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// (C) Copyright John Maddock 2000.
// Permission to copy, use, modify, sell and distribute this software is
// granted provided this copyright notice appears in all copies. This software
// is provided "as is" without express or implied warranty, and with no claim
// as to its suitability for any purpose.
#ifndef BOOST_TT_ALIGNMENT_OF_HPP_INCLUDED
#define BOOST_TT_ALIGNMENT_OF_HPP_INCLUDED
#include "boost/config.hpp"
#include <cstddef>
// should be the last #include
#include "boost/type_traits/detail/size_t_trait_def.hpp"
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable: 4121) // alignment is sensitive to packing
#endif
#ifdef __BORLANDC__
#pragma option push -Vx- -Ve-
#endif
namespace boost {
template <typename T> struct alignment_of;
// get the alignment of some arbitrary type:
namespace detail {
template <typename T>
struct alignment_of_hack
{
char c;
T t;
alignment_of_hack();
};
template <unsigned A, unsigned S>
struct alignment_logic
{
BOOST_STATIC_CONSTANT(std::size_t, value = A < S ? A : S);
};
template< typename T >
struct alignment_of_impl
{
BOOST_STATIC_CONSTANT(std::size_t, value =
(::boost::detail::alignment_logic<
sizeof(detail::alignment_of_hack<T>) - sizeof(T),
sizeof(T)
>::value));
};
} // namespace detail
BOOST_TT_AUX_SIZE_T_TRAIT_DEF1(alignment_of,T,::boost::detail::alignment_of_impl<T>::value)
// references have to be treated specially, assume
// that a reference is just a special pointer:
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template <typename T>
struct alignment_of<T&>
: alignment_of<T*>
{
};
#endif
#ifdef __BORLANDC__
// long double gives an incorrect value of 10 (!)
// unless we do this...
struct long_double_wrapper{ long double ld; };
template<> struct alignment_of<long double>
: public alignment_of<long_double_wrapper>{};
#endif
// void has to be treated specially:
BOOST_TT_AUX_SIZE_T_TRAIT_SPEC1(alignment_of,void,0)
#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
BOOST_TT_AUX_SIZE_T_TRAIT_SPEC1(alignment_of,void const,0)
BOOST_TT_AUX_SIZE_T_TRAIT_SPEC1(alignment_of,void volatile,0)
BOOST_TT_AUX_SIZE_T_TRAIT_SPEC1(alignment_of,void const volatile,0)
#endif
} // namespace boost
#ifdef __BORLANDC__
#pragma option pop
#endif
#ifdef BOOST_MSVC
# pragma warning(pop)
#endif
#include "boost/type_traits/detail/size_t_trait_undef.hpp"
#endif // BOOST_TT_ALIGNMENT_OF_HPP_INCLUDED
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Mr. Shah is a reclusive C++/C# developer lurking somewhere in the depths of the city of London. He learnt physics at Kings' College London and obtained a Master in Science there. Having earned an MCAD, he teeters on the brink of transitioning from C++ to C#, unsure of which language to jump to. Fortunately, he also knows how to use .NET interop to merge code between the two languages (which means he won't have to make the choice anytime soon).
His interests (apart from programming) are walking, football (the real one!), philosophy, history, retro-gaming, strategy gaming, and any good game in general.
He maintains a website / blog / FAQ / junk at shexec32.serveftp.net, where he places the best answers he's written to the questions you've asked. If you can find him, maybe you can hire Mr. Shah to help you with anything C++[/CLI]/C#/.NET related
.