Andreas Brinck wrote:
(Sorry for sending this twice, I didn't format the subject the correct way first time)
No problem, I saw the first message, just haven't gotten around to it yet :-(
I'm using Visual Studio 2005 and got into trouble when I tried to serialize a class with 16 byte alignment:
__declspec(align(16)) class Vech { ... __m128 m_data; };
The problem is that the following static assert in type_with_alignment is triggered:
BOOST_STATIC_ASSERT(found % Align == 0);
which in turn stems from the fact that sizeof(max_align) == 8. By changing the lines:
#define BOOST_TT_ALIGNMENT_BASE_TYPES BOOST_PP_TUPLE_TO_LIST( \ 12, ( \ char, short, int, long, ::boost::long_long_type, float, double, long double \ , void*, function_ptr, member_ptr, member_function_ptr))
to
#include <xmmintrin.h>
#define BOOST_TT_ALIGNMENT_BASE_TYPES BOOST_PP_TUPLE_TO_LIST( \ 13, ( \ char, short, int, long, ::boost::long_long_type, float, double, long double \ , void*, function_ptr, member_ptr, member_function_ptr, __m128))
I got rid of the static assert and everything seems to work just fine. Would it be possible to get this "fix" into a later release of boost in a more rigorous and organized fashion (with all the surrounding compiler workarounds and typedefs etc.)?
Or is there another way to get the same effect?
I think I'd prefer a solution that didn't involve including xmmintrin.h: do you know if that header is universally available for VC8? Either way, will you please open a Trac bug report on this (at svn.boost.org), so this doesn't get lost? I don't want to patch type_traits in the run up to the 1.35 release, but once the "core" libraries have been merged to the release branch, I will look into this. Thanks for the report, John Maddock.