Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/20_util/pair/constexpr_assign.cc @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// Copyright (C) 2019-2020 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 // <http://www.gnu.org/licenses/>. // { dg-options "-std=gnu++2a" } // { dg-do compile { target c++2a } } #include <utility> #include <tuple> constexpr int test01(int i, int j) { using T = std::tuple<int>; std::pair<int, int> p0, p1, p2, p3; std::pair<int, int> pij(std::piecewise_construct, T(i), T(j)); p0 = pij; p1 = std::move(pij); std::pair<long, long> pijl(i, j); p2 = pijl; p3 = std::move(pijl); return p0.first + p0.second + p1.first + p1.second + p2.first + p2.second + p3.first + p3.second; } static_assert( test01(3, 100) == 412 );