scan_xlonglong - parse an unsigned long long integer in hexadecimal ASCII representation

       scan_xlonglong  parses  an  unsigned  long  long integer in hexadecimal ASCII representation from src and
       writes the result into dest. It returns the number of bytes read from src.

       scan_xlonglong understands both upper and lower case letters.

       scan_xlonglong does not expect or understand a "0x" prefix.

       scan_xlonglong - parse an unsigned long long integer in hexadecimal ASCII representation

fmt_xlonglong(3)

                                                                                               scan_xlonglong(3)

#include<libowfat/scan.h>

       size_t scan_xlonglong(const char *src,unsigned long long* dest);