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

   1 // Copyright (C) 2005-2020 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 // 25.3.8 [lib.alg.lex.comparison]
  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
  27 typedef test_container<int, input_iterator_wrapper> Container;
  28 int array1[] = {0, 1};
  29 int array2[] = {1, 0};
  30 int array3[] = {1, 0, 1};
  31
  32 void
  33 test1()
  34 {
  35   Container con1(array1, array1);
  36   Container con2(array2, array2);
  37   VERIFY( !std::lexicographical_compare(con1.begin(), con1.end(),
  38                                         con2.begin(), con2.end()) );
  39 }
  40
  41 void
  42 test2()
  43 {
  44   Container con1(array1, array1 + 2);
  45   Container con2(array2, array2 + 2);
  46   VERIFY( std::lexicographical_compare(con1.begin(), con1.end(),
  47                                        con2.begin(), con2.end()) );
  48 }
  49
  50 void
  51 test3()
  52 {
  53   Container con1(array1, array1 + 2);
  54   Container con2(array2, array2 + 2);
  55   VERIFY( !std::lexicographical_compare(con2.begin(), con2.end(),
  56                                         con1.begin(), con1.end()) );
  57 }
  58
  59 void
  60 test4()
  61 {
  62   Container con3(array3, array3 + 3);
  63   Container con2(array2, array2 + 2);
  64   VERIFY( std::lexicographical_compare(con2.begin(), con2.end(),
  65                                        con3.begin(), con3.end()) );
  66 }
  67
  68 void
  69 test5()
  70 {
  71   Container con3(array3, array3 + 3);
  72   Container con2(array2, array2 + 2);
  73   VERIFY( !std::lexicographical_compare(con3.begin(), con3.end(),
  74                                         con2.begin(), con2.end()) );
  75 }
  76
  77 int
  78 main()
  79 {
  80   test1();
  81   test2();
  82   test3();
  83   test4();
  84   test5();
  85 }