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authormanuel <manuel@mausz.at>2013-02-04 00:08:53 +0100
committermanuel <manuel@mausz.at>2013-02-04 00:08:53 +0100
commit69aec538b456402170dc723af417ba5c05389c32 (patch)
treee6f34c543f17c6392447ea337b2e2868212424d1 /scan_ulong.c
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Diffstat (limited to 'scan_ulong.c')
-rw-r--r--scan_ulong.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/scan_ulong.c b/scan_ulong.c
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1#include "scan.h"
2
3unsigned int scan_ulong(s,u) register char *s; register unsigned long *u;
4{
5 register unsigned int pos; register unsigned long result;
6 register unsigned long c;
7 pos = 0; result = 0;
8 while ((c = (unsigned long) (unsigned char) (s[pos] - '0')) < 10)
9 { result = result * 10 + c; ++pos; }
10 *u = result; return pos;
11}