8.1030 strtoull

POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/strtoull.html

Gnulib module: strtoull

Portability problems fixed by Gnulib:

• This function is missing on some platforms: HP-UX 11.11, OSF/1 5.1, MSVC 9, Interix 3.5.

Portability problems not fixed by Gnulib: