libstdc++-v3/testsuite/20_util/tuple/cons/constexpr-3.cc

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu++11" }
   3
   4 // Copyright (C) 2011-2016 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <memory>
  22 #include <testsuite_common_types.h>
  23
  24 #include <iostream>
  25
  26 // 3 element tuple
  27 int main()
  28 {
  29   typedef std::tuple<int, int, int> tuple_type;
  30
  31   // 01: default ctor
  32   __gnu_test::constexpr_default_constructible test1;
  33   test1.operator()<tuple_type>();
  34
  35   // 02: default copy ctor
  36   __gnu_test::constexpr_single_value_constructible test2;
  37   test2.operator()<tuple_type, tuple_type>();
  38
  39   // 03: element move ctor, single element
  40   const int i1(415);
  41   constexpr tuple_type t2 { 44, 55, std::move(i1) };
  42
  43   // 04: element move ctor, three element
  44   const int i2(510);
  45   const int i3(408);
  46   const int i4(650);
  47   constexpr tuple_type t4 { std::move(i2), std::move(i3), std::move(i4) };
  48
  49   // 05: value-type conversion constructor
  50   const int i5(310);
  51   const int i6(310);
  52   const int i7(310);
  53   constexpr tuple_type t8(i5, i6, i7);
  54
  55   // 06: different-tuple-type conversion constructor
  56   test2.operator()<tuple_type, std::tuple<short, short, short>>();
  57   test2.operator()<std::tuple<short, short, short>, tuple_type>();
  58
  59   return 0;
  60 }