From: Robert A Duff <bobduff@world.std.com>
Subject: Re: scope and/or parameters (beginner)
Date: 1999/04/13
Date: 1999-04-13T00:00:00+00:00 [thread overview]
Message-ID: <wcchfqkbddr.fsf@world.std.com> (raw)
In-Reply-To: 370b0c99.1137352783@news.dsuper.net
fluffy_doo@dsuper.net writes:
> It looks like I am forced to declare a *new variable* in One_Procedure
> to which I will give the value of Var_2 (Ex: modif_Var_2 := Var_2;),
> and then send modif_Var_2 in Internal_Procedure to be modified and
> brought back via its "IN OUT" parameter.
That's right.
The rule in some other languages (eg Pascal and C) is different -- in
those languages, a parameter acts just like a local variable, so you can
modify it, and it doesn't affect the caller's copy. That's error prone,
which is why in Ada an 'in' mode parameter acts like a local *constant*.
- Bob
--
Change robert to bob to get my real email address. Sorry.
next prev parent reply other threads:[~1999-04-13 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
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 [this message]
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 ` Hyman Rosen
1999-04-15 0:00 ` dennison
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
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