strtouq,strtoull

   Convert the initial portion of the string pointed to by nptr to
   an unsigned __int64 integer. strtoull is a synonym for strtouq.

   This function is supported on OpenVMS Integrity servers and
   Alpha only.

   Format

     #include  <stdlib.h>

     unsigned __int64 strtouq  (const char *nptr, char **endptr, int base);

     unsigned __int64 strtoull  (const char *nptr, char **endptr, int base);
 

Additional information available:

Function_Variants               Arguments       Return_Values