libstdc++-v3/testsuite/25_algorithms/includes/1.cc

   1 // Copyright (C) 2005-2025 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 // 25.3.5.1 [lib.includes]
  19
  20 #include <algorithm>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_iterators.h>
  23
  24 using __gnu_test::test_container;
  25 using __gnu_test::input_iterator_wrapper;
  26 using std::includes;
  27
  28 typedef test_container<int, input_iterator_wrapper> Container;
  29
  30 void
  31 test1()
  32 {
  33   int array[] = {0};
  34   Container con1(array, array);
  35   Container con2(array, array);
  36   VERIFY(includes(con1.begin(), con1.end(), con2.begin(), con2.end()));
  37 }
  38
  39 void
  40 test2()
  41 {
  42   int array[] = {0, 1};
  43   Container con1(array, array);
  44   Container con2(array, array + 2);
  45   VERIFY(!includes(con1.begin(), con1.end(), con2.begin(), con2.end()));
  46 }
  47
  48 void
  49 test3()
  50 {
  51   int array[] = {0, 1};
  52   Container con1(array, array + 2);
  53   Container con2(array, array);
  54   VERIFY(includes(con1.begin(), con1.end(), con2.begin(), con2.end()));
  55 }
  56
  57 void
  58 test4()
  59 {
  60   int array1[] = {1, 2, 3, 4, 6, 8, 9};
  61   int array2[] = {2, 4, 6, 8};
  62   Container con1(array1, array1 + 7);
  63   Container con2(array2, array2 + 4);
  64   VERIFY(includes(con1.begin(), con1.end(), con2.begin(), con2.end()));
  65 }
  66
  67 void
  68 test5()
  69 {
  70   int array1[] = {1, 2, 3, 5};
  71   int array2[] = {2, 4, 6, 8};
  72   Container con1(array1, array1 + 4);
  73   Container con2(array2, array2 + 4);
  74   VERIFY(!includes(con1.begin(), con1.end(), con2.begin(), con2.end()));
  75 }
  76
  77 int main()
  78 {
  79   test1();
  80   test2();
  81   test3();
  82   test4();
  83   test5();
  84 }