std::experimental::erase_if (std::basic_string)

定义于头文件 <experimental/string>
template <..., class Pred>
void erase_if(std::basic_string<...>& 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());

参数

c - 要从中擦除的容器
pred - 确定该擦除哪些元素的谓词

复杂度

线性。

示例

#include <experimental/string>
#include <iostream>
 
int main()
{
    std::string data { "1337!p_C00L_<a-_HACKER_!@s_{!s#@_w^o%r*d#42" };
 
    std::cout << "Original: \n\"" << data << "\"\n";
 
    auto crack = [](auto O) { return O < 0141 or 0172 < O; };
 
    std::experimental::erase_if(data, crack);
 
    std::cout << "After erase_if: \n\"" << data << "\"\n";
}

输出:

Original:
"1337!p_C00L_<a-_HACKER_!@s_{!s#@_w^o%r*d#42"
After erase_if:
"password"

参阅

移除满足特定判别标准的元素
(函数模板)
std::basic_string 擦除所有等于特定值的元素
(函数模板)