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std::erase, std::erase_if (std::basic_string)

Defined in header <string>

Defined in header `<string>`
template< class CharT, class Traits, class Alloc, class U > void erase(std::basic_string<CharT,Traits,Alloc>& c, const U& value);	(1)	(since C++20)
template< class CharT, class Traits, class Alloc, class Pred > void erase_if(std::basic_string<CharT,Traits,Alloc>& c, Pred pred);	(2)	(since C++20)

template< class CharT, class Traits, class Alloc, class U >
void erase(std::basic_string<CharT,Traits,Alloc>& c, const U& value);

(1)

(since C++20)

template< class CharT, class Traits, class Alloc, class Pred >
void erase_if(std::basic_string<CharT,Traits,Alloc>& c, Pred pred);

(2)

(since C++20)

1) Erases all elements that compare equal to value from the container. Equivalent to c.erase(std::remove(c.begin(), c.end(), value), c.end());

2) 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
value	-	value to be removed
pred	-	unary predicate which returns `true` if the element should be erased. The expression `pred(v)` must be convertible to `bool` for every argument `v` of type (possibly const) `CharT`, regardless of value category, and must not modify `v`. Thus, a parameter type of `CharT&`is not allowed, nor is `CharT` unless for `CharT` a move is equivalent to a copy (since C++11).

Complexity

Linear.

W3cubDocs

std::erase, std::erase_if (std::basic_string)

Parameters

Complexity

Example

See also