bsl::unordered_map<basic_string<char>, Json, TransparentHash, TransparentEqualTo>::equal_range

Synopses

Declared in <bslstl_unorderedmap.h>

Return a pair of iterators providing modifiable access to the sequence of value_type objects in this unordered map having the specified key, where the first iterator is positioned at the start of the sequence, and the second is positioned one past the end of the sequence. If this unordered map contains no value_type object having key, then the two returned iterators will have the same value, end(). Note that since an unordered map maintains unique keys, the range will contain at most one element.

pair<iterator, iterator>
equal_range(key_type const& key);

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Return a pair of iterators providing non-modifiable access to the sequence of value_type objects in this unordered map having the specified key, where the first iterator is positioned at the start of the sequence, and the second is positioned one past the end of the sequence. If this unordered map contains no value_type object having key, then the two returned iterators will have the same value, end(). Note that since an unordered map maintains unique keys, the range will contain at most one element.

pair<const_iterator, const_iterator>
equal_range(key_type const& key) const;

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Return a pair of iterators providing modifiable access to the sequence of value_type objects in this unordered map having the specified key, where the first iterator is positioned at the start of the sequence, and the second is positioned one past the end of the sequence. If this unordered map contains no value_type object having key, then the two returned iterators will have the same value, end(). The behavior is undefined unless key is equivalent to at most one key in this unordered map. Note that since an unordered map maintains unique keys, the range will contain at most one element.

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

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Return a pair of iterators providing non-modifiable access to the sequence of value_type objects in this unordered map with a key equivalent to specified key, where the first iterator is positioned at the start of the sequence, and the second is positioned one past the end of the sequence. If this unordered map contains no value_type objects having a key equivalent to key, then the two returned iterators will have the same value, end(). The behavior is undefined unless key is equivalent to at most one key in this unordered map. Note that since an unordered map maintains unique keys, the range will contain at most one element.

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

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