debian man page for ustrtod

ustrtod(3alleg4)						  Allegro manual						  ustrtod(3alleg4)

NAME
       ustrtod - Converts a string into a floating point number. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       double ustrtod(const char *s, char **endp);

DESCRIPTION
       This  function  converts  as many characters of `s' that look like a floating point number into one, and sets `*endp' to point to the first
       unused character, if `endp' is not a NULL pointer. Example:

	  char *endp, *string = "456.203 askdfg";
	  double number = ustrtod(string, &endp);

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

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

Allegro 							   version 4.4.2						  ustrtod(3alleg4)