libstdc++-v3/testsuite/23_containers/list/modifiers/swap/1.cc

   1 // Copyright (C) 2004 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 #include <list>
  20 #include <testsuite_hooks.h>
  21
  22 struct T { int i; };
  23
  24 int swap_calls;
  25
  26 namespace std
  27 {
  28   template<>
  29     void
  30     list<T, allocator<T> >::swap(list<T, allocator<T> >&)
  31     { ++swap_calls; }
  32 }
  33
  34 // Should use list specialization for swap.
  35 void test01()
  36 {
  37   bool test __attribute__((unused)) = true;
  38   std::list<T> A;
  39   std::list<T> B;
  40   swap_calls = 0;
  41   std::swap(A, B);
  42   VERIFY(1 == swap_calls);
  43 }
  44
  45 // Should use list specialization for swap.
  46 void test02()
  47 {
  48   bool test __attribute__((unused)) = true;
  49   using namespace std;
  50   list<T> A;
  51   list<T> B;
  52   swap_calls = 0;
  53   swap(A, B);
  54   VERIFY(1 == swap_calls);
  55 }
  56
  57 #if !__GXX_WEAK__ && _MT_ALLOCATOR_H
  58 template class __gnu_cxx::__mt_alloc<std::_List_node<T> >;
  59 #endif
  60
  61 // See c++/13658 for background info.
  62 int main()
  63 {
  64   test01();
  65   test02();
  66   return 0;
  67 }