libstdc++-v3/testsuite/20_util/pair/cons/constexpr.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2010-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <memory>
  21 #include <testsuite_common_types.h>
  22
  23 int main()
  24 {
  25   typedef std::pair<int, int> pair_type;
  26
  27   __gnu_test::constexpr_default_constructible test1;
  28   test1.operator()<pair_type>();
  29
  30   __gnu_test::constexpr_single_value_constructible test2;
  31   test2.operator()<pair_type, pair_type>();
  32   test2.operator()<pair_type, std::pair<short, short>>();
  33
  34   // test 3
  35   const int i1(129);
  36   const int i2(6);
  37   constexpr pair_type p0(i1, i2);
  38
  39   // test 4
  40   constexpr int i(999);
  41   constexpr pair_type p1 { 44, 90 };
  42   constexpr pair_type p2 { std::move(p1.first),  i };
  43   constexpr pair_type p3 { i, std::move(p1.second) };
  44
  45   constexpr pair_type p5 { 444, 904 };
  46   constexpr pair_type p6 { std::move(p5.first), std::move(p5.second) };
  47
  48   constexpr std::pair<char, char> p8 { 'a', 'z' };
  49   constexpr pair_type p9(std::move(p8));
  50
  51   constexpr pair_type p10(std::move(p0));
  52
  53   return 0;
  54 }