| Rev | Line | |
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| [1] | 1 | #ifndef _DIET_STRING_H_ |
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| 2 | #define _DIET_STRING_H_ |
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| 3 | |
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| 4 | #include <endian.h> |
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| 5 | |
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| 6 | #if __WORDSIZE == 64 |
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| 7 | # define MKW(x) (x|x<<8|x<<16|x<<24|x<<32|x<<40|x<<48|x<<56) |
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| 8 | # define STRALIGN(x) (((unsigned long)x&7)?8-((unsigned long)x&7):0) |
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| 9 | #else /* __WORDSIZE == 32 */ |
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| 10 | # define MKW(x) (x|x<<8|x<<16|x<<24) |
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| 11 | # define STRALIGN(x) (((unsigned long)x&3)?4-((unsigned long)x&3):0) |
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| 12 | #endif |
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| 13 | |
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| 14 | /* GFC(x) - returns first character */ |
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| 15 | /* INCSTR(x) - moves to next character */ |
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| 16 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
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| 17 | # define GFC(x) ((x)&0xff) |
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| 18 | # define INCSTR(x) do { x >>= 8; } while (0) |
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| 19 | #else |
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| 20 | # define GFC(x) (((x)>>(sizeof(x)*8-8))&0xff) |
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| 21 | # define INCSTR(x) do { x <<= 8; } while (0) |
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| 22 | #endif |
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| 23 | |
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| 24 | #define UNALIGNED(x,y) (((unsigned long)x & (sizeof (unsigned long)-1)) ^ ((unsigned long)y & (sizeof (unsigned long)-1))) |
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| 25 | |
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| 26 | #endif /* _DIET_STRING_H_ */ |
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