From: Corey Ashford <yeroca@rocketmail.com>
Subject: Re: scope and/or parameters (beginner)
Date: 1999/04/05
Date: 1999-04-05T00:00:00+00:00 [thread overview]
Message-ID: <37084459.8616007@rocketmail.com> (raw)
In-Reply-To: 37064309.889106243@news.dsuper.net
fluffy_pink@dsuper.net wrote:
[snip]
>
> If for "(QUESTION)" I use "Second_Variable" the compiler tells me that
> for an OUT or an IN OUT I must have an actual parameter that **is a
> variable***. I don't understand why it tells me this.
"IN" parameters are considered read-only. You've tried to pass it to
a procedure which may attempt to change its value - something that
isn't allowed to a read-only variable. Treat "IN" parameters as
constants that are defined when the subprogram is invoked.
[snip]
>
> How can I pass the value of Var_2 from my main program, into
> One_Procedure, and then from One_Procedure into Internal_Procedure,
> and then to make it come back out modified (IN OUT) so that it will
> end up in One_Proc�dure ? I don't want to use the modified value of
> Var_2 (modified by Internal_Procedure) at the main program level; I
> want to use it only in One_Proc�dure.
[snip]
Well, you could change the definition of One_prog so that its
Second_Variable is of type "IN OUT The_Type", instead of just IN. Then
you could call Inner_Procedure legally with Second_Variable.
- Corey
next prev parent reply other threads:[~1999-04-05 0:00 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-04-02 0:00 scope and/or parameters (beginner) fluffy_pink
1999-04-03 0:00 ` Matthew Heaney
1999-04-05 0:00 ` Corey Ashford [this message]
1999-04-05 0:00 ` fluffy_doo
1999-04-06 0:00 ` Matthew Heaney
1999-04-08 0:00 ` czgrr
1999-04-10 0:00 ` fluffy_puff
1999-04-12 0:00 ` dennison
1999-04-13 0:00 ` Robert Dewar
1999-04-13 0:00 ` czgrr
1999-04-13 0:00 ` Robert Dewar
1999-04-14 0:00 ` czgrr
1999-04-14 0:00 ` Robert Dewar
1999-04-15 0:00 ` czgrr
1999-04-15 0:00 ` Robert Dewar
1999-04-14 0:00 ` dennison
1999-04-13 0:00 ` Robert A Duff
1999-04-14 0:00 ` Robert Dewar
1999-04-14 0:00 ` Hyman Rosen
1999-04-14 0:00 ` dennison
1999-04-14 0:00 ` Hyman Rosen
1999-04-14 0:00 ` dennison
1999-04-14 0:00 ` Hyman Rosen
1999-04-15 0:00 ` dennison
1999-04-15 0:00 ` Robert Dewar
1999-04-15 0:00 ` dennison
1999-04-15 0:00 ` Hyman Rosen
1999-04-15 0:00 ` Robert Dewar
1999-04-15 0:00 ` Hyman Rosen
1999-04-15 0:00 ` Robert Dewar
1999-04-15 0:00 ` Hyman Rosen
1999-04-16 0:00 ` Rakesh Malhotra
1999-04-15 0:00 ` fluffy_dong
1999-04-15 0:00 ` Robert Dewar
1999-04-15 0:00 ` dennison
1999-04-15 0:00 ` fluffy_dong
1999-04-16 0:00 ` Robert Dewar
1999-04-16 0:00 ` Fraser Wilson
1999-04-16 0:00 ` Gautier.DeMontmollin
1999-04-20 0:00 ` Nick Roberts
1999-04-21 0:00 ` fraser
1999-04-22 0:00 ` Robert A Duff
1999-04-22 0:00 ` Larry Kilgallen
1999-04-16 0:00 ` Samuel Mize
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox