OpenEuphoria

Re: How can I STOP a cursed recursion?

• Posted by Juergen Luethje <j.lue at gmx.de> Jun 19, 2006
• 520 views

Dan Moyer wrote:

<snip>

> Is there some way to just STOP a procedure, even if it has been working
> recursivly??

Yes, it is.

> Or maybe recursion is supposed to be limited to FUNCTIONS?

No.

> procedure Help!()
>   print(1,"help!")
>   Help{}
>   -- How can I stop!?
> end procedure
> 
> Help!

integer Count, NumTimes

procedure Help()
   puts(1,"Help!\n")
   Count += 1
   if Count < NumTimes then
      Help()
   end if
end procedure

Count = 0
NumTimes = 3
Help()

The code above prints "Help!\n" three times. Often it is nice to use an
additional non-recursive routine, which "wraps" the recursive routine, e.g.:

integer Count, NumTimes

procedure Help()
   puts(1,"Help!\n")
   Count += 1
   if Count < NumTimes then
      Help()
   end if
end procedure

global procedure Call_Help(integer times)
   -- This is the routine which is called by the user.
   Count = 0
   NumTimes = times        -- copy to local variable
   Help()
end procedure

Call_Help(3)

Regards,
   Juergen