(Trit that) { this.not().nand(that.not()) }
Trit not() { this.nand(this) }
Trit imply(Trit that) { this.nand(that.not()) }
Trit equiv(Trit that) { this.and(that).or(this.nor(that)) }
}
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Rewrite this program in C while keeping its functionality equivalent to the Haskell version. | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Can you help me rewrite this code in C# instead of Haskell, keeping it the same logically? | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Rewrite the snippet below in C++ so it works the same as the original Haskell code. | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Keep all operations the same but rewrite the snippet in Java. | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Maintain the same structure and functionality when rewriting this code in Python. | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Generate an equivalent Go version of this Haskell code. | import Prelude hiding (Bool(..), not, (&&), (||), (==))
main = mapM_ (putStrLn . unlines . map unwords)
[ table "not" $ unary not
, table "and" $ binary (&&)
, table "or" $ binary (||)
, table "implies" $ binary (=->)
, table "equals" $ binary (==)
]
data Trit = False | Maybe | True deriving (Show)
False `nand` _ = True
_ `nand` False = True
True `nand` True = False
_ `nand` _ = Maybe
not a = nand a a
a && b = not $ a `nand` b
a || b = not a `nand` not b
a =-> b = a `nand` not b
a == b = (a && b) || (not a && not b)
inputs1 = [True, Maybe, False]
inputs2 = [(a,b) | a <- inputs1, b <- inputs1]
unary f = map (\a -> [a, f a]) inputs1
binary f = map (\(a,b) -> [a, b, f a b]) inputs2
table name xs = map (map pad) . (header :) $ map (map show) xs
where header = map (:[]) (take ((length $ head xs) - 1) ['A'..]) ++ [name]
pad s = s ++ replicate (5 - length s) ' '
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Translate the given Icon code snippet into C without altering its behavior. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Translate the given Icon code snippet into C# without altering its behavior. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Transform the following Icon implementation into C++, maintaining the same output and logic. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Write the same code in Java as shown below in Icon. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Preserve the algorithm and functionality while converting the code from Icon to Python. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Produce a functionally identical Go code for the snippet given in Icon. | $define TRUE 1
$define FALSE -1
$define UNKNOWN 0
invocable all
link printf
procedure main()
ufunc := ["not3"]
bfunc := ["and3", "or3", "xor3", "eq3", "ifthen3"]
every f := !ufunc do {
printf("\nunary function=%s:\n",f)
every t1 := (TRUE | FALSE | UNKNOWN) do
printf(" %s : %s\n",showtrit(t1),showtrit(not3(t1)))
}
every f := !bfunc do {
printf("\nbinary function=%s:\n ",f)
every t1 := (&null | TRUE | FALSE | UNKNOWN) do {
printf(" %s : ",showtrit(\t1))
every t2 := (TRUE | FALSE | UNKNOWN | &null) do {
if /t1 then printf(" %s",showtrit(\t2)|"\n")
else printf(" %s",showtrit(f(t1,\t2))|"\n")
}
}
}
end
procedure showtrit(a)
return case a of {TRUE:"T";FALSE:"F";UNKNOWN:"?";default:runerr(205,a)}
end
procedure istrit(a)
return (TRUE|FALSE|UNKNOWN|runerr(205,a)) = a
end
procedure not3(a)
return FALSE * istrit(a)
end
procedure and3(a,b)
return min(istrit(a),istrit(b))
end
procedure or3(a,b)
return max(istrit(a),istrit(b))
end
procedure eq3(a,b)
return istrit(a) * istrit(b)
end
procedure ifthen3(a,b)
return case istrit(a) of { TRUE: istrit(b) ; UNKNOWN: or3(a,b); FALSE: TRUE }
end
procedure xor3(a,b)
return not3(eq3(a,b))
end
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Write a version of this J function in C with identical behavior. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Change the following J code into C# without altering its purpose. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Convert this J block to C++, preserving its control flow and logic. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Maintain the same structure and functionality when rewriting this code in Java. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Produce a functionally identical Python code for the snippet given in J. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Ensure the translated Go code behaves exactly like the original J snippet. | not=: -.
and=: <.
or =: >.
