libstdc++-v3/testsuite/20_util/pair/44487.cc

   1 // { dg-options "-std=gnu++0x" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2010-2013 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 <utility>
  22
  23 int x, y;
  24
  25 std::pair<int&, int&>
  26 foo1()
  27 {
  28   std::pair<int&, int&> blah(x, y);
  29   return blah;
  30 }
  31
  32 std::pair<int&, int&>
  33 foo2()
  34 {
  35   const std::pair<int&, int&> blah(x, y);
  36   return blah;
  37 }
  38
  39 std::pair<int&, int&>
  40 foo3()
  41 {
  42   std::pair<int&, int&> blah(x, y);
  43   return std::pair<int&, int&>(std::move(blah));
  44 }
  45
  46 std::pair<int&, int&>
  47 foo4()
  48 {
  49   const std::pair<int&, int&> blah(x, y);
  50   return std::pair<int&, int&>(std::move(blah));
  51 }