libstdc++-v3/testsuite/23_containers/multimap/allocator/init-list.cc

   1 // Copyright (C) 2014-2022 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 // { dg-do run { target c++11 } }
  20
  21 #include <map>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_allocator.h>
  24
  25 void test01()
  26 {
  27   using namespace __gnu_test;
  28
  29   typedef tracker_allocator<std::pair<const int, int>> alloc_type;
  30   typedef std::multimap<int, int, std::less<int>, alloc_type> test_type;
  31
  32   tracker_allocator_counter::reset();
  33
  34   test_type v1;
  35   v1 = { { 0, 0 }, { 0, 0 } };
  36
  37   auto allocs = tracker_allocator_counter::get_allocation_count();
  38   auto constructs = tracker_allocator_counter::get_construct_count();
  39
  40   VERIFY( allocs != 0 );
  41   VERIFY( constructs != 0 );
  42
  43   // Check no allocation on list initialization.
  44   v1 = { { 1, 1 }, { 1, 1 } };
  45
  46   VERIFY( tracker_allocator_counter::get_allocation_count() == allocs );
  47   VERIFY( tracker_allocator_counter::get_construct_count() == constructs + 2 );
  48 }
  49
  50 int main()
  51 {
  52   test01();
  53 }