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std::flat_map<Key,T,Compare,KeyContainer,MappedContainer>::contains

From cppreference.com
< cpp‎ | container‎ | flat map
 
 
 
 
bool contains( const Key& key ) const;
(1) (since C++23)
(constexpr since C++26)
template< class K >
bool contains( const K& x ) const;
(2) (since C++23)
(constexpr since C++26)
1) Checks if there is an element with key equivalent to key in the container.
2) Checks if there is an element with key that compares equivalent to x.
This overload participates in overload resolution only if Compare is transparent. It allows calling this function without constructing an instance of Key.

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