void push_front( const T& value );

(1)

size_type size() const;

void swap( unordered_set& other );

pos_type tellg();

result_type min() const;

template< class UIntType, size_t w, size_t n, size_t

param_type param() const; (1)

param_type param() const; (1)

template< class CharT, class Traits, class ResultType > std::basic_ostream<CharT