{ std::cout<< info <<":"<<"capacity="<<vec.capacity()<<","<<"size="<<vec.size()<<std::endl; }intmain() { std::vector<char>vecTest; vecTest.assign(5,0); ShowInfo("assign", vecTest); vecTest.resize(10); ShowInfo("resize", vecTest); vecTest.reserve(15); ShowInfo("rese...
{ std::cout<< info <<":"<<"capacity="<<vec.capacity()<<","<<"size="<<vec.size()<<std::endl; }intmain() { std::vector<char>vecTest; vecTest.assign(5,0); ShowInfo("assign", vecTest); vecTest.resize(10); ShowInfo("resize", vecTest); vecTest.reserve(15); ShowInfo("rese...
下列代码用 assign 添加数个字符到 std::vector<char> :运行此代码 #include <vector> #include <iostream> int main() { std::vector<char> characters; characters.assign(5, 'a'); for (char c : characters) { std::cout << c << ' '; } characters.assign({'\n', 'C', '+', '+', ...
std::vector<T,Allocator>::assign voidassign(size_type count,constT&value); (1)(C++20 起为constexpr) template<classInputIt> voidassign(InputIt first, InputIt last); (2)(C++20 起为constexpr) voidassign(std::initializer_list<T>ilist); ...
operators (std::unordered_multimap) operators (std::unordered_multiset) operators (std::unordered_set) operators (std::vector) remove_if remove_if std::array std::array::at std::array::back std::array::begin std::array::cbegin std::array::cend std::array::crbegin std::array::crend st...
std::vector<T,Allocator>::assign C++ Containers library std::vector voidassign(size_type count,constT&value); (1)(constexpr since C++20) template<classInputIt> voidassign(InputIt first, InputIt last); (2)(constexpr since C++20)
std::vector<T,Allocator>::push_back std::vector<T,Allocator>::assign std::vector<T,Allocator>::get_allocator std::vector<T,Allocator>::operator[] std::vector<T,Allocator>::front std::vector<T,Allocator>::at std::vector<T,Allocator>::pop_back std::vector<T,Allocator>::end, std::...
std::vector Member types Member functions vector::vector vector::~vector vector::operator= vector::assign vector::assign_range (C++23) vector::get_allocator Element access vector::at vector::operator[] vector::front vector::back vector::data ...
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Summary This PR optimizes the vector<_Tp, _Allocator>::__assign_with_sentinel function by assigning to already initialized memory instead of first destroying elements and then constructing new ones...