comp.lang.ada
 help / color / mirror / Atom feed
From: dennison@telepath.com
Subject: Re: Naming of Tagged Types and Associated Packages
Date: 1998/07/27
Date: 1998-07-27T00:00:00+00:00	[thread overview]
Message-ID: <6pi3n6$i1k$1@nnrp1.dejanews.com> (raw)
In-Reply-To: 6pfs36$8rh@lotho.delphi.com

In article <6pfs36$8rh@lotho.delphi.com>,
  tmoran@bix.com wrote:
> >The addition of tagged types in Ada 95 is good, but it doesn't change
> >implementation techniques that much from Ada 83, because you should
> >already be using type-based abstractions where that makes sense.
>   There are some things Ada 95 lets you do that were *extremely*
> inconvenient, in Ada 83.  Controlled types, which let a task execute

I had need of dynamic dispatching in Ada 83 once. I had to write a big honking
case statement that looked like this:

  case Command.First_Byte is  when Command_1 => 
Command_1_Pkg.Do_It(Unchecked_Convert_To_Command_1_Type(Command));  .  .  . 
when Command_120 => 
Command_120_Pkg.Do_It(Unchecked_Convert_To_Command_120_Type(Command));	end
case;

I spent *weeks* writing that thing. But a tagged type would have made this 20
page routine a 1-liner!

T.E.D.

