libstdc++-v3/testsuite/25_algorithms/make_heap/movable.cc

   1 // Copyright (C) 2017-2019 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <functional>
  21 #include <algorithm>
  22 #include <iterator>
  23
  24 void
  25 test01()
  26 {
  27   int i[] = { 1, 2, 3, 4 };
  28   std::function<bool(int, int)> f = std::less<int>{};
  29   // If this uses a moved-from std::function we'll get an exception:
  30   std::make_heap(std::begin(i), std::end(i), f);
  31   std::sort_heap(std::begin(i), std::end(i), f);
  32 }
  33
  34 int
  35 main()
  36 {
  37   test01();
  38 }