std::erase_if(std::vector) - cppreference.com（尽管在网站上还是可以显示C++20之前也有erase的这个...
线性:调用T析构函数的次数与被擦除的元素数相同,调用T赋值运算符的次数与vector中被擦除元素后的元素数相等。 注解 当基于断言有需要擦除的容器元素时,取代在容器上迭代并调用一元erase的做法是,迭代器范围重载一般会和std::remove()/std::remove_if()一起使用,以最小化剩余(未被擦除)元素的移动次数,此即擦...
" << erased << '\n'; std::vector<std::complex<double>> nums{{2, 2}, {4, 2}, {4, 8}, {4, 2}}; #ifdef __cpp_lib_algorithm_default_value_type std::erase(nums, {4, 2}); #else std::erase(nums, std::complex<double>{4, 2}); #endif println("After erase {4, 2},...
在标头 <experimental/vector> 定义 template< class T, class Alloc, class Pred > void erase_if( std::vector<T, Alloc>& c, Pred pred ); (库基础 TS v2) 从容器擦除所有满足谓词 pred 的元素。等价于 c.erase(std::remove_if(c.begin(), c.end(), pred), c.end());。
erase(std::vector)erase_if(std::vector) (C++20) erases all elements satisfying specific criteria (function template) Deduction guides (since C++17) Notes Feature-testmacroValueStdFeature __cpp_lib_containers_ranges202202L(C++23)Ranges construction and insertion for containers ...
std::erase, std::erase_if (std::vector)en.cppreference.com/w/cpp/container/vector/erase2 ...
std::experimental::erase_if(std::vector) From cppreference.com <cpp |experimental Library fundamentals v2 Merged into ISO C++The functionality described on this page was merged into the mainline ISO C++ standardas of 11/2018, seestd::erase_if(since C++20) ...
std::erase, std::erase_if (std::vector) Defined in header <vector> template< class T, class Alloc, class U > constexpr typename std::vector<T, Alloc>::size_type erase( std::vector<T, Alloc>& c, const U& value ); (1) (since C++20) template< class T, class Alloc, class...
Because you don’t have a proper move ctor or assignment operator defined for your object the value ofc[2]will not actually be swapped when the move happens so it will retain the original pointer value. Please seehttps://en.cppreference.com/w/cpp/container/vector/erasefor more inform...
std::swap(std::vector) 特化std::swap 算法 (函数模板) erase(std::vector)erase_if(std::vector) (C++20) 擦除所有满足特定判别标准的元素 (函数模板) 推导指引(C++17 起) 示例 运行此代码 #include <iostream> #include <vector> int main() { // 创建含有整数的 vector std::vector<int> ...