OpenEuphoria

Re: Return Statement Usage

• Posted by Irv <irv at ELLIJAY.COM> Jun 24, 1998
• 439 views

Alan Tu wrote:

> I have two questions about the return statement.
>
> 1.   If I have a main program, and I call a global procedure within an
> include file, do I need to put return at the end of the global procedure?
>

Never use  return in a procedure. A procedure does a job (procedure) and
returns by itsel.f.Always use a return at the end of a function. (A function
must return somthing to it's caller.)

Procedures do stuff until they hit the "end procedure" statement,
while functions can return before they get to the "end function",
A function can have several "return" statements, based on different tests:

function avg_days_pay (atom weekly_pay, atom days_worked)
if days_worked < 1 then return 0 -- can't divide by zero, so answer would be
meaningless
else return weekly_pay / days_worked
end if
end function

> 2.  In the same set of procedures, in the global procedure, which is in the
> include file, I call a local procedure that is in the same include file.
> Do I need to put return at the end of the local procedure to continue with
> the main procedur?
>
> In general, under what circumstances should one use return at the end of a
> procedure to keep the program from "wandering off"?
>
> --Alan