scan_ulong.c
author "Tomas Zeman <tomas.zeman@sun.com>"
Fri, 19 Oct 2007 11:01:15 +0200
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#include "scan.h"
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unsigned int scan_ulong(register char *s,register unsigned long *u)
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{
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  register unsigned int pos; register unsigned long result;
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  register unsigned long c;
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  pos = 0; result = 0;
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  while ((c = (unsigned long) (unsigned char) (s[pos] - '0')) < 10)
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    { result = result * 10 + c; ++pos; }
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  *u = result; return pos;
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}