libstdc++-v3/testsuite/25_algorithms/replace_copy_if/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 // 25.2.4 replace_copy_if
  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::output_iterator_wrapper;
  27
  28 typedef test_container<int, input_iterator_wrapper> Icontainer;
  29 typedef test_container<int, output_iterator_wrapper> Ocontainer;
  30 int array[] = {0, 0, 0, 1, 0, 1};
  31
  32 bool
  33 pred(int i)
  34 { return i == 1; }
  35
  36 void
  37 test1()
  38 {
  39   int out[1];
  40   Icontainer in_con(array, array);
  41   Ocontainer out_con(out, out);
  42   VERIFY(std::replace_copy_if(in_con.begin(), in_con.end(),
  43                               out_con.begin(), pred, 1).ptr == out);
  44 }
  45
  46 void
  47 test2()
  48 {
  49   int out[1];
  50   Icontainer in_con(array, array + 1);
  51   Ocontainer out_con(out, out + 1);
  52   VERIFY(std::replace_copy_if(in_con.begin(), in_con.end(),
  53                               out_con.begin(), pred, 2).ptr == out + 1);
  54   VERIFY(out[0] == 0);
  55 }
  56
  57 void
  58 test3()
  59 {
  60   int out[6];
  61   Icontainer in_con(array, array + 6);
  62   Ocontainer out_con(out, out + 6);
  63   VERIFY(std::replace_copy_if(in_con.begin(), in_con.end(),
  64                               out_con.begin(), pred, 2).ptr == out + 6);
  65   VERIFY(out[0] == 0 && out[1] == 0 && out[2] == 0 &&
  66          out[3] == 2 && out[4] == 0 && out[5] == 2);
  67 }
  68
  69 int
  70 main()
  71 {
  72   test1();
  73   test2();
  74   test3();
  75 }