44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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// ===============================================================================
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// May be included multiple times - sets structure packing to 1
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// for all supported compilers. #include <poppack1.h> reverts the changes.
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//
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// Currently this works on the following compilers:
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// MSVC 7,8,9
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// GCC
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// BORLAND (complains about 'pack state changed but not reverted', but works)
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// Clang
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//
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//
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// USAGE:
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//
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// struct StructToBePacked {
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// } PACK_STRUCT;
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//
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// ===============================================================================
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#ifdef AI_PUSHPACK_IS_DEFINED
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# error poppack1.h must be included after pushpack1.h
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#endif
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#if defined(_MSC_VER) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
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# pragma pack(push,1)
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# define PACK_STRUCT
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#elif defined( __GNUC__ ) || defined(__clang__)
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# if !defined(HOST_MINGW)
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# define PACK_STRUCT __attribute__((__packed__))
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# else
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# define PACK_STRUCT __attribute__((gcc_struct, __packed__))
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# endif
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#else
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# error Compiler not supported
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#endif
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#if defined(_MSC_VER)
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// C4103: Packing was changed after the inclusion of the header, probably missing #pragma pop
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# pragma warning (disable : 4103)
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#endif
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#define AI_PUSHPACK_IS_DEFINED
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