OpenEuphoria

Re: Unusual EU Problem (must see)

• Posted by Juergen Luethje <j.lue at gmx.de> Aug 14, 2003
• 467 views

Al wrote:

<snip>

> function FunctionAAA()
>   atom param
>   param=1
>   return FunctionBBB(param)
> end function
>
> Looks normal, doesnt it?
> Well, you would think so anyway...but
>
> FunctionBBB() never executes!
>
> Why not?
>
> procedure FunctionBBB(atom param)
>   ?param
> end procedure

<snip>

> but no real error comes up as usual in Euphoria.
> <<Now why cant that happen with an invalid sequence arg?>> 
>
> Shouldnt there be an error message or something?

I get the error message:
   FunctionBBB has not been declared
     return FunctionBBB(param)
                      ^

After changing the order of both routines, so that I have ...

----------=----------=----------=----------=---------
procedure FunctionBBB(atom param)
   ?param
end procedure

function FunctionAAA()
   atom param
   param=1
   return FunctionBBB(param)
end function
----------=----------=----------=----------=---------

... I get the error message:
   Syntax error - expected to see an expression, not a procedure
     return FunctionBBB(param)
                      ^
as expected.

If you meant the following, though (as Pete also supposed) ...

----------=----------=----------=----------=---------
procedure FunctionBBB(atom param)
   ?param
end procedure

procedure FunctionAAA()
   atom param
   param=1
   return FunctionBBB(param)
end procedure
----------=----------=----------=----------=---------

... I get a warning:
   Unusual EU Problem.exw:8 - statement after return will never
   be executed

So Eu raises a warning, not an error here. Maybe you didn't get the
warning, because you used "without warning" in your program?

BTW: I tested this, using the Windows interpreter 2.4.

<snip>

Best regards,
   Juergen

-- 
 /"\  ASCII ribbon campain  | "Everything should be made as simple
 \ /  against HTML in       |  as possible, but not simpler."
  X   e-mail and news,      |
 / \  and unneeded MIME     | [Albert Einstein]