libstdc++-v3/testsuite/tr1/3_function_objects/function/63840.cc

   1 // Copyright (C) 2014-2016 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 #include <tr1/functional>
  19 #include <stdexcept>
  20 #include <testsuite_hooks.h>
  21
  22 struct functor
  23 {
  24   functor() : copies(0) { }
  25
  26   functor(const functor& f)
  27   : copies(f.copies + 1)
  28   {
  29     if (copies > 1)
  30       throw std::runtime_error("functor");
  31   }
  32
  33   void operator()() const { }
  34
  35   int copies;
  36 };
  37
  38
  39 void
  40 test01()
  41 {
  42   std::tr1::function<void()> f = functor();
  43   try {
  44     std::tr1::function<void()> g = f;
  45   } catch (const std::runtime_error& e) {
  46     return;
  47   }
  48   VERIFY(false);
  49 }
  50
  51 int
  52 main()
  53 {
  54   test01();
  55 }