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

// Copyright (C) 2014-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.
//

// { dg-do run { target c++11 } }

#include <map>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>

void test01()
{
  using namespace __gnu_test;

  typedef tracker_allocator<std::pair<const int, int>> alloc_type;
  typedef std::map<int, int, std::less<int>, alloc_type> test_type;

  tracker_allocator_counter::reset();

  test_type v1;
  v1 = { { 0, 0 }, { 1, 1 } };

  auto allocs = tracker_allocator_counter::get_allocation_count();
  auto constructs = tracker_allocator_counter::get_construct_count();

  VERIFY( allocs != 0 );
  VERIFY( constructs != 0 );

  // Check no allocation on list initialization.
  v1 = { { 4, 4 }, { 5, 5 } };

  VERIFY( tracker_allocator_counter::get_allocation_count() == allocs );
  VERIFY( tracker_allocator_counter::get_construct_count() == constructs + 2 );
}

int main()
{
  test01();
}