C++17标准也不例外,其中std::tuple及其相关功能的增强尤为引人注目。本文将深入且详细地介绍std::tuple、std::apply、std::make_from_tuple、推导指南以及std::any的使用方法和丰富多样的应用场景,助力你更好地理解和利用这些强大的工具。 std::tuple 概述 std::tuple是C++标准库中一个非常实用的固定大小的异构容...
C++14 #include<tuple>#include<iostream>template<typenameT>constexprintget_type_index(){return0;}template<typenameT,typenameT1,typename...Ts>constexprintget_type_index(){if(std::is_same<T,T1>::value){return0;}returnget_type_index<T,Ts...>()+1;}template<typenameTypeForFindIndex,typename...
std::pair包含两个元素，std::tuple 可以同时包含多个元素，它拥有 struct 的表现，但是无需定义实际的...
Implement the changes from P2944R3 which add constraints to the comparison operators of std::pair, std::tuple, and std::variant. The paper also changes std::optional, but we already constrain its comparisons using SFINAE on the return type. However, we need some additional constraints on the...
I can’t find a way to fix the code display. Reproduction case: repro.cpp 0 Feb 09, 2021 6:03 PM Feedback Bot Under Investigation··· This issue is currently being investigated. Our team will get back to you if either more informati...
问检查所有std::tuple元素是否满足条件+设计关注点EN根据可视化C++语言一致性，折叠表达式支持从VS2017 15.5开始，带有/std:c++17(或/std:c++latest)编译器选项。std
问std::tuple_element需要深度模板实例化EN为什么C++11没有为按索引获取元素添加特殊运算符？比如元组2...