debian man page for ustrtol

ustrtol(3alleg4)						  Allegro manual						  ustrtol(3alleg4)

NAME
       ustrtol - Converts a string into an integer. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       long ustrtol(const char *s, char **endp, int base);

DESCRIPTION
       This  function  converts  the initial part of `s' to a signed integer, setting `*endp' to point to the first unused character, if `endp' is
       not a NULL pointer. The `base' argument indicates what base the digits (or letters) should be treated as. If `base' is zero,  the  base	is
       determined  by  looking for `0x', `0X', or `0' as the first part of the string, and sets the base used to 16, 16, or 8 if it finds one. The
       default base is 10 if none of those prefixes are found. Example:

	  char *endp, *string = "456.203 askdfg";
	  int number = ustrtol(string, &endp, 10);

RETURN VALUE
       Returns the string converted as a value of type `long int'. If nothing was converted, returns zero with `*endp' pointing to  the  beginning
       of `s'.

SEE ALSO
       uconvert(3alleg4), ustrtod(3alleg4), uatof(3alleg4)

Allegro 							   version 4.4.2						  ustrtol(3alleg4)