std::swap(std::tuple) (C++11) specializes thestd::swapalgorithm (function template) Helper concepts tuple-likepair-like (C++23) specifies that a type implemented thetuple protocol (std::get,std::tuple_element,st
typename std::tuple_element<I, std::tuple<Types...>>::type& get( std::tuple<Types...>& t ) noexcept; (1) (since C++11) (constexpr since C++14) template< std::size_t I, class... Types > typename std::tuple_element<I, std::tuple<Types...>>::type&& get( std::tuple<...
typestd::integral_constant<std::size_t, value> Example Run this code #include <iostream>#include <tuple>template<classT>voidtest(T value){inta[std::tuple_size_v<T>];// can be used at compile timestd::cout<<std::tuple_size<T>{}<<' '// or at run time<<sizeof a<<' '<<size...
struct tuple_size<std::pair<T1, T2>> : std::integral_constant<std::size_t, 2> { }; (C++11 起) std::tuple_size 对对偶的部分特化提供在编译时使用元组式语法获得对偶中元素个数的方法,该数总是 2。 继承自 std::integral_constant 成员常量 value [静态] 常数值 2 (公开静态成员常量) 成...
可以学习哈希表相关知识 >array 可以当作部分 pair 和 tuple 的替用品,或者替代原生数组 # 一些其他容器 >bitset >basic_string 另外,可以参阅C 的字符串函数 # IO >cpp 风格 IO 可以了解 stringstream 类,以及 输入/输出操纵符 >C 风格 IO +fopen ...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...
pair−tuple(C++11) optional(C++17)−any(C++17) variant(C++17)−format(C++20) 文字列ライブラリ basic_string basic_string_view(C++17) ヌル終端文字列: バイト−マルチバイト−ワイド コンテナライブラリ array(C++11)−vector ...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...