Return true if this container has an element with key equivalent to key.

Synopsis

Declared in <bslstl_unorderedmultimap.h>

template<class LOOKUP_KEY>
bool
contains(LOOKUP_KEY const& key) const
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, LOOKUP_KEY>::value &&
            BloombergLP::bslmf::IsTransparentPredicate<EQUAL,
                                                       LOOKUP_KEY>::value;

Description

Return true if this unordered map contains an element whose key is equivalent to the specified key.

Return Value

true if present, otherwise false

Parameters

Name

Description

key

transparent key value to look up

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