libstdc++-v3/testsuite/25_algorithms/unique_copy/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 // 25.2.8 [lib.alg.unique]
  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 __gnu_test::forward_iterator_wrapper;
  27 using __gnu_test::output_iterator_wrapper;
  28 using std::unique_copy;
  29
  30 typedef test_container<int, input_iterator_wrapper> Icontainer;
  31 typedef test_container<int, forward_iterator_wrapper> Fcontainer;
  32 typedef test_container<int, output_iterator_wrapper> Ocontainer;
  33
  34 int array1[] = {0, 0, 0, 1, 1, 1};
  35 int array2[2];
  36
  37 void
  38 test1()
  39 {
  40   Icontainer con1(array1, array1);
  41   Ocontainer con2(array2, array2);
  42   VERIFY( unique_copy(con1.begin(), con1.end(), con2.begin()).ptr == array2 );
  43 }
  44
  45 void
  46 test2()
  47 {
  48   Icontainer con1(array1, array1 + 6);
  49   Ocontainer con2(array2, array2 + 2);
  50   VERIFY( unique_copy(con1.begin(), con1.end(), con2.begin()).ptr
  51           == array2 + 2 );
  52   VERIFY( array2[0] == 0 && array2[1] == 1 );
  53 }
  54
  55 void
  56 test3()
  57 {
  58   Icontainer con1(array1, array1);
  59   Fcontainer con2(array2, array2);
  60   VERIFY( unique_copy(con1.begin(), con1.end(), con2.begin()).ptr == array2 );
  61 }
  62
  63 void
  64 test4()
  65 {
  66   Icontainer con1(array1, array1 + 6);
  67   Fcontainer con2(array2, array2 + 2);
  68   VERIFY( unique_copy(con1.begin(), con1.end(), con2.begin()).ptr
  69           == array2 + 2 );
  70   VERIFY( array2[0] == 0 && array2[1] == 1 );
  71 }
  72
  73 int
  74 main()
  75 {
  76   test1();
  77   test2();
  78   test3();
  79   test4();
  80 }