text stringlengths 0 601k |
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let ( > ) = gt |
let ( <= ) = leq |
let ( >= ) = geq |
let invert a n = try Some ( Z . invert a n ) with Division_by_zero -> None |
let pr ch x = output_string ch ( I . to_string x ) ; flush ch |
let pr2 ch ( x , y ) = Printf . fprintf ch " % s , % s " ( I . to_string x ) ( I . to_string y ) ; flush ch |
let pr3 ch ( x , y , z ) = Printf . fprintf ch " % s , % s , % s " ( I . to_string x ) ( I . to_string y ) ( I . to_string z ) ; flush ch |
let prfloat ch ( x , y : float * float ) = if x = y then Printf . fprintf ch " OK " else Printf . fprintf ch " WRONG ! ( expected % g , got % g ) " y x |
let prmarshal ch ( x , y : I . t * I . t ) = ( if I . equal x y then Printf . fprintf ch " OK " else Printf . fprintf ch " WRONG ! ( expected % a , got % a ) " pr y pr x ) ; flush ch |
let pow2 n = let rec doit acc n = if n <= 0 then acc else doit ( I . add acc acc ) ( n - 1 ) in doit I . one n |
let fact n = let rec doit acc n = if n <= 1 then acc else doit ( I . mul acc ( I . of_int n ) ) ( n - 1 ) in doit I . one n |
let pow a b = let rec doit b = if b <= 0 then I . one else let acc = doit ( b lsr 1 ) in if b land 1 = 1 then I . mul ( I . mul acc acc ) ( I . of_int a ) else I . mul acc acc in doit b |
let cvt_int x = try string_of_int ( I . to_int x ) with I . Overflow -> " ovf " |
let cvt_int32 x = try Int32 . to_string ( I . to_int32 x ) with I . Overflow -> " ovf " |
let cvt_int64 x = try Int64 . to_string ( I . to_int64 x ) with I . Overflow -> " ovf " |
let cvt_nativeint x = try Nativeint . to_string ( I . to_nativeint x ) with I . Overflow -> " ovf " |
let p2 = I . of_int 2 |
let p30 = pow2 30 |
let p62 = pow2 62 |
let p300 = pow2 300 |
let p120 = pow2 120 |
let p121 = pow2 121 |
let maxi = I . of_int max_int |
let mini = I . of_int min_int |
let maxi32 = I . of_int32 Int32 . max_int |
let mini32 = I . of_int32 Int32 . min_int |
let maxi64 = I . of_int64 Int64 . max_int |
let mini64 = I . of_int64 Int64 . min_int |
let maxni = I . of_nativeint Nativeint . max_int |
let minni = I . of_nativeint Nativeint . min_int |
let chk_bits x = Printf . printf " to_bits % a \ n " = pr x ; String . iter ( fun c -> Printf . printf " % 02x " ( Char . code c ) ) ( I . to_bits x ) ; Printf . printf " \ n " ; assert ( I . equal ( I . abs x ) ( I . of_bits ( I . to_bits x ) ) ) ; assert ( ( I . to_bits x ) = ( I . to_bits ( I . neg x ) ) ) ; Printf ... |
let chk_extract ( x , o , l ) = let expected = I . logand ( I . shift_right x o ) ( I . pred ( I . shift_left ( I . of_int 1 ) l ) ) and actual = I . extract x o l in Printf . printf " extract % a % d % d = % a " pr x o l pr actual ; if I . equal actual expected then Printf . printf " ( passed ) \ n " else Printf . pri... |
let chk_signed_extract ( x , o , l ) = let uns_res = I . extract x o l in let expected = if I . compare uns_res ( I . shift_left ( I . of_int 1 ) ( l - 1 ) ) >= 0 then I . sub uns_res ( I . shift_left ( I . of_int 1 ) l ) else uns_res in let actual = I . signed_extract x o l in Printf . printf " signed_extract % a % d ... |
let chk_numbits_tz x = Printf . printf " numbits / trailing_zeros % a " pr x ; let n = I . numbits x and z = I . trailing_zeros x in if if I . equal x I . zero then n = 0 && z = max_int else n > 0 && z >= 0 && z < n && I . leq ( I . shift_left I . one ( n - 1 ) ) ( I . abs x ) && I . lt ( I . abs x ) ( I . shift_left I... |
let chk_testbit x = Printf . printf " testbit % a " pr x ; let n = I . numbits x in let ok = ref true in for i = 0 to n + 64 do let actual = I . testbit x i and expected = I . extract x i 1 in if not ( I . equal expected ( if actual then I . one else I . zero ) ) then begin Printf . printf " ( error on % d ) " i ; ok :... |
let test_Z ( ) = Printf . printf " 0 \ n = % a \ n " pr I . zero ; Printf . printf " 1 \ n = % a \ n " pr I . one ; Printf . printf " - 1 \ n = % a \ n " pr I . minus_one ; Printf . printf " 42 \ n = % a \ n " pr ( I . of_int 42 ) ; Printf . printf " 1 + 1 \ n = % a \ n " pr ( I . add I . one I . one ) ; Printf . print... |
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