id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
DynamoDB_Security/HowItWorks.NamingRulesDataTypes.html8_4_0.txt | The following are the naming rules for DynamoDB:
* All names must be encoded using UTF-8, and are case-sensitive. | |
DynamoDB_Security/HowItWorks.NamingRulesDataTypes.html8_27_0.txt | ###### Note
Unlike conventional relational databases, DynamoDB does not natively support a
date and time data type. It can be useful instead to store date and time data
as a number data type, using Unix epoch time. | |
DynamoDB_Security/HowItWorks.NamingRulesDataTypes.html8_44_0.txt | DynamoDB supports types that represent sets of number, string, or binary
values. All the elements within a set must be of the same type. For example, a
Number Set can only contain numbers and a String Set can only contain strings.
There is no limit on the number of values in a set, as long as the item
containing the v... | |
DynamoDB_Security/19565_6_0.txt | Instant dev environments
* Copilot | |
DynamoDB_Security/HowItWorks.NamingRulesDataTypes.html8_39_0.txt | ###### Note
DynamoDB lets you work with individual elements within lists, even if those
elements are deeply nested. For more information, see Using expressions in
DynamoDB . | |
DynamoDB_Security/Security_1_1.txt | licy example allows the user ` John ` to perform the [
RestoreTableToPointInTime
](https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_RestoreTableToPointInTime.html)
, [ GetItem
](https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_GetItem.html)
, and [ PutItem
](https://docs.aws.amazon.c... | |
DynamoDB_Security/Security_4_0.txt | [ ](/pdfs/amazondynamodb/latest/developerguide/dynamodb-dg.pdf#privatelink-
interface-endpoints "Open PDF")
[ AWS ](https://aws.amazon.com) [ Documentation ](/index.html) [ Amazon
DynamoDB ](/dynamodb/index.html) [ Developer Guide ](Introduction.html)
Types of Amazon VPC endpoints Considerations when using AWS Priva... | |
DynamoDB_Security/strings-from-dynamodb-that-were-originally-byte-arrays-have-funky-values4_49_0.txt | Sign up using Facebook
Sign up using Email and Password | |
DynamoDB_Security/19565_10_0.txt | Collaborate outside of code
Explore | |
cpp_utility/CanIconstexpranstdar_15_0.txt | Related questions
Why are so many C++ projects using C-style arrays rather than std::array?
When do you use a const variable instead of Constexpr?
What are the advantages of using std: :array over other built-in types like int [] or string [], etc. while programming with C++?
How do I declare an array as a private clas... | |
cpp_utility/76362_20_0.txt | * [ Topics ](https://github.com/topics)
* [ Trending ](https://github.com/trending)
* [ Collections ](https://github.com/collections) | |
cpp_utility/76362_1_0.txt | ## Navigation Menu | |
cpp_utility/76362_40_0.txt | {{ message }} | |
cpp_utility/0eQsx6ip1DwJpli1_259_0.txt | Copy link | |
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cpp_utility/76362_58_0.txt | Labels | |
cpp_utility/76362_82_0.txt | **[ dyumin ](/dyumin) ** commented Dec 25, 2023 • | |
cpp_utility/constexprarraysize_104_0.txt | Contents | |
cpp_utility/constexprarraysize_76_0.txt | int c_array[5];
std::array<int, 5> cpp_array; | |
cpp_utility/76362_27_0.txt | # Provide feedback | |
cpp_utility/constexprarraysize_56_0.txt | template <typename T, size_t N>
constexpr size_t type_size(type_t<T[N]>) {
return N;
}; | |
cpp_utility/0eQsx6ip1DwJpli1_158_0.txt |  | |
cpp_utility/constexprarraysize_48_0.txt | int elems[] = {1, 2, 3, 4, 5};
f(elems); // perfectly safe, known statically | |
cpp_utility/constexprarraysize_30_0.txt | void check_arr_val(std::array<int, 3> const param) {
std::array<int, 3> local = {1, 2, 3};
constexpr auto s3 = std::size(local); // ok
constexpr auto s4 = std::size(param); // ok
} | |
cpp_utility/76362_11_0.txt | * [ Enterprise ](https://github.com/enterprise)