-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum




  reply	other threads:[~1998-07-27  0:00 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-07-26  0:00 Naming of Tagged Types and Associated Packages tmoran
1998-07-27  0:00 ` dennison [this message]
  -- strict thread matches above, loose matches on Subject: below --
1998-07-16  0:00 taashlo
1998-07-25  0:00 ` Matthew Heaney
1998-07-25  0:00   ` Jean-Pierre Rosen
1998-07-25  0:00     ` Brian Rogoff
1998-07-26  0:00       ` Matthew Heaney
1998-07-26  0:00     ` Matthew Heaney
1998-07-26  0:00       ` nabbasi
1998-07-26  0:00         ` Matthew Heaney
1998-07-26  0:00         ` Robert Dewar
1998-07-27  0:00       ` Jean-Pierre Rosen
1998-07-28  0:00         ` Matthew Heaney
1998-07-28  0:00           ` Jean-Pierre Rosen
1998-07-28  0:00             ` dennison
1998-07-29  0:00               ` Jean-Pierre Rosen
1998-07-29  0:00                 ` dennison
1998-07-29  0:00                   ` Jean-Pierre Rosen
1998-07-30  0:00                     ` dennison
1998-07-30  0:00                       ` Jean-Pierre Rosen
1998-07-29  0:00         ` Robert I. Eachus
1998-07-30  0:00           ` Jean-Pierre Rosen
1998-07-30  0:00             ` Robert I. Eachus
1998-07-31  0:00               ` Jean-Pierre Rosen
1998-07-31  0:00                 ` Robert I. Eachus
1998-08-01  0:00                   ` Jean-Pierre Rosen
1998-08-04  0:00                     ` Matthew Heaney
1998-08-04  0:00                       ` Jean-Pierre Rosen
1998-08-10  0:00                         ` Robert I. Eachus
1998-07-30  0:00           ` Matthew Heaney
1998-07-27  0:00       ` dennison
1998-07-27  0:00         ` Stephen Leake
1998-07-27  0:00           ` dennison
1998-07-27  0:00             ` Brian Rogoff
1998-07-28  0:00               ` dennison
1998-07-28  0:00                 ` Brian Rogoff
1998-07-28  0:00                   ` Brian Rogoff
1998-07-29  0:00                     ` Matthew Heaney
1998-07-29  0:00                       ` Brian Rogoff
1998-07-28  0:00                   ` dennison
1998-07-29  0:00                     ` Matthew Heaney
1998-07-29  0:00                       ` Chris Brand
1998-07-30  0:00                         ` Matthew Heaney
1998-07-30  0:00                           ` dennison
1998-07-30  0:00                             ` Matthew Heaney
1998-07-30  0:00                               ` dennison
1998-08-01  0:00                           ` Simon Wright
1998-08-02  0:00                             ` Matthew Heaney
1998-08-03  0:00                               ` dennison
1998-08-03  0:00                                 ` Matthew Heaney
1998-08-04  0:00                                   ` dennison
1998-08-04  0:00                               ` Jean-Pierre Rosen
1998-08-04  0:00                                 ` Brian Rogoff
1998-08-05  0:00                               ` Don Harrison
1998-08-05  0:00                                 ` Matthew Heaney
1998-08-07  0:00                                   ` Don Harrison
1998-08-13  0:00                                     ` Robert A Duff
1998-08-14  0:00                                       ` Don Harrison
1998-08-14  0:00                                       ` adam
1998-08-05  0:00                                 ` Brian Rogoff
1998-08-07  0:00                                   ` Don Harrison
1998-08-07  0:00                                   ` doylep
1998-08-07  0:00                                     ` Brian Rogoff
1998-08-08  0:00                                       ` Matthew Heaney
1998-08-10  0:00                                       ` doylep
1998-08-10  0:00                                         ` Brian Rogoff
1998-08-10  0:00                                           ` John Volan
1998-08-10  0:00                                           ` John Volan
1998-08-11  0:00                                           ` doylep
1998-08-11  0:00                                             ` Brian Rogoff
1998-08-13  0:00                                               ` Robert A Duff
1998-08-13  0:00                                                 ` Brian Rogoff
1998-09-01  0:00                                                 ` Matthew Heaney
1998-09-01  0:00                                                   ` Dale Stanbrough
1998-09-01  0:00                                                     ` Matthew Heaney
1998-09-01  0:00                                                       ` Bob Collins
1998-09-02  0:00                                                         ` Matthew Heaney
1998-09-04  0:00                                                       ` John G. Volan
1998-08-11  0:00                                         ` Don Harrison
1998-08-11  0:00                                           ` Pat Rogers
1998-08-11  0:00                                             ` Don Harrison
1998-09-01  0:00                                               ` Matthew Heaney
1998-08-13  0:00                                         ` Robert A Duff
1998-08-13  0:00                                           ` Brian Rogoff
1998-08-15  0:00                                             ` Don Harrison
1998-08-15  0:00                                               ` Jean-Pierre Rosen
1998-08-18  0:00                                                 ` Don Harrison
1998-08-14  0:00                                           ` Don Harrison
1998-08-17  0:00                                             ` doylep
1998-08-19  0:00                                               ` Don Harrison
1998-08-12  0:00                                       ` Don Harrison
1998-08-08  0:00                                     ` Matthew Heaney
1998-08-08  0:00                                       ` John G. Volan
1998-08-09  0:00                                         ` Matthew Heaney
1998-08-10  0:00                                           ` John G. Volan
1998-08-11  0:00                                             ` Don Harrison
1998-08-11  0:00                                               ` geoff
1998-08-11  0:00                                             ` John Volan
1998-08-31  0:00                                             ` Matthew Heaney
1998-08-31  0:00                                               ` Tucker Taft
1998-09-06  0:00                                                 ` John G. Volan
1998-09-06  0:00                                                   ` Matthew Heaney
1998-09-04  0:00                                               ` John G. Volan
1998-09-05  0:00                                                 ` John G. Volan
1998-09-06  0:00                                                   ` Matthew Heaney
1998-09-06  0:00                                                 ` Matthew Heaney
1998-09-04  0:00                                               ` John G. Volan
1998-09-06  0:00                                                 ` Matthew Heaney
1998-09-06  0:00                                                   ` John G. Volan
1998-09-06  0:00                                                     ` Brian Rogoff
1998-09-06  0:00                                                       ` John G. Volan
1998-09-07  0:00                                                         ` Brian Rogoff
1998-09-07  0:00                                                           ` John G. Volan
1998-09-16  0:00                                                             ` Matthew Heaney
1998-09-06  0:00                                                   ` John G. Volan
1998-09-04  0:00                                               ` John G. Volan
1998-09-05  0:00                                                 ` Matthew Heaney
1998-09-05  0:00                                                   ` John G. Volan
1998-09-05  0:00                                               ` John G. Volan
1998-09-05  0:00                                               ` John G. Volan
1998-08-11  0:00                                       ` doylep
1998-07-28  0:00             ` Norman H. Cohen
1998-07-28  0:00               ` Stephen Leake
1998-07-28  0:00               ` Matthew Heaney
1998-07-28  0:00         ` Matthew Heaney
1998-07-28  0:00           ` Jean-Pierre Rosen
1998-07-28  0:00             ` Matthew Heaney
1998-07-28  0:00               ` dennison
1998-07-29  0:00                 ` Matthew Heaney
1998-07-30  0:00                 ` Robert Dewar
1998-07-30  0:00                   ` Matthew Heaney
1998-08-06  0:00         ` Robert A Duff
1998-08-06  0:00           ` Matthew Heaney
1998-08-06  0:00             ` Tucker Taft
1998-08-31  0:00               ` Matthew Heaney
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox