Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "scan.h"
size_t scan_longn(const char *src,size_t n,long *dest) {
register const char *tmp;
register long int l;
register unsigned char c;
int neg;
int ok;
if (!n--) return 0;
tmp=src; l=0; ok=neg=0;
switch (*tmp) {
case '-': neg=1;
case '+': ++tmp;
}
while (n-->0 && (c=*tmp-'0')<10) {
l=l*10+c;
++tmp;
ok=1;
}
if (!ok) return 0;
*dest=(neg?-l:l);
return tmp-src;
}