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28 lines
579 B
C
28 lines
579 B
C
/* bcopy -- copy memory regions of arbitary length
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@deftypefn Supplemental void bcopy (char *@var{in}, char *@var{out}, int @var{length})
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Copies @var{length} bytes from memory region @var{in} to region
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@var{out}. The use of @code{bcopy} is deprecated in new programs.
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@end deftypefn
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*/
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void
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bcopy (src, dest, len)
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register char *src, *dest;
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int len;
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{
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if (dest < src)
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while (len--)
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*dest++ = *src++;
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else
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{
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char *lasts = src + (len-1);
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char *lastd = dest + (len-1);
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while (len--)
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*(char *)lastd-- = *(char *)lasts--;
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}
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}
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