libowfat/scan/scan_8int.c

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#include "scan.h"
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size_t scan_8int(const char* src,unsigned int* dest) {
register const char *tmp=src;
register unsigned int l=0;
register unsigned char c;
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while ((c=(unsigned char)(*tmp-'0'))<8) {
if (l>>(sizeof(l)*8-3)) break;
l=l*8+c;
++tmp;
}
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*dest=l;
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return (size_t)(tmp-src);
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}