// 2001-06-18 Benjamin Kosnik // Copyright (C) 2001-2024 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . // 20.2.2 Pairs #include #include class gnu_obj { int i; public: gnu_obj(int arg = 0): i(arg) { } bool operator==(const gnu_obj& rhs) const { return i == rhs.i; } bool operator<(const gnu_obj& rhs) const { return i < rhs.i; } }; template struct gnu_t { bool b; public: gnu_t(bool arg = 0): b(arg) { } bool operator==(const gnu_t& rhs) const { return b == rhs.b; } bool operator<(const gnu_t& rhs) const { return int(b) < int(rhs.b); } }; // heterogeneous void test01() { std::pair p_bl_1(true, 433); std::pair p_bl_2 = std::make_pair(true, 433); VERIFY( p_bl_1 == p_bl_2 ); VERIFY( !(p_bl_1 < p_bl_2) ); std::pair p_sf_1("total enlightenment", 433.00); std::pair p_sf_2 = std::make_pair("total enlightenment", 433.00); VERIFY( p_sf_1 == p_sf_2 ); VERIFY( !(p_sf_1 < p_sf_2) ); std::pair p_sg_1("enlightenment", gnu_obj(5)); std::pair p_sg_2 = std::make_pair("enlightenment", gnu_obj(5)); VERIFY( p_sg_1 == p_sg_2 ); VERIFY( !(p_sg_1 < p_sg_2) ); std::pair, gnu_obj> p_st_1(gnu_t(false), gnu_obj(5)); std::pair, gnu_obj> p_st_2 = std::make_pair(gnu_t(false), gnu_obj(5)); VERIFY( p_st_1 == p_st_2 ); VERIFY( !(p_st_1 < p_st_2) ); } int main() { test01(); return 0; }