std::erase, std::erase_if (std::vector)

 

C++

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Technical Specifications

 

Containers library

array (C++11)

vector

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list

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std::vector

Member functions

vector::vector

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Element access

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vector::beginvector::cbegin (C++11)

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vector::rbeginvector::crbegin (C++11)

vector::rendvector::crend (C++11)

Capacity

vector::empty

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Modifiers

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vector::erase

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Deduction guides(C++17)

 

Defined in header <vector>
template< class T, class Alloc, class U > void erase(std::vector<T,Alloc>& c, const U& value);	(1)	(since C++20)
template< class T, class Alloc, class Pred > void erase_if(std::vector<T,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) T, regardless of value category, and must not modify v. Thus, a parameter type of T&is not allowed, nor is T unless for T a move is equivalent to a copy (since C++11). ​

Complexity

Linear.

See also

removeremove_if

removes elements satisfying specific criteria (function template)