libstdc++-v3/testsuite/23_containers/list/operations/35969.cc

   1 // Copyright (C) 2008-2021 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 // 23.2.2.4 list operations [lib.list.ops]
  19
  20 // NB: This issue affected only debug-mode.
  21
  22 #include <list>
  23 #include <functional>
  24
  25 // libstdc++/35969
  26 void test01()
  27 {
  28   {
  29     std::list<int> list1;
  30     std::list<int> list2;
  31
  32     for(int i = 0; i < 10; ++i)
  33       {
  34         list1.push_back(i);
  35         list2.push_back(10 - i);
  36       }
  37
  38     list1.sort();
  39     list2.sort();
  40
  41     std::list<int>::iterator node_of_interest = list2.begin();
  42
  43     list1.splice(list1.begin(), list2, node_of_interest);
  44     list2.splice(list2.begin(), list1, node_of_interest);
  45
  46     list1.merge(list2);
  47
  48     list2.splice(list2.begin(), list1, node_of_interest);
  49   }
  50
  51   {
  52     std::list<int> list1;
  53     std::list<int> list2;
  54
  55     for(int i = 0; i < 10; ++i)
  56       {
  57         list1.push_back(i);
  58         list2.push_back(10 - i);
  59       }
  60
  61     list1.sort();
  62     list2.sort();
  63
  64     std::list<int>::iterator node_of_interest = list2.begin();
  65
  66     list1.splice(list1.begin(), list2, node_of_interest);
  67     list2.splice(list2.begin(), list1, node_of_interest);
  68
  69     list1.merge(list2, std::less<int>());
  70
  71     list2.splice(list2.begin(), list1, node_of_interest);
  72   }
  73 }
  74
  75 int main()
  76 {
  77   test01();
  78   return 0;
  79 }