scan_ulonglong − parse an unsigned long integer in decimal ASCII representation
#include <libowfat/scan.h>
size_t scan_ulonglong(const char *src,unsigned long long *dest);
scan_ulonglong parses an unsigned long long integer in decimal ASCII representation from src and writes the result into dest. It returns the number of bytes read from src.
scan_longlong(3), fmt_ulonglong(3)