C++ 动态新闻推送 第55期
资讯
标准委员会动态/ide/编译器信息放在这里
把标题简单列一下
N4908 | Working Draft, C++ Extensions for Library Fundamentals, Version 3 | Thomas Köppe | 2022-02-19 | 2022-03 | | All of WG21 |
|---|---|---|---|---|---|---|
N4909 | Editor’s Report: C++ Extensions for Library Fundamentals, Version 3 | Thomas Köppe | 2022-02-19 | 2022-03 | | All of WG21 |
N4910 | Working Draft, Standard for Programming Language C++ | Thomas Köppe | 2022-03-17 | 2022-03 | | All of WG21 |
N4911 | Editors’ Report - Programming Languages - C++ | Thomas Köppe | 2022-03-17 | 2022-03 | | All of WG21 |
P0009R16 | MDSPAN | Christian Trott | 2022-03-15 | 2022-03 | P0009R15 | LWG Library |
P0957R6 | Proxy: A Polymorphic Programming Library | Mingxin Wang | 2022-03-15 | 2022-03 | P0957R5 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
P1083R5 | Move resource_adaptor from Library TS to the C++ WP | Pablo Halpern | 2022-02-24 | 2022-03 | P1083R4 | LEWG Library Evolution |
P1684R1 | mdarray: An Owning Multidimensional Array Analog of mdspan | Christian Trott | 2022-03-20 | 2022-03 | P1684R0 | LEWG Library Evolution |
P1708R6 | Simple Statistical Functions | Richard Dosselman | 2022-03-15 | 2022-03 | P1708R5 | SG6 Numerics,SG19 Machine Learning,LEWG Library Evolution |
P1839R4 | Accessing Object Representations | Krystian Stasiowski | 2022-03-16 | 2022-03 | P1839R3 | CWG Core |
P2264R3 | Make assert() macro user friendly for C and C++ | Peter Sommerlad | 2022-02-27 | 2022-03 | P2264R2 | SG22 Compatability,LEWG Library Evolution |
P2290R3 | Delimited escape sequences | Corentin Jabot | 2022-02-25 | 2022-03 | P2290R2 | SG22 Compatability,CWG Core |
P2465R3 | Standard Library Modules std and std.compat | Stephan T. Lavavej | 2022-03-11 | 2022-03 | P2465R2 | CWG Core,LWG Library |
P2510R1 | Formatting pointers | Mark de Wever | 2022-03-20 | 2022-03 | P2510R0 | LWG Library |
P2511R1 | Beyond operator(): NTTP callables in type-erased call wrappers | Zhihao Yuan | 2022-03-15 | 2022-03 | P2511R0 | LEWG Library Evolution |
P2521R2 | Contract support – Working Paper | Andrzej Krzemieński | 2022-03-15 | 2022-03 | P2521R1 | SG21 Contracts |
P2539R0 | Should the output of std::print to a terminal be synchronized with the underlying stream? | Victor Zverovich | 2022-03-11 | 2022-03 | | LEWG Library Evolution |
P2540R1 | Empty Product for certain Views | Steve Downey | 2022-03-14 | 2022-03 | P2540R0 | SG9 Ranges,LEWG Library Evolution |
P2553R1 | Make mdspan size_type controllable | Christian Trott | 2022-03-15 | 2022-03 | P2553R0 | LEWG Library Evolution,LWG Library |
P2555R1 | Naming improvements for std::execution | Jens Maurer | 2022-03-13 | 2022-03 | P2555R0 | LEWG Library Evolution |
P2558R0 | Add @, $, and ` to the basic character set | Steve Downey | 2022-03-16 | 2022-03 | | SG16 Unicode,EWGI SG17: EWG Incubator,SG22 Compatability | | |||||
P2560R0 | Comparing value- and type-based reflection | Matúš Chochlı́k | 2022-02-23 | 2022-03 | | SG7 Reflection |
P2562R0 | constexpr Stable Sorting | Oliver Rosten | 2022-03-09 | 2022-03 | | LEWG Library Evolution,LWG Library |
P2564R0 | consteval needs to propagate up | Barry Revzin | 2022-03-14 | 2022-03 | | EWG Evolution |
P2565R0 | Supporting User-Defined Attributes | Bret Brown | 2022-03-15 | 2022-03 | | SG15 Tooling |
P2568R0 | Proposal of std::map::at_ptr | Andrew Tomazos | 2022-03-18 | 2022-03 | | LEWG Library Evolution |
P2569R0 | *_HAS_SUBNORM==0 implies what? | Fred Tydeman | 2022-03-18 | 2022-03 | | SG6 Numerics,SG22 Compatability |
编译器信息最新动态推荐关注hellogcc公众号 本周更新 2022-03-23 第142期
文章
enum { QL = 42 };
int main() {
std::cout << std::to_underlying(QL); // prints 42
static_assert(typeid(std::to_underlying(QL)) == typeid(unsigned));
}没啥说的
c++/rust混合编程的一些问题
讲UI实现的。看不懂
std::tuple tp { 10, 20, "hello"};
std::cout << tp << '\n'; // << err ??tuple不能这么打印。重载有问题
只好这么写
template <typename TupleT, std::size_t TupSize = std::tuple_size_v<TupleT>>
std::ostream& operator <<(std::ostream& os, const TupleT& tp) {
return printTupleImp(os, tp, std::make_index_sequence<TupSize>{});
}视频
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