From: matthew_heaney@acm.org (Matthew Heaney)
Subject: Re: Parameter evaluation order
Date: 1998/04/05
Date: 1998-04-05T00:00:00+00:00 [thread overview]
Message-ID: <matthew_heaney-ya023680000504982157020001@news.ni.net> (raw)
In-Reply-To: 6g9d2o$tfg$1@nnrp1.dejanews.com
In article <6g9d2o$tfg$1@nnrp1.dejanews.com>,
Mark.Rutten@dsto.defence.gov.au wrote:
>I'm using GNAT3.09 on WindowsNT (and also Solaris, but I didn't get
>this problem).
>
>I compiled a procedure call similar to the following
>
> proc(func_one,func_two);
>
>The program relies on func_one being called _before_ func_two. But
>at run-time the code above did the opposite! Is this a bug (and if so, has it
>been fixed in 3.10)? Or is there something written in the language definition
>to justify this behaviour?
No, this is not a bug. The language does not mandate an order of
evaluation of parameters.
There is a very simple fix:
declare
Arg1 : constant Arg1Type := Func_One;
Arg2 : constant Arg2Type := Func_Two;
begin
proc (Arg1, Arg2);
end;
next prev parent reply other threads:[~1998-04-05 0:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-04-05 0:00 Parameter evaluation order Mark.Rutten
1998-04-05 0:00 ` Matthew Heaney [this message]
1998-04-07 0:00 ` Don Harrison
1998-04-09 0:00 ` Simon Wright
1998-04-10 0:00 ` Matthew Heaney
1998-04-10 0:00 ` Simon Wright
1998-04-11 0:00 ` Robert Dewar
1998-04-06 0:00 ` Corey Ashford
1998-04-06 0:00 ` William D. Ghrist
1998-04-08 0:00 ` Glenden Lee
1998-04-09 0:00 ` Robert Dewar
[not found] ` <Er5Ir9.5Ip@world.std.com>
1998-04-09 0:00 ` Tucker Taft
1998-04-16 0:00 ` Nick Roberts
1998-04-17 0:00 ` Robert Dewar
1998-04-09 0:00 ` Peter Amey
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