if =: (>. -.)"0~
eq =: (<.&-. >. <.)"0
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Produce a functionally identical C code for the snippet given in Julia. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Write the same code in C# as shown below in Julia. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Translate the given Julia code snippet into C++ without altering its behavior. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Rewrite this program in Java while keeping its functionality equivalent to the Julia version. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Port the provided Julia code into Python while preserving the original functionality. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Convert this Julia block to Go, preserving its control flow and logic. | @enum Trit False Maybe True
const trits = (False, Maybe, True)
Base.:!(a::Trit) = a == False ? True : a == Maybe ? Maybe : False
∧(a::Trit, b::Trit) = a == b == True ? True : (a, b) ∋ False ? False : Maybe
∨(a::Trit, b::Trit) = a == b == False ? False : (a, b) ∋ True ? True : Maybe
⊃(a::Trit, b::Trit) = a == False || b == True ? True : (a, b) ∋ Maybe ? Maybe : False
≡(a::Trit, b::Trit) = (a, b) ∋ Maybe ? Maybe : a == b ? True : False
println("Not (!):")
println(join(@sprintf("%10s%s is %5s", "!", t, !t) for t in trits))
println("And (∧):")
for a in trits
println(join(@sprintf("%10s ∧ %5s is %5s", a, b, a ∧ b) for b in trits))
end
println("Or (∨):")
for a in trits
println(join(@sprintf("%10s ∨ %5s is %5s", a, b, a ∨ b) for b in trits))
end
println("If Then (⊃):")
for a in trits
println(join(@sprintf("%10s ⊃ %5s is %5s", a, b, a ⊃ b) for b in trits))
end
println("Equivalent (≡):")
for a in trits
println(join(@sprintf("%10s ≡ %5s is %5s", a, b, a ≡ b) for b in trits))
end
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Port the following code from Mathematica to C with equivalent syntax and logic. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Ensure the translated C# code behaves exactly like the original Mathematica snippet. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Rewrite this program in C++ while keeping its functionality equivalent to the Mathematica version. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Write the same algorithm in Java as shown in this Mathematica implementation. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Convert this Mathematica snippet to Python and keep its semantics consistent. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Rewrite the snippet below in Go so it works the same as the original Mathematica code. | Maybe /: ! Maybe = Maybe;
Maybe /: (And | Or | Nand | Nor | Xor | Xnor | Implies | Equivalent)[Maybe, Maybe] = Maybe;
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Convert this Nim snippet to C and keep its semantics consistent. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Maintain the same structure and functionality when rewriting this code in C#. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Write the same algorithm in C++ as shown in this Nim implementation. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Change the programming language of this snippet from Nim to Java without modifying what it does. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Translate this program into Python but keep the logic exactly as in Nim. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Port the following code from Nim to Go with equivalent syntax and logic. | type Trit* = enum ttrue, tmaybe, tfalse
proc `$`*(a: Trit): string =
case a
of ttrue: "T"
of tmaybe: "?"
of tfalse: "F"
proc `not`*(a: Trit): Trit =
case a
of ttrue: tfalse
of tmaybe: tmaybe
of tfalse: ttrue
proc `and`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tfalse]
, [tfalse, tfalse, tfalse] ]
t[a][b]
proc `or`*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, ttrue, ttrue]
, [ttrue, tmaybe, tmaybe]
, [ttrue, tmaybe, tfalse] ]
t[a][b]
proc then*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [ttrue, tmaybe, tmaybe]
, [ttrue, ttrue, ttrue] ]
t[a][b]
proc equiv*(a, b: Trit): Trit =
const t: array[Trit, array[Trit, Trit]] =
[ [ttrue, tmaybe, tfalse]
, [tmaybe, tmaybe, tmaybe]
, [tfalse, tmaybe, ttrue] ]
t[a][b]
when isMainModule:
import strutils
for t in Trit:
echo "Not ", t , ": ", not t
for op1 in Trit:
for op2 in Trit:
echo "$
echo "$
echo "$
echo "$
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Convert the following code from OCaml to C, ensuring the logic remains intact. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Translate this program into C# but keep the logic exactly as in OCaml. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Write a version of this OCaml function in C++ with identical behavior. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Keep all operations the same but rewrite the snippet in Java. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Keep all operations the same but rewrite the snippet in Python. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Convert the following code from OCaml to Go, ensuring the logic remains intact. | type trit = True | False | Maybe
let t_not = function
| True -> False
| False -> True
| Maybe -> Maybe
let t_and a b = match (a,b) with
| (True,True) -> True
