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- #ifndef __SYS__
- #define __SYS__
- #ifdef WORDS_BIGENDIAN
- #define BIG_ENDIANS
- #else
- #define LITTLE_ENDIANS
- #endif
- #if defined( __WATCOMC__ )
- // they didn't include this def in their math include
- #ifndef M_PI
- #define M_PI 3.141592654
- #endif
- // so stuff can find proper file ops
- #include <io.h>
- #elif defined( __POWERPC__ )
- // they didn't include this def in their math include
- #ifndef M_PI
- #define M_PI 3.141592654
- #endif
- #include <unistd.h>
- #else
- // so apps can find unlink
- #include <unistd.h>
- #endif
- #define short_swap(x) (((((unsigned short) (x)))<<8)|((((unsigned short) (x)))>>8))
- #define long_swap(x) \
- ((( ((unsigned long)(x)) )>>24)|((( ((unsigned long)(x)) )&0x00ff0000)>>8)| \
- ((( ((unsigned long)(x)) )&0x0000ff00)<<8)|(( ((unsigned long)(x)) )<<24))
- #if defined BIG_ENDIANS
- #define LONG int
- #define int_to_intel(x) short_swap(x)
- #define int_to_local(x) int_to_intel(x)
- #define big_long_to_local(x) (x)
- #define big_short_to_local(x) (x)
- #define long_to_intel(x) long_swap(x)
- #define long_to_local(x) long_to_intel(x)
- #else
- #define LONG long
- #define int_to_intel(x) (x)
- #define int_to_local(x) (x)
- #define long_to_local(x) (x)
- #define long_to_intel(x) (x)
- #define big_long_to_local(x) long_swap(x)
- #define big_short_to_local(x) short_swap(x)
- #endif
- #define bltl(x) big_long_to_local(x)
- #define bstl(x) big_short_to_local(x)
- #define lltl(x) long_to_intel(x)
- #define lstl(x) int_to_intel(x)
- #endif
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