std::experimental::erase_if (std::basic_string)
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< cpp | experimental
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Merged into ISO C++ The functionality described on this page was merged into the mainline ISO C++ standardas of 11/2018, see std::erase_if (since C++20)
Defined in header
<experimental/string>
template< class CharT, class Traits, class Alloc, class Pred >
void erase_if( std::basic_string <CharT, Traits, Alloc>& c, Pred 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());.
Contents
[edit] Parameters
c
-
container from which to erase
pred
-
predicate that determines which elements should be erased
[edit] Complexity
Linear.
[edit] 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"[edit] See also
(library fundamentals 2 TS)
(function template) [edit]