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cpp_utility/constexprarraysize_90_0.txt | But the three calls to ` emplace_back() ` all invoke something that is roughly
equivalent to (this isn’t exactly correct, but for the purposes of this
discussion, it’s good enough): | |
cpp_utility/cpp_classes_0_1.txt | p/utility/compare/three_way_comparable "cpp/utility/compare/three way
comparable") (C++20) (C++20)
[ strong_ordering ](/w/cpp/utility/compare/strong_ordering
"cpp/utility/compare/strong ordering") (C++20)
[ weak_ordering ](/w/cpp/utility/compare/weak_ordering
"cpp/utility/compare/weak ordering") (C++20)
[ part... | |
cpp_utility/0eQsx6ip1DwJpli1_108_0.txt | to std-dis...@isocpp.org | |
cpp_utility/0eQsx6ip1DwJpli1_201_0.txt | ### Richard Smith | |
cpp_utility/0eQsx6ip1DwJpli1_10_0.txt | [ Conversations ](./a/isocpp.org/g/std-discussion) | |
cpp_utility/cpp_classes_2_3.txt | standard library
types:
[ std::tuple_element <std::tuple> ](/w/cpp/utility/tuple/tuple_element "cpp/utility/tuple/tuple element") (C++11) | obtains the type of the specified element
(class template specialization) [ [edit]
](https://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/tuple/dsc_tuple_... | |
cpp_utility/0eQsx6ip1DwJpli1_49_0.txt | ### Daniel Krügler | |
cpp_utility/0eQsx6ip1DwJpli1_179_0.txt | It reduces compilation time, by limiting the set of function calls that
implementations are required to try evaluating during translation. (This
matters for contexts where implementations are required to try constant
expression evaluation, but it's not an error if such evaluation fails -- in
particular, the initializer... | |
cpp_utility/0eQsx6ip1DwJpli1_127_0.txt | Report message | |
cpp_utility/0eQsx6ip1DwJpli1_111_0.txt |
| TBH I don't really understand why we need the constexpr qualifier for
| functions in the first place. | |
cpp_utility/76362_64_0.txt | **[ dyumin ](/dyumin) ** commented Dec 25, 2023 • | |
cpp_utility/cpp_classes_4_5.txt | ered_by_tigertech_88x31.png) ](http://www.tigertech.net/referral/cppreference.com)
| |
cpp_utility/76362_66_0.txt | The following code | |
cpp_utility/0eQsx6ip1DwJpli1_260_0.txt | Report message | |
cpp_utility/cpp_classes_2_4.txt | T1, T2, T3>> { using type = T2; };
template<typename T1, typename T2, typename T3>
struct std::tuple_element<2, Triple<T1, T2, T3>> { using type = T3; };
template<typename... Args> struct TripleTypes
{
static_assert(3 == sizeof...(Args), "Expected exactly 3 type names");
... | |
cpp_utility/CanIconstexpranstdar_12_0.txt | Promoted by Asana
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cpp_utility/76362_79_0.txt | Copy link | |
cpp_utility/0eQsx6ip1DwJpli1_268_0.txt | I didn't notice that the changes "Relaxing constraints on constexpr functions"
were so recent, it makes sense that the adjustment are not yet propagated into
the entire library. But l hope that C++14 won't ship with a part of the std
library converted to the new meaning of constexpr and the other with constepxr
only fo... | |
cpp_utility/76362_15_0.txt | * [ Learning Pathways ](https://resources.github.com/learn/pathways)
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cpp_utility/0eQsx6ip1DwJpli1_222_0.txt | >> ` ` | |
cpp_utility/cpp_classes_1_3.txt | _size<X>::value,
// then soft error encountered, binds to public data members
| (since C++17)
---|---
## Contents
* 1 Specializations
* 2 Helper variable template
* 3 Inherited from std:: integral_constant
* 3.1 Member constants
* 3.2 Member functions
... | |
cpp_utility/0eQsx6ip1DwJpli1_17_0.txt |  | |
cpp_utility/0eQsx6ip1DwJpli1_280_0.txt | You do not have permission to delete messages in this group | |
cpp_utility/constexprarraysize_6_0.txt | Post | |
cpp_utility/0eQsx6ip1DwJpli1_26_0.txt | You do not have permission to delete messages in this group | |
cpp_utility/76362_97_0.txt | --- | |
cpp_utility/0eQsx6ip1DwJpli1_253_0.txt | Reply to author | |
cpp_utility/constexprarraysize_92_0.txt |
That is, the conversion so ` span ` happens _inside_ of ` emplace_back() ` .
