feedc0de/boost_type_traits
1
0
Fork 0
forked from boostorg/type_traits
Code Pull Requests Activity

Added support and tests for MSVC SSE intrinsic types with alignments > long long.

Browse Source 
[SVN r43952]
This commit is contained in:
John Maddock
2008-03-30 17:25:24 +00:00
parent 21b6ef16db
commit 9f60cc0b42
3 changed files with 75 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/boost/type_traits/alignment_of.hpp
View File

@ -30,6 +30,10 @@ template <typename T> struct alignment_of;
// get the alignment of some arbitrary type:
namespace detail {
#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable:4324) // structure was padded due to __declspec(align())
#endif
template <typename T>
struct alignment_of_hack
{
@ -37,7 +41,9 @@ struct alignment_of_hack
T t;
alignment_of_hack();
};
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
template <unsigned A, unsigned S>
struct alignment_logic

23
include/boost/type_traits/type_with_alignment.hpp
View File

@ -232,6 +232,29 @@ BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a16,true)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a32,true)
}
#endif
#if defined(BOOST_MSVC) || (defined(BOOST_INTEL) && defined(_MSC_VER))
namespace align {
struct __declspec(align(8)) a8 { char m[8]; };
struct __declspec(align(16)) a16 { char m[16]; };
struct __declspec(align(32)) a32 { char m[32]; };
struct __declspec(align(64)) a64 { char m[64]; };
struct __declspec(align(128)) a128 { char m[128]; };
}
template<> class type_with_alignment<8> { public: typedef align::a8 type; };
template<> class type_with_alignment<16> { public: typedef align::a16 type; };
template<> class type_with_alignment<32> { public: typedef align::a32 type; };
template<> class type_with_alignment<64> { public: typedef align::a64 type; };
template<> class type_with_alignment<128> { public: typedef align::a128 type; };
namespace detail {
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a8,true)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a16,true)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a32,true)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a64,true)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_pod,::boost::align::a128,true)
}
#endif
#else

45
test/type_with_alignment_test.cpp
View File

@ -14,6 +14,17 @@
# include <boost/type_traits/is_pod.hpp>
#endif
#if defined(BOOST_MSVC) || (defined(BOOST_INTEL) && defined(_MSC_VER))
#if _MSC_VER >= 1400
#include <xmmintrin.h>
#endif
struct __declspec(align(8)) a8 { char m[8]; };
struct __declspec(align(16)) a16 { char m[16]; };
struct __declspec(align(32)) a32 { char m[32]; };
struct __declspec(align(64)) a64 { char m[64]; };
struct __declspec(align(128)) a128 { char m[128]; };
#endif
TT_TEST_BEGIN(type_with_alignment)
BOOST_MESSAGE(typeid(::tt::type_with_alignment<
@ -69,6 +80,40 @@ BOOST_CHECK(::tt::alignment_of<
>::type
>::value == ::boost::alignment_of<__int64>::value);
#endif
#if defined(BOOST_MSVC) || (defined(BOOST_INTEL) && defined(_MSC_VER))
#if _MSC_VER >= 1400
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<__m128>::value
>::type
>::value == ::boost::alignment_of<__m128>::value);
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<__m64>::value
>::type
>::value == ::boost::alignment_of<__m64>::value);
#endif
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<a8>::value
>::type
>::value == ::boost::alignment_of<a8>::value);
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<a16>::value
>::type
>::value == ::boost::alignment_of<a16>::value);
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<a32>::value
>::type
>::value == ::boost::alignment_of<a32>::value);
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<a64>::value
>::type
>::value == ::boost::alignment_of<a64>::value);
#endif
BOOST_CHECK(::tt::alignment_of<
::tt::type_with_alignment<
::tt::alignment_of<int[4]>::value