Return whether this unordered map contains an equivalent key.

Synopsis

Declared in <bslstl_unorderedmap.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.

Note: implemented inline due to Sun CC compilation error

Return Value

true if present, otherwise false

Parameters

Name

Description

key

key to look up

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