std::queue::swap void swap( queue& other ) noexcept(/* see below */); (since C++11) 将容器适配器的内容与other.有效地打电话usingstd::swap; swap(c, other.c); 参数 other - container adaptor to exchange the contents with 返回值...
要有效地清除`std::queue`,您可以使用以下方法: 1. 使用`swap`方法: 创建一个新的空队列,并将其与要清除的队列交换。这样,新队列将变为空队列,原始队列将被清除。 ...
要清空std::queue,有几种常见的方法: 方法一:使用swap方法 你可以创建一个临时的空队列,然后使用swap方法将当前队列与空队列交换。这样,当前队列就会变为空,而临时队列会包含原来队列中的所有元素(但这些元素随后会被销毁)。 cpp #include <queue> #include <iostream> int main() { std::...
void swap( std::queue<T, Container>& lhs, std::queue<T, Container>& rhs ); (since C++11) (until C++17) template< class T, class Container > void swap( std::queue<T, Container>& lhs, std::queue<T, Container>& rhs ) noexcept(/* see below */); (since C++17) Specializes...
voidswap(queue&other)noexcept(/* see below */); (since C++11) usingstd::swap;swap(c, other.c); Return value (none) Exceptions noexceptspecification: noexcept(noexcept(swap(c, other.c))) In the expression above, the identifierswapis looked up in the same manner as the one used by the...
std::priority_queue<T,Container,Compare>::emplace std::priority_queue<T,Container,Compare>::pop std::priority_queue<T,Container,Compare>::swap std::priority_queue 的推导指引 std::swap(std::priority_queue) std::uses_allocator<std::priority_queue> std::priority_queue<T,Container,Compare>::~...
(5); // 队尾添加一个元素 myQueue.pop(); // 抛出队首元素 auto ret1 = myQueue.empty(); // 判断是否为空 auto ret2 = myQueue.size(); // 元素个数 std::deque<int> myDeque{ 2,3,4 }; std::queue<int> myQueue1(myDeque); myQueue.swap(myQueue1);// 交换元素 int test = 0...
swap (queue): Exchange contents of queues (public member function ) Non-member class specializations uses_allocator: Uses allocator for queue (class template ) Code Example #include<iostream>#include<deque>#include<list>#include<queue>usingnamespacestd;intmain(intargc,char**argv){deque<int>deck(...
std::queue<int> bags; bags.emplace(4); bags.emplace(7); bags.emplace(7); bags.swap(teeth); std::cout << teeth.size() << std::endl; //输出:3 std::cout << bags.size() << std::endl; //输出:2 9.运算符 = != > >= < <= ...
specializes the std::swap algorithm (function template) std::swap(std::priority_queue) specializes the std::swap algorithm (function template) std::swap(std::stack) specializes the std::swap algorithm (function template) std::swap(std::valarray) (C++11) ...