Erase the element equivalent to key, if present.

Synopsis

Declared in <bslstl_unorderedset.h>

template<class t_KEY>
size_type
erase(t_KEY&& key)
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, t_KEY>::value &&
        BloombergLP::bslmf::IsTransparentPredicate<EQUAL,t_KEY>::value &&
        !is_convertible<BSLS_COMPILERFEATURES_FORWARD_REF(t_KEY),
                        iterator>::value &&
        !is_convertible<BSLS_COMPILERFEATURES_FORWARD_REF(t_KEY),
                        const_iterator>::value;

Description

Same as the preceding overload, using a transparent key type.

Return Value

1 if erased, otherwise 0

Parameters

Name

Description

key

key value to look up

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