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15 lines
333 B
C

#include "scan.h"
size_t scan_8longn(const char *src,size_t n,unsigned long *dest) {
register const char *tmp=src;
register unsigned long l=0;
register unsigned char c;
while (n-->0 && (c=(unsigned char)(*tmp-'0'))<8) {
if (l>>(sizeof(l)*8-3)) break;
l=l*8+c;
++tmp;
}
*dest=l;
return (size_t)(tmp-src);
}