| (False,_) | (_,False) -> False
| _ -> Maybe
let t_or a b = t_not (t_and (t_not a) (t_not b))
let t_eq a b = match (a,b) with
| (True,True) | (False,False) -> True
| (False,True) | (True,False) -> False
| _ -> Maybe
let t_imply a b = t_or (t_not a) b
let string_of_trit = function
| True -> "True"
| False -> "False"
| Maybe -> "Maybe"
let () =
let values = [| True; Maybe; False |] in
let f = string_of_trit in
Array.iter (fun v -> Printf.printf "Not %s: %s\n" (f v) (f (t_not v))) values;
print_newline ();
let print op str =
Array.iter (fun a ->
Array.iter (fun b ->
Printf.printf "%s %s %s: %s\n" (f a) str (f b) (f (op a b))
) values
) values;
print_newline ()
in
print t_and "And";
print t_or "Or";
print t_imply "Then";
print t_eq "Equiv";
;;
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Preserve the algorithm and functionality while converting the code from Pascal to C. |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Can you help me rewrite this code in C# instead of Pascal, keeping it the same logically? |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Rewrite this program in C++ while keeping its functionality equivalent to the Pascal version. |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Generate a Java translation of this Pascal snippet without changing its computational steps. |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Convert this Pascal snippet to Python and keep its semantics consistent. |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Change the following Pascal code into Go without altering its purpose. |
unit ternarylogic;
interface
type
trit = (tFalse=-1, tMaybe=0, tTrue=1);
operator * (const a,b:trit):trit;
operator and (const a,b:trit):trit;inline;
operator or (const a,b:trit):trit;inline;
operator not (const a:trit):trit;inline;
operator xor (const a,b:trit):trit;
operator >< (const a,b:trit):trit;
implementation
operator and (const a,b:trit):trit;inline;
const lookupAnd:array[trit,trit] of trit =
((tFalse,tFalse,tFalse),
(tFalse,tMaybe,tMaybe),
(tFalse,tMaybe,tTrue));
begin
Result:= LookupAnd[a,b];
end;
operator or (const a,b:trit):trit;inline;
const lookupOr:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tTrue),
(tTrue,tTrue,tTrue));
begin
Result := LookUpOr[a,b];
end;
operator not (const a:trit):trit;inline;
const LookupNot:array[trit] of trit =(tTrue,tMaybe,tFalse);
begin
Result:= LookUpNot[a];
end;
operator xor (const a,b:trit):trit;
const LookupXor:array[trit,trit] of trit =
((tFalse,tMaybe,tTrue),
(tMaybe,tMaybe,tMaybe),
(tTrue,tMaybe,tFalse));
begin
Result := LookupXor[a,b];
end;
operator * (const a,b:trit):trit;
begin
result := not (a xor b);
end;
operator >< (const a,b:trit):trit;
begin
result := not(a) or b;
end;
end.
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Ensure the translated C code behaves exactly like the original Perl snippet. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Rewrite this program in C# while keeping its functionality equivalent to the Perl version. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Translate this program into C++ but keep the logic exactly as in Perl. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Generate an equivalent Java version of this Perl code. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Translate the given Perl code snippet into Python without altering its behavior. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Produce a language-to-language conversion: from Perl to Go, same semantics. | use v5.36;
package Trit;
use List::Util qw(min max);
our @ISA = qw(Exporter);
our @EXPORT = qw(%E);
my %E = (true => 1, false => -1, maybe => 0);
use overload
'<=>' => sub ($a,$b) { $a->cmp($b) },
'cmp' => sub ($a,$b) { $a->cmp($b) },
'==' => sub ($a,$b,$) { $$a == $$b },
'eq' => sub ($a,$b,$) { $a->equiv($b) },
'>' => sub ($a,$b,$) { $$a > $E{$b} },
'<' => sub ($a,$b,$) { $$a < $E{$b} },
'>=' => sub ($a,$b,$) { $$a >= $$b },
'<=' => sub ($a,$b,$) { $$a <= $$b },
'|' => sub ($a,$b,$,$,$) { $a->or($b) },
'&' => sub ($a,$b,$,$,$) { $a->and($b) },
'!' => sub ($a,$,$) { $a->not() },
'~' => sub ($a,$,$,$,$) { $a->not() },
'neg' => sub ($a,$,$) { -$$a },
'""' => sub ($a,$,$) { $a->tostr() },
'0+' => sub ($a,$,$) { $a->tonum() },
;
sub eqv ($a,$b) {
$$a == $E{maybe} || $E{$b} == $E{maybe} ? $E{maybe} :
$$a == $E{false} && $E{$b} == $E{false} ? $E{true} :
min $$a, $E{$b}
}
sub new ($class, $v) {
my $value =
! defined $v ? $E{maybe} :
$v =~ /true/ ? $E{true} :
$v =~ /false/ ? $E{false} :
$v =~ /maybe/ ? $E{maybe} :
$v gt $E{maybe} ? $E{true} :
$v lt $E{maybe} ? $E{false} :
$E{maybe} ;
bless \$value, $class;
}
sub tostr ($a) { $$a > $E{maybe} ? 'true' : $$a < $E{maybe} ? 'false' : 'maybe' }
sub tonum ($a) { $$a }
sub not ($a) { Trit->new( -$a ) }
sub cmp ($a,$b) { Trit->new( $a <=> $b ) }
sub and ($a,$b) { Trit->new( min $a, $b ) }
sub or ($a,$b) { Trit->new( max $a, $b ) }
sub equiv ($a,$b) { Trit->new( eqv $a, $b ) }
package main;
Trit->import;
my @a = ( Trit->new($E{true}), Trit->new($E{maybe}), Trit->new($E{false}) );
printf "Codes for logic values: %6s = %d %6s = %d %6s = %d\n", @a[0, 0, 1, 1, 2, 2];
say "\na\tNOT a";
print "$_\t".(!$_)."\n" for @a;
say "\nAND\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a & $_) for @a; say '' }
