int>::Pair(<brace-enclosed initializer list>)’ Pair<double,int> p{1.12}; std::cout...
#include<utility>#include<stdio.h>template<classT>unionDontInit{Tu;DontInit(){}};intmain(){std...
和原来那些只对应某种特定的类型说明符(例如 int)不同。auto 让编译器通过初始值来进行类型推演。从而获...
#include <string>#include <locale>#include <codecvt>// convert string to wstringinline std::...