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// 1999-05-07
// bkoz
// Copyright (C) 1999, 2002, 2003 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 23.2.4.2 vector capacity
#include <vector>
#include <stdexcept>
#include <testsuite_allocator.h>
#include <testsuite_hooks.h>
using __gnu_cxx_test::copy_tracker;
using __gnu_cxx_test::allocation_tracker;
using __gnu_cxx_test::tracker_alloc;
using __gnu_cxx_test::copy_constructor;
using __gnu_cxx_test::assignment_operator;
using __gnu_cxx_test::destructor;
template<typename T>
struct A { };
struct B { };
void test01()
{
// non POD types
bool test = true;
std::vector< A<B> > vec01;
typedef std::vector< A<B> >::size_type size_type;
size_type sz01 = vec01.capacity();
vec01.reserve(100);
size_type sz02 = vec01.capacity();
VERIFY( sz02 >= sz01 );
sz01 = vec01.size() + 5;
vec01.resize(sz01);
sz02 = vec01.size();
VERIFY( sz01 == sz02 );
sz01 = vec01.size() - 5;
vec01.resize(sz01);
sz02 = vec01.size();
VERIFY( sz01 == sz02 );
}
// libstdc++/8230
void test02()
{
bool test = true;
{
std::vector<int> array;
const std::size_t size = array.max_size();
try
{
array.reserve(size);
}
catch (const std::length_error& error)
{
test &= false;
}
catch (const std::bad_alloc& error)
{
test &= true;
}
catch (...)
{
test &= false;
}
VERIFY( test );
}
{
std::vector<int> array;
const std::size_t size = array.max_size() + 1;
try
{
array.reserve(size);
}
catch (const std::length_error& error)
{
test &= true;
}
catch (...)
{
test &= false;
}
VERIFY( test );
}
}
// Verifies basic functionality of reserve() with forced reallocation.
void
test_reserve()
{
bool test = true;
typedef copy_tracker T;
typedef std::vector<T, tracker_alloc<T> > X;
allocation_tracker::resetCounts();
{
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(allocation_tracker::allocationTotal() == allocation_tracker::deallocationTotal());
}
// Verifies that reserve() with reallocation offers the strong
// exception guarantee.
void
test_reserve_exception_guarantee()
{
bool test = true;
typedef copy_tracker T;
typedef std::vector<T, tracker_alloc<T> > X;
allocation_tracker::resetCounts();
{
X a(7);
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();
copy_constructor::throw_on(3);
try
{
a.reserve(new_capacity);
VERIFY(("no exception thrown", false));
}
catch (...)
{
}
VERIFY(old_capacity == a.capacity());
VERIFY(copy_constructor::count() == destructor::count()+1);
}
VERIFY(allocation_tracker::allocationTotal() == allocation_tracker::deallocationTotal());
}
int main()
{
test01();
test02();
test_reserve();
test_reserve_exception_guarantee();
return 0;
}
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