In order for this to still work for ` dynamic_span ` , we would need to
somehow remember that ` arg ` refers to a constant expression. And while `
dynamic_span ` is a constant expression, ` bunch_of_spans ` doesn’t have to be
- this could be ... | |
cpp_utility/0eQsx6ip1DwJpli1_226_0.txt |  | |
cpp_utility/cpp_classes_5_0.txt | ##### [ cppreference.com ](/)
[ Log in
](/mwiki/index.php?title=Special:UserLogin&returnto=cpp%2Futility%2Finteger+sequence
"You are encouraged to log in; however, it is not mandatory \[o\]")
##### Namespaces
* [ Page ](/w/cpp/utility/integer_sequence "View the content page \[c\]")
* [ Discussion ](/w/Talk:cpp... | |
cpp_utility/0eQsx6ip1DwJpli1_242_0.txt | On Monday, October 14, 2013 3:18:18 AM UTC-4, Richard Smith wrote: | |
cpp_utility/0eQsx6ip1DwJpli1_217_0.txt | > Actually, it's worse than you think. I originally used N3690 as a C++14
> reference for my proposal (a future N3794), then I discovered there's a
> later draft: N3691. That draft stripped "constexpr" off of all of array 's
> methods, except for size , empty , and max_size . So my proposal
> followed the later... | |
cpp_utility/constexprarraysize_11_0.txt | _12 min_ read | |
cpp_utility/constexprarraysize_95_0.txt | constexpr int c_array[] = {1, 2, 3, 4, 5};
constexpr std::span<int> dynamic_span = c_array; | |
cpp_utility/0eQsx6ip1DwJpli1_238_0.txt | Sign in to report message | |
cpp_utility/0eQsx6ip1DwJpli1_191_0.txt | Copy link | |
cpp_utility/76362_71_0.txt | [ godbolt link ](https://godbolt.org/z/jY13Pb1jr) | |
cpp_utility/cpp_classes_1_1.txt | omparison "cpp/utility")
[ three_way_comparable three_way_comparable_with
](/w/cpp/utility/compare/three_way_comparable "cpp/utility/compare/three way
comparable") (C++20) (C++20)
[ strong_ordering ](/w/cpp/utility/compare/strong_ordering
"cpp/utility/compare/strong ordering") (C++20)
[ weak_ordering ](/w/cpp... | |
cpp_utility/76362_55_0.txt | Open | |
cpp_utility/0eQsx6ip1DwJpli1_68_0.txt | [ http://cplusplus.github.io/LWG/lwg-defects.html#2013
](http://cplusplus.github.io/LWG/lwg-defects.html#2013) | |
cpp_utility/constexprarraysize_111_0.txt | © 2023 [ Barry Revzin ](https://twitter.com/BarryRevzin) . Some rights
reserved. | |
cpp_utility/constexprarraysize_60_0.txt | But this can only work for a range whose size is encoded into its type. It
can’t work for a range whose size is a constant expression - which is at least
conceptually what we want. One such range? Why ` span ` , of course: | |
cpp_utility/76362_26_0.txt | [ Search syntax tips ](https://docs.github.com/search-github/github-code-
search/understanding-github-code-search-syntax) | |
cpp_utility/CanIconstexpranstdar_36_0.txt | In fact, I modified the libc++ and libstdc++ implementations of `std::map` to add `constexpr` to all the member functions and they worked at compile time. | |
cpp_utility/0eQsx6ip1DwJpli1_146_0.txt | Delete | |
cpp_utility/0eQsx6ip1DwJpli1_137_0.txt | \- D | |
cpp_utility/constexprarraysize_15_0.txt | #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0])) | |
cpp_utility/CanIconstexpranstdar_26_0.txt | Profile photo for David Vandevoorde
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C++ committee and direction group memberAuthor has 1.2K answers and 11.1M answer views
