libstdc++-v3/testsuite/25_algorithms/heap/moveable.cc

   1 // Copyright (C) 2005-2021 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 // { dg-options "-DITERATIONS=5" { target simulator } }
  19 // { dg-do run { target c++11 } }
  20
  21 // 25.3.6 Heap operations [lib.alg.heap.operations]
  22
  23 #undef _GLIBCXX_CONCEPT_CHECKS
  24
  25 #include <algorithm>
  26 #include <testsuite_hooks.h>
  27 #include <testsuite_iterators.h>
  28 #include <testsuite_rvalref.h>
  29
  30 #ifndef ITERATIONS
  31 #define ITERATIONS 9
  32 #endif
  33
  34 using __gnu_test::test_container;
  35 using __gnu_test::random_access_iterator_wrapper;
  36 using __gnu_test::rvalstruct;
  37
  38 typedef test_container<rvalstruct, random_access_iterator_wrapper> container;
  39 typedef test_container<int, random_access_iterator_wrapper> container_ref;
  40
  41 void
  42 check_make(int* array, int length)
  43 {
  44   rvalstruct makeheap[9];
  45   int        makeheap_ref[9];
  46   std::copy(array, array + length, makeheap);
  47   std::copy(array, array + length, makeheap_ref);
  48   container makecon(makeheap, makeheap + length);
  49   container_ref makecon_ref(makeheap_ref, makeheap_ref + length);
  50   std::make_heap(makecon.begin(), makecon.end());
  51   std::make_heap(makecon_ref.begin(), makecon_ref.end());
  52   for (int z = 0; z < length; ++z)
  53     VERIFY( makeheap[z] == makeheap_ref[z] );
  54   VERIFY( std::__is_heap(makecon.begin(), makecon.end()) );
  55   for (int z = 0; z < length; ++z)
  56     VERIFY( makeheap[z].valid );
  57 }
  58
  59 void
  60 check_pop(int* array, int length)
  61 {
  62   rvalstruct popheap[9];
  63   int        popheap_ref[9];
  64   std::copy(array, array + length, popheap);
  65   std::copy(array, array + length, popheap_ref);
  66   container popcon(popheap, popheap + length);
  67   container_ref popcon_ref(popheap_ref, popheap_ref + length);
  68   std::pop_heap(popcon.begin(), popcon.end());
  69   std::pop_heap(popcon_ref.begin(), popcon_ref.end());
  70   for (int z = 0; z < length; ++z)
  71     VERIFY( popheap[z] == popheap_ref[z] );
  72   VERIFY( (std::__is_heap(popheap, popheap + length - 1)) );
  73   for (int z = 0; z < length; ++z)
  74     VERIFY( popheap[z].val <= popheap[length-1].val && popheap[z].valid );
  75 }
  76
  77 void
  78 check_sort(int* array, int length)
  79 {
  80   rvalstruct sortheap[9];
  81   int        sortheap_ref[9];
  82   std::copy(array, array + length, sortheap);
  83   std::copy(array, array + length, sortheap_ref);
  84   container sortcon(sortheap, sortheap + length);
  85   container_ref sortcon_ref(sortheap_ref, sortheap_ref + length);
  86   std::sort_heap(sortcon.begin(), sortcon.end());
  87   std::sort_heap(sortcon_ref.begin(), sortcon_ref.end());
  88   for (int z = 0; z < length; ++z)
  89     VERIFY( sortheap[z] == sortheap_ref[z] );
  90   for (int z = 0; z < length - 1; ++z)
  91     VERIFY( sortheap[z].val <= sortheap[z + 1].val && sortheap[z].valid );
  92   VERIFY( sortheap[length - 1].valid );
  93 }
  94
  95 void
  96 check_push(int* array, int pushval, int length)
  97 {
  98   rvalstruct pushheap[10];
  99   int        pushheap_ref[10];
 100   std::copy(array, array + length, pushheap);
 101   std::copy(array, array + length, pushheap_ref);
 102   pushheap[length] = pushval;
 103   pushheap_ref[length] = pushval;
 104   container pushcon(pushheap, pushheap + length + 1);
 105   container_ref pushcon_ref(pushheap_ref, pushheap_ref + length + 1);
 106   std::push_heap(pushcon.begin(), pushcon.end());
 107   std::push_heap(pushcon_ref.begin(), pushcon_ref.end());
 108   for (int z = 0; z < length + 1; ++z)
 109     VERIFY( pushheap[z] == pushheap_ref[z] );
 110   VERIFY( std::__is_heap(pushheap, pushheap + length + 1) );
 111   for (int z = 0; z < length + 1; ++z)
 112     VERIFY( pushheap[z].valid );
 113 }
 114
 115 void
 116 test01()
 117 {
 118   int array[9];
 119   for (int i = 1; i < ITERATIONS; ++i)
 120     {
 121       for(int z = 0; z < i; ++z)
 122         array[z] = z;
 123       while (std::next_permutation(array, array + i))
 124         {
 125           check_make(array, i);
 126           if (std::__is_heap(array, array + i))
 127             {
 128               check_pop(array, i);
 129               check_sort(array, i);
 130               for (int pushval = -1; pushval <= i; ++pushval)
 131                 check_push(array, pushval, i);
 132             }
 133         }
 134     }
 135 }
 136
 137 int
 138 main()
 139 {
 140   test01();
 141   return 0;
 142 }