1

2

3 // ===============================================================================

4 // May be included multiple times - sets structure packing to 1

5 // for all supported compilers. #include <poppack1.h> reverts the changes.

6 //

7 // Currently this works on the following compilers:

8 // MSVC 7,8,9

9 // GCC

10 // BORLAND (complains about 'pack state changed but not reverted', but works)

11 //

12 //

13 // USAGE:

14 //

15 // struct StructToBePacked {

16 // } PACK_STRUCT;

17 //

18 // ===============================================================================

19

20 #ifdef AI_PUSHPACK_IS_DEFINED

21 # error poppack1.h must be included after pushpack1.h

22 #endif

23

24 #if defined(_MSC_VER) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)

25 # pragma pack(push,1)

26 # define PACK_STRUCT

27 #elif defined( __GNUC__ )

28 # define PACK_STRUCT __attribute__((packed))

29 #else

30 # error Compiler not supported

31 #endif

32

33 #if defined(_MSC_VER)

34

35 // C4103: Packing was changed after the inclusion of the header, propably missing #pragma pop

36 # pragma warning (disable : 4103)

37 #endif

38

39 #define AI_PUSHPACK_IS_DEFINED

40

41