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

   1 // Copyright (C) 2005 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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // 25.1.6 count_if
  20
  21 #include <algorithm>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_iterators.h>
  24
  25 using __gnu_test::test_container;
  26 using __gnu_test::input_iterator_wrapper;
  27
  28 typedef test_container<int, input_iterator_wrapper> Container;
  29 int array[] = {0, 0, 0, 1, 0, 1};
  30
  31 bool
  32 predicate(const int& i)
  33 { return i == 1; }
  34
  35 void
  36 test1()
  37 {
  38   Container con(array, array);
  39   VERIFY(std::count_if(con.begin(), con.end(),
  40                        predicate) == 0);
  41 }
  42
  43 void
  44 test2()
  45 {
  46   Container con(array, array + 1);
  47   VERIFY(std::count_if(con.begin(), con.end(),
  48                        predicate) == 0);
  49 }
  50
  51 void
  52 test3()
  53 {
  54   Container con(array, array + 6);
  55   VERIFY(std::count_if(con.begin(), con.end(),
  56                        predicate) == 2);
  57 }
  58
  59 int
  60 main()
  61 {
  62   test1();
  63   test2();
  64   test3();
  65 }