argument_type typedef | std::unary_function< _Pair, _Pair::first_type > | |
operator()(_Pair &__x) const | std::_Select1st< _Pair > | [inline] |
operator()(const _Pair &__x) const | std::_Select1st< _Pair > | [inline] |
result_type typedef | std::unary_function< _Pair, _Pair::first_type > |