say "\nOR\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a | $_) for @a; say '' }
say "\nEQV\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a eq $_) for @a; say '' }
say "\n==\t" . join("\t",@a);
for my $a (@a) { print $a; print "\t" . ($a == $_) for @a; say '' }
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Preserve the algorithm and functionality while converting the code from Racket to C. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Write the same algorithm in C# as shown in this Racket implementation. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Write a version of this Racket function in C++ with identical behavior. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Write a version of this Racket function in Java with identical behavior. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Write a version of this Racket function in Python with identical behavior. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Please provide an equivalent version of this Racket code in Go. | #lang typed/racket
(define-type trit (U 'true 'false 'maybe))
(: not (trit -> trit))
(define (not a)
(case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true]))
(: and (trit trit -> trit))
(define (and a b)
(case a
[(false) 'false]
[(maybe) (case b
[(false) 'false]
[else 'maybe])]
[(true) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: or (trit trit -> trit))
(define (or a b)
(case a
[(true) 'true]
[(maybe) (case b
[(true) 'true]
[else 'maybe])]
[(false) (case b
[(true) 'true]
[(maybe) 'maybe]
[(false) 'false])]))
(: ifthen (trit trit -> trit))
(define (ifthen a b)
(case b
[(true) 'true]
[(maybe) (case a
[(false) 'true]
[else 'maybe])]
[(false) (case a
[(true) 'false]
[(maybe) 'maybe]
[(false) 'true])]))
(: iff (trit trit -> trit))
(define (iff a b)
(case a
[(maybe) 'maybe]
[(true) b]
[(false) (not b)]))
(for: : Void ([a (in-list '(true maybe false))])
(printf "~a ~a = ~a~n" (object-name not) a (not a)))
(for: : Void ([proc (in-list (list and or ifthen iff))])
(for*: : Void ([a (in-list '(true maybe false))]
[b (in-list '(true maybe false))])
(printf "~a ~a ~a = ~a~n" a (object-name proc) b (proc a b))))
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Produce a functionally identical C code for the snippet given in REXX. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Convert this REXX block to C#, preserving its control flow and logic. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Produce a language-to-language conversion: from REXX to C++, same semantics. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Port the provided REXX code into Java while preserving the original functionality. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Please provide an equivalent version of this REXX code in Python. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Convert the following code from REXX to Go, ensuring the logic remains intact. | tritValues = .array~of(.trit~true, .trit~false, .trit~maybe)
tab = '09'x
say "not operation (\)"
loop a over tritValues
say "\"a":" (\a)
end
say
say "and operation (&)"
loop aa over tritValues
loop bb over tritValues
say (aa" & "bb":" (aa&bb))
end
end
say
say "or operation (|)"
loop aa over tritValues
loop bb over tritValues
say (aa" | "bb":" (aa|bb))
end
end
say
say "implies operation (&&)"
loop aa over tritValues
loop bb over tritValues
say (aa" && "bb":" (aa&&bb))
end
end
say
say "equals operation (=)"
loop aa over tritValues
loop bb over tritValues
say (aa" = "bb":" (aa=bb))
end
end
::class trit
-- making this a private method so we can control the creation
-- of these. We only allow 3 instances to exist
::method new class private
forward class(super)
::method init class
expose true false maybe
-- delayed creation
true = .nil
false = .nil
maybe = .nil
-- read only attribute access to the instances.
-- these methods create the appropriate singleton on the first call
::attribute true class get
expose true
if true == .nil then true = self~new("True")
return true
::attribute false class get
expose false
if false == .nil then false = self~new("False")
return false
::attribute maybe class get
expose maybe
if maybe == .nil then maybe = self~new("Maybe")
return maybe
-- create an instance
::method init
expose value
use arg value
-- string method to return the value of the instance
::method string
expose value
return value
-- "and" method using the operator overload
::method "&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~false then return .trit~false
else return .trit~maybe
end
else return .trit~false
-- "or" method using the operator overload
::method "|"
use strict arg other
if self == .trit~true then return .trit~true
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return other
-- implies method...using the XOR operator for this
::method "&&"
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then do
if other == .trit~true then return .trit~true
else return .trit~maybe
end
else return .trit~true
-- "not" method using the operator overload
::method "\"
if self == .trit~true then return .trit~false
else if self == .trit~maybe then return .trit~maybe
else return .trit~true
-- "equals" using the "=" override. This makes a distinction between
-- the "==" operator, which is real equality and the "=" operator, which
-- is trinary equality.
