NAME¶

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

Synopsis¶

Defined in header <experimental/string>
template< class CharT, class Traits, class Alloc,
class Pred > (library fundamentals TS v2)
void erase_if( std::basic_string<CharT, Traits,
Alloc>& c, Pred pred );

Erases all elements that satisfy the predicate pred from the container. Equivalent
to c.erase(std::remove_if(c.begin(), c.end(), pred), c.end());.

Parameters¶

c - container from which to erase
pred - predicate that determines which elements should be erased

Complexity¶

Linear.

Example¶

// Run this code

#include <experimental/string>
#include <iomanip>
#include <iostream>

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

Output:¶

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

See also¶

remove removes elements satisfying specific criteria
remove_if (function template)
erase (std::basic_string) erases all elements equal to a specific value from a
(library fundamentals 2 TS) std::basic_string
(function template)

Category:¶

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