Erase all the elements in the specified unordered_multiset ms that satisfy the specified predicate predicate. Return the number of elements erased.

Synopsis

Declared in <bslstl_unorderedmultiset.h>

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

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