.TH scan_xlonglong 3 .SH NAME scan_xlonglong \- parse an unsigned long long integer in hexadecimal ASCII representation .SH SYNTAX .B #include size_t \fBscan_xlonglong\fP(const char *\fIsrc\fR,unsigned long long* \fIdest\fR); .SH DESCRIPTION scan_xlonglong parses an unsigned long long integer in hexadecimal ASCII representation from \fIsrc\fR and writes the result into \fIdest\fR. It returns the number of bytes read from \fIsrc\fR. scan_xlonglong understands both upper and lower case letters. scan_xlonglong does not expect or understand a "0x" prefix. .SH "SEE ALSO" fmt_xlonglong(3)