libstdc++-v3/testsuite/performance/23_containers/range_construct/list_construct2.cc

   1 // Copyright (C) 2010-2021 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
  19 // Performance test of debug mode list range constructor
  20 #define _GLIBCXX_DEBUG
  21
  22 #include <list>
  23 #include <testsuite_performance.h>
  24
  25 int main()
  26 {
  27   using namespace __gnu_test;
  28
  29   time_counter time;
  30   resource_counter resource;
  31
  32   const std::list<int> ref(50000, 3);
  33
  34   start_counters(time, resource);
  35
  36   for (unsigned i = 0; i < 1000; ++i)
  37     std::list<int> l(ref.begin(), ref.end());
  38
  39   stop_counters(time, resource);
  40   report_performance(__FILE__, "", time, resource);
  41
  42   return 0;
  43 }