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FishMarket 1.0
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memset.c
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C/C++ Source or Header
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1980-01-01
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506b
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31 lines
/*
* memset - set bytes
*
* CHARBITS should be defined only if the compiler lacks "unsigned char".
* It should be a mask, e.g. 0377 for an 8-bit machine.
*/
#ifndef CHARBITS
# define UNSCHAR(c) ((unsigned char)(c))
#else
# define UNSCHAR(c) ((c)&CHARBITS)
#endif
char *
memset(s, ucharfill, size)
char * s;
register int ucharfill;
int size;
{
register char *scan;
register int n;
register int uc;
scan = s;
uc = UNSCHAR(ucharfill);
for (n = size; n > 0; n--)
*scan++ = uc;
return(s);
}