libstdc++-v3/testsuite/23_containers/list/debug/invalidation/4.cc

   1 // List iterator invalidation tests
   2
   3 // Copyright (C) 2003-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <debug/list>
  21 #include <iterator>
  22 #include <testsuite_hooks.h>
  23
  24 // Splice
  25 void test04()
  26 {
  27   using std::advance;
  28
  29   typedef __gnu_debug::list<int>  list_type;
  30
  31   list_type l1(10, 17);
  32   list_type l2(10, 42);
  33
  34   list_type::iterator start2 = l2.begin();
  35   list_type::iterator end2 = start2;
  36   advance(end2, 5);
  37   list_type::iterator after2 = end2;
  38   advance(after2, 2);
  39
  40   l1.splice(l1.begin(), l2, start2, end2);
  41   VERIFY(start2._M_dereferenceable());
  42   VERIFY(end2._M_dereferenceable());
  43   VERIFY(after2._M_dereferenceable());
  44   VERIFY(start2._M_attached_to(&l1));
  45   VERIFY(end2._M_attached_to(&l2));
  46   VERIFY(after2._M_attached_to(&l2));
  47 }
  48
  49 int main()
  50 {
  51   test04();
  52   return 0;
  53 }