::method "="
use strict arg other
if self == .trit~true then return other
else if self == .trit~maybe then return .trit~maybe
else return \other
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Generate a C translation of this Ruby snippet without changing its computational steps. |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Transform the following Ruby implementation into C#, maintaining the same output and logic. |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Can you help me rewrite this code in C++ instead of Ruby, keeping it the same logically? |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Change the following Ruby code into Java without altering its purpose. |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Generate an equivalent Python version of this Ruby code. |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Convert this Ruby block to Go, preserving its control flow and logic. |
require 'singleton'
class MaybeClass
include Singleton
def to_s; "maybe"; end
end
MAYBE = MaybeClass.instance
class TrueClass
TritMagic = Object.new
class << TritMagic
def index; 0; end
def !; false; end
def & other; other; end
def | other; true; end
def ^ other; [false, MAYBE, true][other.trit.index]; end
def == other; other; end
end
def trit; TritMagic; end
end
class MaybeClass
TritMagic = Object.new
class << TritMagic
def index; 1; end
def !; MAYBE; end
def & other; [MAYBE, MAYBE, false][other.trit.index]; end
def | other; [true, MAYBE, MAYBE][other.trit.index]; end
def ^ other; MAYBE; end
def == other; MAYBE; end
end
def trit; TritMagic; end
end
class FalseClass
TritMagic = Object.new
class << TritMagic
def index; 2; end
def !; true; end
def & other; false; end
def | other; other; end
def ^ other; other; end
def == other; [false, MAYBE, true][other.trit.index]; end
end
def trit; TritMagic; end
end
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Write the same algorithm in C as shown in this Scala implementation. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Produce a language-to-language conversion: from Scala to C#, same semantics. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Change the following Scala code into C++ without altering its purpose. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Produce a language-to-language conversion: from Scala to Java, same semantics. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Write the same algorithm in Python as shown in this Scala implementation. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Rewrite the snippet below in Go so it works the same as the original Scala code. |
enum class Trit {
TRUE, MAYBE, FALSE;
operator fun not() = when (this) {
TRUE -> FALSE
MAYBE -> MAYBE
FALSE -> TRUE
}
infix fun and(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == FALSE) FALSE else MAYBE
FALSE -> FALSE
}
infix fun or(other: Trit) = when (this) {
TRUE -> TRUE
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> other
}
infix fun imp(other: Trit) = when (this) {
TRUE -> other
MAYBE -> if (other == TRUE) TRUE else MAYBE
FALSE -> TRUE
}
infix fun eqv(other: Trit) = when (this) {
TRUE -> other
MAYBE -> MAYBE
FALSE -> !other
}
override fun toString() = this.name[0].toString()
}
fun main(args: Array<String>) {
val ta = arrayOf(Trit.TRUE, Trit.MAYBE, Trit.FALSE)
println("not")
println("-------")
for (t in ta) println(" $t | ${!t}")
println()
println("and | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t and tt} ")
println()
}
println()
println("or | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t or tt} ")
println()
}
println()
println("imp | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t imp tt} ")
println()
}
println()
println("eqv | T M F")
println("-------------")
for (t in ta) {
print(" $t | ")
for (tt in ta) print("${t eqv tt} ")
println()
}
}
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Rewrite this program in C while keeping its functionality equivalent to the Tcl version. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| #include <stdio.h>
typedef enum {
TRITTRUE,
TRITMAYBE,
TRITFALSE
} trit;
trit tritNot[3] = {TRITFALSE , TRITMAYBE, TRITTRUE};
trit tritAnd[3][3] = { {TRITTRUE, TRITMAYBE, TRITFALSE},
{TRITMAYBE, TRITMAYBE, TRITFALSE},
{TRITFALSE, TRITFALSE, TRITFALSE} };
trit tritOr[3][3] = { {TRITTRUE, TRITTRUE, TRITTRUE},
