Executes init-statement once, then executes statement and iteration_expression repeatedly

bool empty() const;

bool try_lock();

Defined in header

Defined in header

template <class... Args> pair<iterator, bool> try_emplace(const

Defined in header

template< class Key, class Hash, class KeyEqual, class Allocator > bool operator==(

Defined in header

size_type bucket( const Key& key ) const;