// vector assignment#include<iostream>#include<vector>intmain(){std::vector<int>foo(3,0);// foo: 0 0 0std::vector<int>bar(5,0);// bar: 0 0 0 0 0bar=foo;// bar: 0 0 0foo=std::vector<int>();// foo:std::cout<<"Size of foo: "<<int(foo.size())<<'\n';std::cou...
// vector assignment#include<iostream>#include<vector>intmain(){std::vector<int>foo(3,0);// foo: 0 0 0std::vector<int>bar(5,0);// bar: 0 0 0 0 0bar = foo;// bar: 0 0 0foo = std::vector<int>();// foo:std::cout <<"Size of foo: "<<int(foo.size()) <<'\n';...
propagate_on_container_move_assignment 和 propagate_on_container_swap,他们都是true_type或false_type的别名,这三个属性除非用户自定义,否则默认是false_type,也即allocator在容器拷贝、移动或交换的时候不能直接进行allocator所分配的内存的所有权的转移
X(constX&); /// Private assignment operator. X&operator=(constX&); public: /// Some integer value intval; /// An object that can be neither copied nor moved mutex m; X(intval):val(val){} }; intmain() { // create list forward_list<X>xList; // add some items to list for(...
if (_Alty::propagate_on_container_move_assignment::value && this->_Getal() != _Right._Getal()) this->_Move_alloc(_Right._Getal());_Assign_rv(_STD forward<_Myt>(_Right)); } return (*this); }void _Assign_rv(_Myt&& _Right, true_type) ...
{1, 2, 3, 4, 5}; std::vector<int> vec2 = vec1; std::cout << "Using assignment operator:" << std::endl; for (int val : vec2) { std::cout << val << " "; } std::cout << std::endl; // 使用std::copy复制std::vector ...
Linear: the number of calls to the destructor ofTis the same as the number of elements erased, the assignment operator ofTis called the number of times equal to the number of elements in the vector after the erased elements. Notes
by some bug in your program (e.g., assignment using an out-of-bounds vector index)? -leor [color=blue] > >thanks in advance >janina >[/color] -- Leor Zolman --- BD Software ---www.bdsoft.com On-Site Training in C/C++, Java, Perl and Unix ...
std::vector::operator=在C库中的实现是很久以前就存在的。几乎可以肯定的是，它的作者知道他们在做...
std::deque and std::vector do not support very well data types with high cost of copy/assignment This draw simple conclusions on usage of each data structure: Number crunching: use std::vector or std::deque Linear search: use std::vector or std::deque ...