{TRITTRUE, TRITMAYBE, TRITMAYBE},
{TRITTRUE, TRITMAYBE, TRITFALSE} };
trit tritThen[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITTRUE, TRITMAYBE, TRITMAYBE},
{ TRITTRUE, TRITTRUE, TRITTRUE } };
trit tritEquiv[3][3] = { { TRITTRUE, TRITMAYBE, TRITFALSE},
{ TRITMAYBE, TRITMAYBE, TRITMAYBE},
{ TRITFALSE, TRITMAYBE, TRITTRUE } };
const char* tritString[3] = {"T", "?", "F"};
void demo_binary_op(trit operator[3][3], const char* name)
{
trit operand1 = TRITTRUE;
trit operand2 = TRITTRUE;
printf("\n");
for( operand1 = TRITTRUE; operand1 <= TRITFALSE; ++operand1 )
{
for( operand2 = TRITTRUE; operand2 <= TRITFALSE; ++operand2 )
{
printf("%s %s %s: %s\n", tritString[operand1],
name,
tritString[operand2],
tritString[operator[operand1][operand2]]);
}
}
}
int main()
{
trit op1 = TRITTRUE;
trit op2 = TRITTRUE;
for( op1 = TRITTRUE; op1 <= TRITFALSE; ++op1 )
{
printf("Not %s: %s\n", tritString[op1], tritString[tritNot[op1]]);
}
demo_binary_op(tritAnd, "And");
demo_binary_op(tritOr, "Or");
demo_binary_op(tritThen, "Then");
demo_binary_op(tritEquiv, "Equiv");
return 0;
}
|
Produce a functionally identical C# code for the snippet given in Tcl. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| using System;
public static class NullableBoolExtension
{
public static bool? Implies(this bool? left, bool? right)
{
return !left | right;
}
public static bool? IsEquivalentTo(this bool? left, bool? right)
{
return left.HasValue && right.HasValue ? left == right : default(bool?);
}
public static string Format(this bool? value)
{
return value.HasValue ? value.Value.ToString() : "Maybe";
}
}
public class Program
{
private static void Main()
{
var values = new[] { true, default(bool?), false };
foreach (var left in values)
{
Console.WriteLine("¬{0} = {1}", left.Format(), (!left).Format());
foreach (var right in values)
{
Console.WriteLine("{0} & {1} = {2}", left.Format(), right.Format(), (left & right).Format());
Console.WriteLine("{0} | {1} = {2}", left.Format(), right.Format(), (left | right).Format());
Console.WriteLine("{0} → {1} = {2}", left.Format(), right.Format(), left.Implies(right).Format());
Console.WriteLine("{0} ≡ {1} = {2}", left.Format(), right.Format(), left.IsEquivalentTo(right).Format());
}
}
}
}
|
Please provide an equivalent version of this Tcl code in C++. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| #include <iostream>
#include <stdlib.h>
class trit {
public:
static const trit False, Maybe, True;
trit operator !() const {
return static_cast<Value>(-value);
}
trit operator &&(const trit &b) const {
return (value < b.value) ? value : b.value;
}
trit operator ||(const trit &b) const {
return (value > b.value) ? value : b.value;
}
trit operator >>(const trit &b) const {
return -value > b.value ? static_cast<Value>(-value) : b.value;
}
trit operator ==(const trit &b) const {
return static_cast<Value>(value * b.value);
}
char chr() const {
return "F?T"[value + 1];
}
protected:
typedef enum { FALSE=-1, MAYBE, TRUE } Value;
Value value;
trit(const Value value) : value(value) { }
};
std::ostream& operator<<(std::ostream &os, const trit &t)
{
os << t.chr();
return os;
}
const trit trit::False = trit(trit::FALSE);
const trit trit::Maybe = trit(trit::MAYBE);
const trit trit::True = trit(trit::TRUE);
int main(int, char**) {
const trit trits[3] = { trit::True, trit::Maybe, trit::False };
#define for_each(name) \
for (size_t name=0; name<3; ++name)
#define show_op(op) \
std::cout << std::endl << #op << " "; \
for_each(a) std::cout << ' ' << trits[a]; \
std::cout << std::endl << " -------"; \
for_each(a) { \
std::cout << std::endl << trits[a] << " |"; \
for_each(b) std::cout << ' ' << (trits[a] op trits[b]); \
} \
std::cout << std::endl;
std::cout << "! ----" << std::endl;
for_each(a) std::cout << trits[a] << " | " << !trits[a] << std::endl;
show_op(&&);
show_op(||);
show_op(>>);
show_op(==);
return EXIT_SUCCESS;
}
|
Convert this Tcl block to Java, preserving its control flow and logic. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| public class Logic{
public static enum Trit{
TRUE, MAYBE, FALSE;
public Trit and(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == FALSE) ? FALSE : MAYBE;
}else{
return FALSE;
}
}
public Trit or(Trit other){
if(this == TRUE){
return TRUE;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return other;
}
}
