/usr/include/boost/python/detail
Edit: /usr/include/boost/python/detail/referent_storage.hpp (1980B)
// Copyright David Abrahams 2002.
// 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)
#ifndef REFERENT_STORAGE_DWA200278_HPP
# define REFERENT_STORAGE_DWA200278_HPP
# include
# include
namespace boost { namespace python { namespace detail {
struct alignment_dummy;
typedef void (*function_ptr)();
typedef int (alignment_dummy::*member_ptr);
typedef int (alignment_dummy::*member_function_ptr)();
# define BOOST_PYTHON_ALIGNER(T, n) \
typename mpl::if_c< \
sizeof(T) <= size, T, char>::type t##n
// Storage for size bytes, aligned to all fundamental types no larger than size
template
union aligned_storage
{
BOOST_PYTHON_ALIGNER(char, 0);
BOOST_PYTHON_ALIGNER(short, 1);
BOOST_PYTHON_ALIGNER(int, 2);
BOOST_PYTHON_ALIGNER(long, 3);
BOOST_PYTHON_ALIGNER(float, 4);
BOOST_PYTHON_ALIGNER(double, 5);
BOOST_PYTHON_ALIGNER(long double, 6);
BOOST_PYTHON_ALIGNER(void*, 7);
BOOST_PYTHON_ALIGNER(function_ptr, 8);
BOOST_PYTHON_ALIGNER(member_ptr, 9);
BOOST_PYTHON_ALIGNER(member_function_ptr, 10);
char bytes[size];
};
# undef BOOST_PYTHON_ALIGNER
// Compute the size of T's referent. We wouldn't need this at all,
// but sizeof() is broken in CodeWarriors <= 8.0
template struct referent_size;
template
struct referent_size
{
BOOST_STATIC_CONSTANT(
std::size_t, value = sizeof(T));
};
// A metafunction returning a POD type which can store U, where T ==
// U&. If T is not a reference type, returns a POD which can store T.
template
struct referent_storage
{
typedef aligned_storage<
::boost::python::detail::referent_size::value
> type;
};
}}} // namespace boost::python::detail
#endif // REFERENT_STORAGE_DWA200278_HPP