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cpp_utility/constexprarraysize_28_0.txt | But if the ` param ` case is ill-formed, why does the ` local ` case work? An
unsatisfying answer is that… there just isn’t any rule in [ [expr.const]
](http://eel.is/c++draft/expr.const#4) that we’re violating. There’s no
lvalue-to-rvalue conversion (we’re not reading through the reference in any
way yet) and we’re no... | |
cpp_utility/0eQsx6ip1DwJpli1_261_0.txt | Sign in to report message | |
cpp_utility/CanIconstexpranstdar_27_0.txt | I say “traditionally”, because the C++ language doesn’t quite describe it that way: It leaves room for alternative implementation strategies (such as a C++ interpreter). Still, it’s okay to think in terms of “run time environment” (the program entities usable after everything has been compiled, linked, and loaded), and... | |
cpp_utility/0eQsx6ip1DwJpli1_295_0.txt | Search | |
cpp_utility/0eQsx6ip1DwJpli1_163_0.txt | Sign in to reply to author | |
cpp_utility/76362_14_0.txt | Resources | |
cpp_utility/0eQsx6ip1DwJpli1_118_0.txt | unread, | |
cpp_utility/CanIconstexpranstdar_30_0.txt | Slightly longer: constexpr can qualify variables or functions. It can also be used in conjunction with if-statements as of C++17. | |
cpp_utility/76362_0_0.txt | Skip to content | |
cpp_utility/constexprarraysize_32_0.txt | So as long as you pass all your containers around by value, you’re able to use
get and use the size as a constant expression. Which is the kind of thing
that’s intellectually interesting, but also wildly impractical because
obviously nobody’s about to start passing all their containers around _by
value_ . | |
cpp_utility/0eQsx6ip1DwJpli1_192_0.txt | Report message | |
cpp_utility/constexprarraysize_93_0.txt | I have no idea. | |
cpp_utility/cpp_classes_2_1.txt | p/utility#Three-way_comparison "cpp/utility")
[ three_way_comparable three_way_comparable_with
](/w/cpp/utility/compare/three_way_comparable "cpp/utility/compare/three way
comparable") (C++20) (C++20)
[ strong_ordering ](/w/cpp/utility/compare/strong_ordering
"cpp/utility/compare/strong ordering") (C++20)
[ we... | |
cpp_utility/0eQsx6ip1DwJpli1_256_0.txt | Sign in to forward | |
cpp_utility/constexprarraysize_83_0.txt | ### The ` emplace_back() ` problem __ | |
cpp_utility/0eQsx6ip1DwJpli1_164_0.txt | Forward | |
cpp_utility/CanIconstexpranstdar_17_0.txt | You can even use algorithms with it. | |
cpp_utility/0eQsx6ip1DwJpli1_9_0.txt | ## ISO C++ Standard - Discussion | |
cpp_utility/0eQsx6ip1DwJpli1_199_0.txt | Daryle W. | |
cpp_utility/0eQsx6ip1DwJpli1_277_0.txt | Forward | |
cpp_utility/cpp_classes_4_4.txt | ence.com/mwiki/index.php?title=Template:cpp/utility/tuple/dsc_tuple_element&action=edit)
[ std::tuple_element <std::array> ](/w/cpp/container/array/tuple_element "cpp/container/array/tuple element") (C++11) | obtains the type of the elements of ` array `
(class template specialization) [ [edit]
](https://en.cp... | |
cpp_utility/76362_121_0.txt | 3 participants | |
cpp_utility/constexprarraysize_58_0.txt | template <typename T, size_t Extent>
struct span {
template <range R>
requires (type_size(type<std::remove_cvref_t<R>>)
== Extent);
span(R&& r)
}; | |
cpp_utility/constexprarraysize_9_0.txt | Posted _Feb 5, 2020_ |
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