public Trit tIf(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return (other == TRUE) ? TRUE : MAYBE;
}else{
return TRUE;
}
}
public Trit not(){
if(this == TRUE){
return FALSE;
}else if(this == MAYBE){
return MAYBE;
}else{
return TRUE;
}
}
public Trit equals(Trit other){
if(this == TRUE){
return other;
}else if(this == MAYBE){
return MAYBE;
}else{
return other.not();
}
}
}
public static void main(String[] args){
for(Trit a:Trit.values()){
System.out.println("not " + a + ": " + a.not());
}
for(Trit a:Trit.values()){
for(Trit b:Trit.values()){
System.out.println(a+" and "+b+": "+a.and(b)+
"\t "+a+" or "+b+": "+a.or(b)+
"\t "+a+" implies "+b+": "+a.tIf(b)+
"\t "+a+" = "+b+": "+a.equals(b));
}
}
}
}
|
Write a version of this Tcl function in Python with identical behavior. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| class Trit(int):
def __new__(cls, value):
if value == 'TRUE':
value = 1
elif value == 'FALSE':
value = 0
elif value == 'MAYBE':
value = -1
return super(Trit, cls).__new__(cls, value // (abs(value) or 1))
def __repr__(self):
if self > 0:
return 'TRUE'
elif self == 0:
return 'FALSE'
return 'MAYBE'
def __str__(self):
return repr(self)
def __bool__(self):
if self > 0:
return True
elif self == 0:
return False
else:
raise ValueError("invalid literal for bool(): '%s'" % self)
def __or__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __ror__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][1]
else:
try:
return _ttable[(self, Trit(bool(other)))][1]
except:
return NotImplemented
def __and__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __rand__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][0]
else:
try:
return _ttable[(self, Trit(bool(other)))][0]
except:
return NotImplemented
def __xor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __rxor__(self, other):
if isinstance(other, Trit):
return _ttable[(self, other)][2]
else:
try:
return _ttable[(self, Trit(bool(other)))][2]
except:
return NotImplemented
def __invert__(self):
return _ttable[self]
def __getattr__(self, name):
if name in ('_n', 'flip'):
return _ttable[self]
else:
raise AttributeError
TRUE, FALSE, MAYBE = Trit(1), Trit(0), Trit(-1)
_ttable = {
TRUE: FALSE,
FALSE: TRUE,
MAYBE: MAYBE,
(MAYBE, MAYBE): (MAYBE, MAYBE, MAYBE),
(MAYBE, FALSE): (FALSE, MAYBE, MAYBE),
(MAYBE, TRUE): (MAYBE, TRUE, MAYBE),
(FALSE, MAYBE): (FALSE, MAYBE, MAYBE),
(FALSE, FALSE): (FALSE, FALSE, FALSE),
(FALSE, TRUE): (FALSE, TRUE, TRUE),
( TRUE, MAYBE): (MAYBE, TRUE, MAYBE),
( TRUE, FALSE): (FALSE, TRUE, TRUE),
( TRUE, TRUE): ( TRUE, TRUE, FALSE),
}
values = ('FALSE', 'TRUE ', 'MAYBE')
print("\nTrit logical inverse, '~'")
for a in values:
expr = '~%s' % a
print(' %s = %s' % (expr, eval(expr)))
for op, ophelp in (('&', 'and'), ('|', 'or'), ('^', 'exclusive-or')):
print("\nTrit logical %s, '%s'" % (ophelp, op))
for a in values:
for b in values:
expr = '%s %s %s' % (a, op, b)
print(' %s = %s' % (expr, eval(expr)))
|
Change the programming language of this snippet from Tcl to Go without modifying what it does. | package require Tcl 8.5
namespace eval ternary {
proc maketable {name count values} {
set sep ""
for {set i 0; set c 97} {$i<$count} {incr i;incr c} {
set v [format "%c" $c]
lappend args $v; append key $sep "$" $v
set sep ","
}
foreach row [split $values \n] {
if {[llength $row]>1} {
lassign $row from to
lappend table $from [list return $to]
}
}
proc $name $args \
[list ckargs $args]\;[concat [list switch -glob --] $key [list $table]]
namespace export $name
}
proc ckargs argList {
foreach var $argList {
upvar 1 $var v
switch -exact -- $v {
true - maybe - false {
continue
}
default {
return -level 2 -code error "bad ternary value \"$v\""
}
}
}
}
maketable not 1 {
true false
maybe maybe
false true
}
maketable and 2 {
true,true true
false,* false
*,false false
* maybe
}
maketable or 2 {
true,* true
*,true true
false,false false
* maybe
}
maketable implies 2 {
false,* true
*,true true
true,false false
* maybe
}
maketable equiv 2 {
*,maybe maybe
maybe,* maybe
true,true true
false,false true
* false
}
}
| package main
import "fmt"
type trit int8
const (
trFalse trit = iota - 1
trMaybe
trTrue
)
func (t trit) String() string {
switch t {
case trFalse:
return "False"
case trMaybe:
return "Maybe"
case trTrue:
return "True "
}
panic("Invalid trit")
}
func trNot(t trit) trit {
return -t
}
func trAnd(s, t trit) trit {
