(const reference& x) noexcept; constexpr const reference& operator=(bool x) const noexcept; constexpr void flip() noexcept; // 翻转位 }; // 构造/复制/销毁 constexpr vector() noexcept(noexcept(Allocator())) : vector(Allocator()) { } constexpr explicit vector(const Allocator&) noexcept; ...
cppreference.com 创建账户 页面 讨论 变换 查看 编辑 历史 std::vector C++ 容器库 std::vector 在标头<vector>定义 template< classT, classAllocator=std::allocator<T> >classvector; (1) namespace { template<classT> usingvector=std::vector<T,std::pmr::polymorphic_allocator<T>>; ...
cppreference.com Create account Page Discussion Standard revision:DiffC++98/03C++11C++14C++17C++20C++23C++26 View Edit History std::vector C++ Containers library std::vector Defined in header<vector> template< classT, classAllocator=std::allocator<T> ...
1.inplace_vector— A reference implementation ofP0843R14(std::inplace_vector). 2.static_vector— Boost.Container implements inplace vector as a standalone type with its own guarantees. 3.fixed_vector— EASTL implements inplace vector via an extra template parameter. ...
std::vector<bool> behaves similarly to std::vector, but in order to be space efficient, it: Does not necessarily store its elements as a contiguous array. Exposes class std::vector<bool>::reference as a method of accessing individual bits. In particular, objects of this class are return...
so.6 #5 0x000000342cfae19e in operator delete () from /usr/lib64/libstdc++.so.6 问题4: 右值是什么鬼? 右值引用 就是引用 放在哪里? 肯定是栈上,通过名字就能直接 代码语言:javascript 代码运行次数:0 运行 AI代码解释 template<typename _Tp> inline typename std::remove_reference<_Tp>::type...
std::cout<< president.name <<"was re-elected president of"<< president.country <<"in"<< president.year <<".\n"; }return0; }///reference:https://stackoverflow.com/questions/4303513/push-back-vs-emplace-backinttest_emplace_3() {/*template <class... Args> pair<iterator,bool> emplace...
is_trivially_copyable:调用[std::memmove]迁移数据(https://en.cppreference.com/w/cpp/string/byte/memmove),std::vector没有这个逻辑。 否则,循环迁移元素。 std::vector迁移元素时,会根据是否有noexcept move constructor来决定调用move constructor还是copy constructor(之前这篇文章提到过:c++ 从vector扩容看noexce...
// cliext_vector_clear.cpp // compile with: /clr #include <cliext/vector> int main() { cliext::vector<wchar_t> c1; c1.push_back(L'a'); c1.push_back(L'b'); c1.push_back(L'c'); // display initial contents " a b c" for each (wchar_t elem in c1) System::Console::Wr...
typedefboolconst_reference; 注解 有关详细信息和代码示例,请参阅vector<bool>::reference::operator=。 vector<bool>::flip 反转vector<bool>中的所有位。 C++ voidflip(); 示例 C++ // vector_bool_flip.cpp// compile with: /EHsc /W4#include<vector>#include<iostream>intmain(){usingnamespacestd;cout...