libstdc++-v3/testsuite/20_util/tuple/cons/constexpr-2.cc

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu++0x" }
   3
   4 // Copyright (C) 2010-2014 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 // 2 element tuple
  27 int main()
  28 {
  29   typedef std::tuple<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, std::move(i1) };
  42
  43   // 04: element move ctor, two element
  44   const int i2(510);
  45   const int i3(408);
  46   constexpr tuple_type t4 { std::move(i2), std::move(i3) };
  47
  48   // 05: value-type conversion constructor
  49   const int i4(650);
  50   const int i5(310);
  51   constexpr tuple_type t8(i4, i5);
  52
  53   // 06: pair conversion ctor
  54   test2.operator()<tuple_type, std::pair<int, int>>();
  55   test2.operator()<std::tuple<short, short>, std::pair<int, int>>();
  56   test2.operator()<tuple_type, std::pair<short, short>>();
  57
  58   // 07: different-tuple-type conversion constructor
  59   test2.operator()<tuple_type, std::tuple<short, short>>();
  60   test2.operator()<std::tuple<short, short>, tuple_type>();
  61
  62   return 0;
  63 }