if s < t {
return s
}
return t
}
func trOr(s, t trit) trit {
if s > t {
return s
}
return t
}
func trEq(s, t trit) trit {
return s * t
}
func main() {
trSet := []trit{trFalse, trMaybe, trTrue}
fmt.Println("t not t")
for _, t := range trSet {
fmt.Println(t, trNot(t))
}
fmt.Println("\ns t s and t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trAnd(s, t))
}
}
fmt.Println("\ns t s or t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trOr(s, t))
}
}
fmt.Println("\ns t s eq t")
for _, s := range trSet {
for _, t := range trSet {
fmt.Println(s, t, trEq(s, t))
}
}
}
|
Translate the given Rust code snippet into PHP without altering its behavior. | use std::{ops, fmt};
#[derive(Copy, Clone, Debug)]
enum Trit {
True,
Maybe,
False,
}
impl ops::Not for Trit {
type Output = Self;
fn not(self) -> Self {
match self {
Trit::True => Trit::False,
Trit::Maybe => Trit::Maybe,
Trit::False => Trit::True,
}
}
}
impl ops::BitAnd for Trit {
type Output = Self;
fn bitand(self, other: Self) -> Self {
match (self, other) {
(Trit::True, Trit::True) => Trit::True,
(Trit::False, _) | (_, Trit::False) => Trit::False,
_ => Trit::Maybe,
}
}
}
impl ops::BitOr for Trit {
type Output = Self;
fn bitor(self, other: Self) -> Self {
match (self, other) {
(Trit::True, _) | (_, Trit::True) => Trit::True,
(Trit::False, Trit::False) => Trit::False,
_ => Trit::Maybe,
}
}
}
impl Trit {
fn imp(self, other: Self) -> Self {
match self {
Trit::True => other,
Trit::Maybe => {
if let Trit::True = other {
Trit::True
} else {
Trit::Maybe
}
}
Trit::False => Trit::True,
}
}
fn eqv(self, other: Self) -> Self {
match self {
Trit::True => other,
Trit::Maybe => Trit::Maybe,
Trit::False => !other,
}
}
}
impl fmt::Display for Trit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(
f,
"{}",
match self {
Trit::True => 'T',
Trit::Maybe => 'M',
Trit::False => 'F',
}
)
}
}
static TRITS: [Trit; 3] = [Trit::True, Trit::Maybe, Trit::False];
fn main() {
println!("not");
println!("-------");
for &t in &TRITS {
println!(" {} | {}", t, !t);
}
table("and", |a, b| a & b);
table("or", |a, b| a | b);
table("imp", |a, b| a.imp(b));
table("eqv", |a, b| a.eqv(b));
}
fn table(title: &str, f: impl Fn(Trit, Trit) -> Trit) {
println!();
println!("{:3} | T M F", title);
println!("-------------");
for &t1 in &TRITS {
print!(" {} | ", t1);
for &t2 in &TRITS {
print!("{} ", f(t1, t2));
}
println!();
}
}
| #!/usr/bin/php
<?php
# defined as numbers, so I can use max() and min() on it
if (! define('triFalse',0)) trigger_error('Unknown error defining!', E_USER_ERROR);
if (! define('triMaybe',1)) trigger_error('Unknown error defining!', E_USER_ERROR);
if (! define('triTrue', 2)) trigger_error('Unknown error defining!', E_USER_ERROR);
$triNotarray = array(triFalse=>triTrue, triMaybe=>triMaybe, triTrue=>triFalse);
# output helper
function triString ($tri) {
if ($tri===triFalse) return 'false ';
if ($tri===triMaybe) return 'unknown';
if ($tri===triTrue) return 'true ';
trigger_error('triString: parameter not a tri value', E_USER_ERROR);
}
function triAnd() {
if (func_num_args() < 2)
trigger_error('triAnd needs 2 or more parameters', E_USER_ERROR);
return min(func_get_args());
}
function triOr() {
if (func_num_args() < 2)
trigger_error('triOr needs 2 or more parameters', E_USER_ERROR);
return max(func_get_args());
}
function triNot($t) {
global $triNotarray; # using result table
if (in_array($t, $triNotarray)) return $triNotarray[$t];
trigger_error('triNot: Parameter is not a tri value', E_USER_ERROR);
}
function triImplies($a, $b) {
if ($a===triFalse || $b===triTrue) return triTrue;
if ($a===triMaybe || $b===triMaybe) return triMaybe;
# without parameter type check I just would return triFalse here
if ($a===triTrue && $b===triFalse) return triFalse;
trigger_error('triImplies: parameter type error', E_USER_ERROR);
}
function triEquiv($a, $b) {
if ($a===triTrue) return $b;
if ($a===triMaybe) return $a;
if ($a===triFalse) return triNot($b);
trigger_error('triEquiv: parameter type error', E_USER_ERROR);
}
# data sampling
printf("--- Sample output for a equivalent b ---\n\n");
foreach ([triTrue,triMaybe,triFalse] as $a) {
foreach ([triTrue,triMaybe,triFalse] as $b) {
printf("for a=%s and b=%s a equivalent b is %s\n",
triString($a), triString($b), triString(triEquiv($a, $b)));
}
}
|
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.