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 > |