bsl::set::count

Synopses

Declared in <bslstl_set.h>

Return the number of elements equivalent to key (0 or 1).

size_type
count(key_type const& key) const;

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Return the number of elements equivalent to key.

template<class LOOKUP_KEY>
size_type
count(LOOKUP_KEY const& key) const
requires BloombergLP::bslmf::IsTransparentPredicate<COMPARATOR,
                                                   LOOKUP_KEY>::value;

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