remove_cvref_t<const int&>, int> << '\n' << std::is_same_v<std::remove_cvref_t<const int[2]>, int[2]> << '\n' << std::is_same_v<std::remove_cvref_t<const int(&)[2]>, int[2]> << '\n' << std::is_same_v<std::remove_cvref_t<int(int)>, int(int)> <<...
一种直接的 “成员特性” 方式(比如Circle语言中的T.remove_cvref)在日常编码中非常方便: using Cleaned = decltype(T.remove_cvref); 即使我们永远无法实现类型特性的点语法,也很可能会看到一些扩展或特殊内置功能,它们编译速度更快,并且能产生更清晰的错误消息。 6. 用一个示例整合所有内容 下面是一个小代码...
否则,若std::remove_cvref_t<decltype(t1)>为std::reference_wrapper的特化,则INVOKE(f, t1, t2, ..., tN)等价于(t1.get().*f)(t2, ..., tN)(C++17 起) 否则,若t1不满足前述条件,则INVOKE(f, t1, t2, ..., tN)等价于((*t1).*f)(t2, ..., tN)。
remove_cvref and remove_cvref_tImplemented the remove_cvref and remove_cvref_t type traits from P0550. These remove reference-ness and cv-qualification from a type without decaying functions and arrays to pointers (unlike std::decay and std::decay_t)....
P0550R2 remove_cvref VS 2019 16.0 20 P0318R1 unwrap_reference, unwrap_ref_decay VS 2019 16.1 20 P0457R2 starts_with()/ends_with() For basic_string/basic_string_view VS 2019 16.1 20 P0458R2 contains() For Ordered And Unordered Associative Containers VS 2019 16.1 20 P...
Implemented the remove_cvref and remove_cvref_t type traits from P0550, which are handy for stripping reference-ness and cv-qualification but without decaying functions and arrays to pointers (which std::decay and std::decay_t do). C++17 <charconv> floating-point to_chars() has been improve...
// For std::array else return 0; } template<typename T, std::size_t N> concept fixed_container = requires(T const& t) { { std::size(t) } -> std::same_as<std::size_t>; { std::begin(t) }; { std::end(t) }; } && get_fixed_size<std::remove_cvref_t<T>>() == N...
P0550R2 remove_cvref VS 2019 16.0 20 P0318R1 unwrap_reference, unwrap_ref_decay VS 2019 16.1 20 P0457R2 starts_with()/ends_with() For basic_string/basic_string_view VS 2019 16.1 20 P0458R2 contains() For Ordered And Unordered Associative Containers VS 2019 16.1 20 P...
std::cout auto show_lmbd = [](auto&& v){ using T =std::remove_cvref_t<decltype(...
:forward<F>(val);}template<typenameF>SimpleVariant&operator=(F&&val){usingTp=std::remove_cvref...