23 Containers library [containers]

23.4 Associative containers [associative]

23.4.2 Header <map> synopsis [associative.map.syn]

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#include <compare> / see [compare.syn] #include <initializer_list> / see [initializer.list.syn] namespace std { / [map], class template map template<class Key, class T, class Compare = less<Key>, class Allocator = allocator<pair<const Key, T>> class map; template<class Key, class T, class Compare, class Allocator> constexpr bool operator=(const map<Key, T, Compare, Allocator>& x, const map<Key, T, Compare, Allocator>& y); template<class Key, class T, class Compare, class Allocator> constexpr synth-three-way-result<pair<const Key, T>> operator<=>(const map<Key, T, Compare, Allocator>& x, const map<Key, T, Compare, Allocator>& y); template<class Key, class T, class Compare, class Allocator> constexpr void swap(map<Key, T, Compare, Allocator>& x, map<Key, T, Compare, Allocator>& y) noexcept(noexcept(x.swap(y)); / [map.erasure], erasure for map template<class Key, class T, class Compare, class Allocator, class Predicate> constexpr typename map<Key, T, Compare, Allocator>::size_type erase_if(map<Key, T, Compare, Allocator>& c, Predicate pred); / [multimap], class template multimap template<class Key, class T, class Compare = less<Key>, class Allocator = allocator<pair<const Key, T>> class multimap; template<class Key, class T, class Compare, class Allocator> constexpr bool operator=(const multimap<Key, T, Compare, Allocator>& x, const multimap<Key, T, Compare, Allocator>& y); template<class Key, class T, class Compare, class Allocator> constexpr synth-three-way-result<pair<const Key, T>> operator<=>(const multimap<Key, T, Compare, Allocator>& x, const multimap<Key, T, Compare, Allocator>& y); template<class Key, class T, class Compare, class Allocator> constexpr void swap(multimap<Key, T, Compare, Allocator>& x, multimap<Key, T, Compare, Allocator>& y) noexcept(noexcept(x.swap(y)); / [multimap.erasure], erasure for multimap template<class Key, class T, class Compare, class Allocator, class Predicate> constexpr typename multimap<Key, T, Compare, Allocator>::size_type erase_if(multimap<Key, T, Compare, Allocator>& c, Predicate pred); namespace pmr { template<class Key, class T, class Compare = less<Key>> using map = std::map<Key, T, Compare, polymorphic_allocator<pair<const Key, T>>; template<class Key, class T, class Compare = less<Key>> using multimap = std::multimap<Key, T, Compare, polymorphic_allocator<pair<const Key, T>>; } }

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