示例1: // C++ program to illustrate// unordered_multiset::swap()#include<iostream>#include<string>#include<unordered_set>usingnamespacestd;// Function to display the contents of multiset s.voiddisplay(unordered_multiset<int> s){for(autoit = s.begin(); it != s.end(); it++)cout<< *it...
Theelementsofarr2 after swap():51234 注:本文由VeryToolz翻译自unordered_set swap() function in C++ STL,非经特殊声明,文中代码和图片版权归原作者barykrg所有,本译文的传播和使用请遵循“署名-相同方式共享 4.0 国际 (CC BY-SA 4.0)”协议。
// CPP program to illustrate // Implementation of swap() function #include<iostream> #include<list> usingnamespacestd; intmain() { // list container declaration list<int>mylist1{1,2,3,4}; list<int>mylist2{3,5,7,9}; // using swap() function to //swap elements of lists mylist1...
C++ STL std::swap() Function swap()is a standard library function that swaps the value b/w any two objects. In C11, it has been moved under<utility>header. Below is the syntax details forswap(). Syntax void swap (T& a, T& b); ...
// C++ program for illustration ofswap() function#include<bits/stdc++.h>usingnamespacestd;intmain(){inta =10;intb =20;cout<<"Value of a before: "<< a <<endl;cout<<"Value of b before: "<< b <<endl;//swapvalues of the variablesswap(a, b);cout<<"Value of a now: "<< a...
C++ STL vector::swap() function: Here, we are going to learn about the swap() function of vector header in C++ STL with example.
C++0x中的function = something语法可能更适合,因为它是可选的。您原则上甚至可以针对安全和不安全的交换使用不同的选项。 - Steve Jessop @GMan:如果我没记错的话,只有当T实现了移动构造函数和移动赋值函数(接受参数为&&)时,std::move才会对您有益。 (而且看起来,编译器可能也不会为您生成这些函数。)否则,...
Most of the STL containers have a member function called "swap". Swap does what the name implies -- it causes two objects to trade places. My first thought when I read about the swap methods was to ask: "why bother writing such a thing?" Obviously swap can be easily accomplished like...
queue swap() in C STL - In this article we will be discussing the working, syntax and examples of queue::swap() function in C++ STL.What is a queue in C++ STL?Queue is a simple sequence or data structure defined in the C++ STL which does insertion and de
对于STL容器,std::swap调用各自的成员函数swap(特化swap)。 C++11之前,模板对象是通过拷贝构造产生,并且经过了两次赋值(如开头的例子),T类型要求必须是可拷贝的;C++11之后,使用的是移动构造和移动赋值,如果类是可拷贝的(copy),但是没有声明移动操作(move),就会使用拷贝构造与赋值。如果类的移动操作(move)声明为del...