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

       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);

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

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

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

Allegro                                           version 4.4.3                                 ustrtod(3alleg4)

#include<allegro.h>doubleustrtod(constchar*s,char**endp);