container/test/null_iterators_test.cpp

97 lines
3.4 KiB
C++

//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2014-2014. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/container/vector.hpp>
#include <boost/container/deque.hpp>
#include <boost/container/stable_vector.hpp>
#include <boost/container/static_vector.hpp>
#include <boost/container/string.hpp>
#include <boost/container/list.hpp>
#include <boost/container/slist.hpp>
#include <boost/container/map.hpp>
#include <boost/container/set.hpp>
#include <boost/container/flat_set.hpp>
#include <boost/container/flat_map.hpp>
#include <boost/intrusive/detail/mpl.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/static_assert.hpp>
#include <cstring>
#include <new>
using namespace boost::container;
typedef boost::container::dtl::aligned_storage<sizeof(void*)*4>::type buffer_t;
static buffer_t buffer_0x00;
static buffer_t buffer_0xFF;
template<class Iterator>
const Iterator &on_0x00_buffer()
{
BOOST_STATIC_ASSERT(sizeof(buffer_t) >= sizeof(Iterator));
return * ::new(std::memset(&buffer_0x00, 0x00, sizeof(buffer_0x00))) Iterator();
}
template<class Iterator>
const Iterator &on_0xFF_buffer()
{
BOOST_STATIC_ASSERT(sizeof(buffer_t) >= sizeof(Iterator));
return * ::new(std::memset(&buffer_0xFF, 0xFF, sizeof(buffer_0xFF))) Iterator();
}
namespace boost {
namespace container {
namespace test {
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(reverse_iterator)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(const_reverse_iterator)
}}} //namespace boost::container::test {
template<class Container>
void check_null_iterators()
{
typedef typename Container::iterator iterator;
typedef typename Container::const_iterator const_iterator;
typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT
(boost::container::test::, Container
,reverse_iterator, iterator) reverse_iterator;
typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT
(boost::container::test::, Container
,const_reverse_iterator, const_iterator) const_reverse_iterator;
BOOST_TEST(on_0xFF_buffer<iterator>() == on_0x00_buffer<iterator>());
BOOST_TEST(on_0xFF_buffer<const_iterator>() == on_0x00_buffer<const_iterator>());
BOOST_TEST(on_0xFF_buffer<reverse_iterator>() == on_0x00_buffer<reverse_iterator>());
BOOST_TEST(on_0xFF_buffer<const_reverse_iterator>() == on_0x00_buffer<const_reverse_iterator>());
}
int main()
{
check_null_iterators< vector<int> >();
check_null_iterators< deque<int> >();
check_null_iterators< stable_vector<int> >();
check_null_iterators< static_vector<int, 1> >();
check_null_iterators< string >();
check_null_iterators< list<int> >();
check_null_iterators< slist<int> >();
check_null_iterators< map<int, int> >();
check_null_iterators< multimap<int, int> >();
check_null_iterators< set<int> >();
check_null_iterators< multiset<int> >();
check_null_iterators< flat_set<int> >();
check_null_iterators< flat_multiset<int> >();
check_null_iterators< flat_map<int, int> >();
check_null_iterators< flat_multimap<int, int> >();
return boost::report_errors();
}