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MdePkg/BaseOverflowLib: Support BASE_ALIGNAS on VS2019 

Note: this must be combined with flag /wd4324 added to MSFT:*_CC_FLAGS
to avoid spurious warnings when the macro is working as intended.

Update comment since alignment in all architectures can be used to align
structure member or variable definition.
This commit is contained in:
Mike Beaton 2024-11-27 00:01:17 +00:00
parent bf8a429f4e
commit af05a18b4c
1 changed files with 4 additions and 2 deletions
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6
MdePkg/Include/Library/BaseOverflowLib.h
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@ -32,9 +32,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#define BASE_TYPE_ALIGNED(Type, Ptr) (BASE_POT_ALIGNED (BASE_ALIGNOF (Type), Ptr))
//
// Force member alignment for the structure.
// Force alignment for structure member or variable definition.
//
#if (defined (__STDC__) && __STDC_VERSION__ >= 201112L) || defined (__GNUC__) || defined (__clang__)
#if defined (_MSC_VER)
#define BASE_ALIGNAS(Alignment) __declspec(align(Alignment))
#elif (defined (__STDC__) && __STDC_VERSION__ >= 201112L) || defined (__GNUC__) || defined (__clang__)
#define BASE_ALIGNAS(Alignment) _Alignas(Alignment)
#else
#define BASE_ALIGNAS(Alignment)