libstdc++-v3/testsuite/25_algorithms/stable_partition/mem_check.cc

   1 // Copyright (C) 2009-2025 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 // std::stable_partition is not freestanding.
  19 // { dg-require-effective-target hosted }
  20
  21 // 25.2.12 [lib.alg.partitions] Partitions.
  22
  23 #include <algorithm>
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_iterators.h>
  26
  27 using __gnu_test::test_container;
  28 using __gnu_test::random_access_iterator_wrapper;
  29 using __gnu_test::copy_tracker;
  30 using __gnu_test::copy_constructor;
  31 using __gnu_test::assignment_operator;
  32 using __gnu_test::destructor;
  33
  34 typedef test_container<copy_tracker, random_access_iterator_wrapper> Container;
  35
  36 const int A[] = {10, 20, 1, 11, 2, 21, 28, 29, 12, 35, 15, 27, 6, 16, 7,
  37                  25, 17, 8, 23, 18, 9, 19, 24, 30, 13, 4, 14, 22, 26, 0};
  38
  39 bool even(const copy_tracker& ct)
  40 { return ct.id() < 19; }
  41
  42 void
  43 test1(int throw_count)
  44 {
  45   copy_tracker vals[30];
  46   for(int i = 0; i < 30; ++i)
  47     vals[i] = A[i];
  48
  49   Container con(vals, vals + 30);
  50   copy_tracker::reset();
  51   copy_constructor::throw_on(throw_count);
  52   int throw_occurred = 0;
  53   try
  54     {
  55       std::stable_partition(con.begin(), con.end(), even);
  56     }
  57   catch(...)
  58     {
  59       throw_occurred = 1;
  60     }
  61
  62   // If a throw occurred in copy_constructor, we will end up with one more
  63   // copy_construct than destructor.
  64   VERIFY( destructor::count() == copy_constructor::count() - throw_occurred );
  65 }
  66
  67 int main()
  68 {
  69   for(int i = 0; i < 32; ++i)
  70     test1(i);
  71   return 0;
  72 }