bsl::unordered_set<ManagedAttribute, AttributeHash>::erase

Synopses

Declared in <bslstl_unorderedset.h>

Remove from this unordered set the value_type object at the specified position, and return an iterator referring to the element immediately following the removed element, or to the past-the-end position if the removed element was the last element in the sequence of elements maintained by this set. This method invalidates only iterators and references to the removed element and previously saved values of the end() iterator, and preserves the relative order of the elements not removed. The behavior is undefined unless position refers to a value_type object in this unordered set.

iterator
erase(const_iterator position);

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Remove from this set the value_type object that is equivalent to the specified key, if such an entry exists, and return 1; otherwise, if there is no value_type object that is equivalent to key, return 0 with no other effect. This method invalidates only iterators and references to the removed element and previously saved values of the end() iterator, and preserves the relative order of the elements not removed.

size_type
erase(key_type const& key);

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

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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Remove from this set the value_type objects starting at the specified first position up to, but including the specified last position, and return last. This method invalidates only iterators and references to the removed element and previously saved values of the end() iterator, and preserves the relative order of the elements not removed. The behavior is undefined unless first and last either refer to elements in this set or are the end iterator, and the first position is at or before the last position in the sequence provided by this container.

iterator
erase(
    const_iterator first,
    const_iterator last);

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