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15 lines
301 B
C

#include "scan.h"
size_t scan_8longlong(const char *src,unsigned long long *dest) {
register const char *tmp=src;
register unsigned long long l=0;
register unsigned char c;
while ((c=*tmp-'0')<8) {
if (l>>(sizeof(l)*8-3)) break;
l=l*8+c;
++tmp;
}
*dest=l;
return tmp-src;
}