Erase elements from s that satisfy predicate.

Synopsis

Declared in <bslstl_unorderedset.h>

template<
    class KEY,
    class HASH,
    class EQUAL,
    class ALLOCATOR,
    class PREDICATE>
bsl::unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::size_type
erase_if(
    unordered_set<KEY, HASH, EQUAL, ALLOCATOR>& s,
    PREDICATE predicate);

Description

Erase all the elements in the specified unordered_set s that satisfy the specified predicate predicate. Return the number of elements erased.

Return Value

number of elements erased

Parameters

Name

Description

s

unordered set from which to erase

predicate

predicate selecting elements to erase

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