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// 1999-05-07
// bkoz
// Copyright (C) 1999-2018 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/>.
// 23.2.4.2 vector capacity
#include <vector>
#include <stdexcept>
#include <testsuite_allocator.h>
#include <testsuite_hooks.h>
using __gnu_test::copy_tracker;
using __gnu_test::tracker_allocator_counter;
using __gnu_test::tracker_allocator;
using __gnu_test::copy_constructor;
using __gnu_test::assignment_operator;
using __gnu_test::destructor;
// Verifies basic functionality of reserve() with forced reallocation.
void
test_reserve()
{
typedef copy_tracker T;
typedef std::vector<T, tracker_allocator<T> > X;
tracker_allocator_counter::reset();
{
X a(3);
const X::size_type old_size = a.size();
const X::size_type old_capacity = a.capacity();
const X::size_type new_capacity = old_capacity + 10;
T::reset();
a.reserve(new_capacity);
// [23.2.4.1 (2)]
VERIFY(new_capacity <= a.capacity());
// [23.2.4.1 (3)]
VERIFY(old_size == a.size());
VERIFY(copy_constructor::count() <= old_size);
VERIFY(destructor::count() <= old_size);
}
// check for memory leaks
VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count());
}
// Verifies that reserve() with reallocation offers the strong
// exception guarantee.
void
test_reserve_exception_guarantee()
{
typedef copy_tracker T;
typedef std::vector<T, tracker_allocator<T> > X;
tracker_allocator_counter::reset();
{
X a(7);
const X::size_type old_size __attribute__((unused)) = a.size();
const X::size_type old_capacity = a.capacity();
const X::size_type new_capacity = old_capacity + 10;
T::reset();
copy_constructor::throw_on(3);
try
{
a.reserve(new_capacity);
VERIFY(false);
}
catch (...)
{
}
VERIFY(old_capacity == a.capacity());
VERIFY(copy_constructor::count() == destructor::count()+1);
}
VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count());
}
int main()
{
test_reserve();
test_reserve_exception_guarantee();
return 0;
}
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