old-autovect-branch/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 25.3.1.4 [lib.partial.sort.copy]
  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::random_access_iterator_wrapper;
  27 using __gnu_test::input_iterator_wrapper;
  28 using std::partial_sort_copy;
  29
  30 typedef test_container<int, random_access_iterator_wrapper> Rcontainer;
  31 typedef test_container<int, input_iterator_wrapper> Icontainer;
  32
  33 void
  34 test1()
  35 {
  36   int array[]={2,1,0};
  37   Rcontainer rcon1(array, array);
  38   Rcontainer rcon2(array, array + 2);
  39   Icontainer icon1(array, array);
  40   Icontainer icon2(array, array + 2);
  41   partial_sort_copy(icon1.begin(), icon1.end(), rcon1.begin(), rcon1.end());
  42   partial_sort_copy(icon1.begin(), icon1.end(), rcon2.begin(), rcon2.end());
  43   partial_sort_copy(icon2.begin(), icon2.end(), rcon1.begin(), rcon1.end());
  44   partial_sort_copy(icon2.begin(), icon2.end(), rcon2.begin(), rcon2.end());
  45 }
  46
  47 void
  48 test2()
  49 {
  50   int array1[] = {4, 3, 2, 1, 0};
  51   int array2[5];
  52   Icontainer icon(array1, array1 + 5);
  53   Rcontainer rcon(array2, array2 + 5);
  54   partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
  55   VERIFY(array2[0] == 0 && array2[1] == 1 && array2[2] == 2 &&
  56          array2[3] == 3 && array2[4] == 4);
  57 }
  58
  59 void
  60 test3()
  61 {
  62   int array1[] = {4, 0, 1, 3, 2};
  63   int array2[5];
  64   Icontainer icon(array1, array1 + 5);
  65   Rcontainer rcon(array2, array2 + 2);
  66   partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
  67   VERIFY(array2[0] == 0 && array2[1] == 1);
  68 }
  69
  70 void
  71 test4()
  72 {
  73   int array1[] = {4, 1, 3, 2, 0};
  74   int array2[20];
  75   Icontainer icon(array1, array1 + 5);
  76   Rcontainer rcon(array2, array2 + 20);
  77   partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
  78   VERIFY(array2[0] == 0 && array2[1] == 1 && array2[2] == 2 &&
  79          array2[3] == 3 && array2[4] == 4);
  80 }
  81
  82 int
  83 main()
  84 {
  85   test1();
  86   test2();
  87   test3();
  88   test4();
  89 }