From: Simon Wright <simon@pushface.org>
Subject: Re: Pop function
Date: Thu, 15 Dec 2011 12:43:11 +0000
Date: 2011-12-15T12:43:11+00:00 [thread overview]
Message-ID: <m2ty5280ps.fsf@pushface.org> (raw)
In-Reply-To: 31100824.174.1323919653265.JavaMail.geo-discussion-forums@yqcs5
"Rego, P." <pvrego@gmail.com> writes:
> Ok. So it would be like
>
> procedure Pop (Sender : in out T_List_Ptr;
> T_Item : out Integer) is
> Previous_Sender : T_List_Ptr;
[...]
> but in this case I could not call
> Some_Obj : access T_List;
> Other_Int : Integer;
> ...
> Other_Int := Some_Obj.Pop;
> because Pop is not a primitive of T_List. The notation Some_Obj.Pop
> would be just sintatic sugar, but would exist a way we can implement
> Pop for using with this? (but sure...that's also ok for the non-sugar
> case)
I don't see why Pop takes T_List_Ptr as an argument. I would have
written
procedure Pop (Sender : in out T_List;
T_Item : out Integer) is
and then it would be primitive (assuming T_List is tagged).
And why is the parameter called Sender? that sounds like a name in the
domain of the problem you're trying to solve, rather than in the domain
of popping an item from a List. Maybe From would be better.
And how come a List has an operation Pop? sounds more like a Stack or a
Queue.
next prev parent reply other threads:[~2011-12-15 12:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 0:06 Pop function Rego, P.
2011-12-15 0:29 ` Martin Dowie
2011-12-15 1:23 ` Rego, P.
2011-12-15 2:08 ` Adam Beneschan
2011-12-15 22:59 ` Martin Dowie
2011-12-16 10:27 ` georg bauhaus
2011-12-15 0:34 ` Jeffrey Carter
2011-12-15 1:35 ` Rego, P.
2011-12-15 2:55 ` Alex Mentis
2011-12-15 3:00 ` Alex Mentis
2011-12-15 3:00 ` Jeffrey Carter
2011-12-15 3:41 ` Rego, P.
2011-12-15 8:38 ` Dmitry A. Kazakov
2011-12-15 19:57 ` Jeffrey Carter
2011-12-15 20:15 ` Dmitry A. Kazakov
2011-12-15 21:02 ` Simon Wright
2011-12-15 21:25 ` Jeffrey Carter
2011-12-16 8:23 ` Dmitry A. Kazakov
2011-12-16 0:31 ` Randy Brukardt
2011-12-15 2:06 ` Adam Beneschan
2011-12-15 3:27 ` Rego, P.
2011-12-15 12:43 ` Simon Wright [this message]
2011-12-15 15:54 ` Adam Beneschan
2011-12-15 18:34 ` Simon Wright
2011-12-15 19:14 ` Dmitry A. Kazakov
2011-12-15 16:14 ` Adam Beneschan
2011-12-28 13:04 ` Rego, P.
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