bsl::unordered_set::erase

erase overloads

Synopses

Declared in <bslstl_unorderedset.h>

Erase the element at position.

unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::iterator
erase(const_iterator position);
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Erase the element equivalent to key, if present.

unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::size_type
erase(key_type const& key);
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Erase the element equivalent to key, if present.

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;
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Erase the elements in the half-open range [first, last)].

unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::iterator
erase(
    const_iterator first,
    const_iterator last);
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Return Value

  • iterator following the erased element
  • 1 if erased, otherwise 0
  • last

Parameters

NameDescription
positioniterator to the element to erase
keykey value to look up
firstbeginning of the range
lastend of the range (one past last)