Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

32 lines
766 B

#include "scan.h"
#include "scan_fromhex.c"
#define UNITTEST
size_t scan_xshort(const char* src,unsigned short* dest) {
register const char *tmp=src;
register unsigned short l=0;
register unsigned char c;
while ((l>>(sizeof(l)*8-4))==0 && (c=(unsigned char)scan_fromhex((unsigned char)*tmp))<16) {
l=(unsigned short)((l<<4)+c);
return (size_t)(tmp-src);
#include <assert.h>
int main() {
unsigned short i;
assert(scan_xshort("fefe",&i)==4 && i==0xfefe);
assert(scan_xshort("0xfefe",&i)==1); // 0x not supported, will scan the 0
assert(scan_xshort("fefec0de",&i)==4 && i==0xfefe); // test truncation
return 0;