libstdc++-v3/testsuite/23_containers/list/operations/2.h

   1 // Copyright (C) 2001-2020 Free Software Foundation, Inc.
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   3 // This file is part of the GNU ISO C++ Library.  This library is free
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   5 // terms of the GNU General Public License as published by the
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   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
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  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 #include <testsuite_hooks.h>
  21
  22 // splice(p, x, i) + remove_if + operator==
  23 template<typename _Tp>
  24 void
  25 operations02()
  26 {
  27   typedef _Tp list_type;
  28   typedef typename list_type::iterator iterator;
  29
  30   const int A[] = {1, 2, 3, 4, 5};
  31   const int B[] = {2, 1, 3, 4, 5};
  32   const int C[] = {1, 3, 4, 5, 2};
  33   const int N = sizeof(A) / sizeof(int);
  34   list_type list0201(A, A + N);
  35   list_type list0202(A, A + N);
  36   list_type list0203(B, B + N);
  37   list_type list0204(C, C + N);
  38   iterator i = list0201.begin();
  39
  40   // result should be unchanged
  41   list0201.splice(list0201.begin(), list0201, i);
  42   VERIFY(list0201 == list0202);
  43
  44   // result should be [2 1 3 4 5]
  45   ++i;
  46   list0201.splice(list0201.begin(), list0201, i);
  47   VERIFY(list0201 != list0202);
  48   VERIFY(list0201 == list0203);
  49
  50   // result should be [1 3 4 5 2]
  51   list0201.splice(list0201.end(), list0201, i);
  52   VERIFY(list0201 == list0204);
  53 }