/** Swap the content of two cache_map instances. * * @param m1 a cache_map * @param m2 another cache_map */ friend inline void swap( cache_map<Key,T,HashFunction,KeyEqual,DiscardFunction,Allocator>& m1, cache_map<Key,T,HashFunction,KeyEqual,DiscardFunction,Allocator>& m2 ) { m1.swap( m2 ); }