libstdc++-v3/testsuite/25_algorithms/binary_search/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 // 25.3.3.4 [lib.binary.search]
  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::forward_iterator_wrapper;
  27 using std::binary_search;
  28
  29 typedef test_container<int, forward_iterator_wrapper> Container;
  30
  31 void
  32 test1()
  33 {
  34   int array[] = {0};
  35   Container con(array, array);
  36   VERIFY(!binary_search(con.begin(), con.end(), 1));
  37 }
  38
  39 void
  40 test2()
  41 {
  42   int array[] = {0, 2, 4, 6, 8};
  43   Container con(array, array + 5);
  44   for(int i = 0; i < 10; i += 2)
  45     VERIFY(binary_search(con.begin(), con.end(), i));
  46   for(int i = -1; i < 11; i += 2)
  47     VERIFY(!binary_search(con.begin(), con.end(), i));
  48 }
  49
  50 int main()
  51 {
  52   test1();
  53   test2();
  54 }