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From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: Naming of Tagged Types and Associated Packages
Date: 1998/09/06
Date: 1998-09-06T00:00:00+00:00	[thread overview]
Message-ID: <m3n28d37qi.fsf@mheaney.ni.net> (raw)
In-Reply-To: 35F27E6D.81DDD0B2@sprintmail.com

"John G. Volan" <johnvolan@sprintmail.com> writes:

> > For example,
> > an object of type  "Speed_In_Knots" is presumably the speed for
> > some particular other entity.  Presuming that that other entity has
> > a meaningful name, then its speed might be named "<entity>_Speed".
> 
> Are you suggesting this sort of redundancy:
> 
>     type Car is ...
>       record
>         ...
>         Car_Color : Color;
>         Car_Speed : Speed_In_Knots;
>         ...
>       end record;
> 
>     ... -- Usage:
>         Some_Car : Car;
>         ... Some_Car.Car_Color ... 
>         ... Some_Car.Car_Speed ...

Your example illustrates why it's probably better to name scalar types
with both qualifier and units:

   type Car_Color is ...;

   type Car_Speed_In_MPH is ...;

   type Car_Type is 
     record
        Speed : Car_Speed_In_MPH;
        Color : Car_Color;
        ...
     end record;

   Car : Car_Type;

   ... Car.Speed ...
   ... Car.Color ...





  reply	other threads:[~1998-09-06  0:00 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-07-16  0:00 Naming of Tagged Types and Associated Packages 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           ` Matthew Heaney
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
1998-07-27  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                   ` 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                                   ` 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 [this message]
1998-09-04  0:00                                               ` John G. Volan
1998-09-05  0:00                                                 ` Matthew Heaney
1998-09-05  0:00                                                   ` John G. Volan
1998-09-04  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                                                 ` John G. Volan
1998-09-06  0:00                                                   ` Matthew Heaney
1998-09-06  0:00                                                 ` Matthew Heaney
1998-09-05  0:00                                               ` John G. Volan
1998-09-05  0:00                                               ` John G. Volan
1998-08-11  0:00                                       ` doylep
1998-08-07  0:00                                   ` Don Harrison
1998-08-05  0:00                           ` Static Polymorphism (Was Re: Naming of Tagged Types...) Brian Rogoff
1998-08-06  0:00                             ` Matthew Heaney
1998-08-06  0:00                               ` Brian Rogoff
1998-07-28  0:00                   ` Naming of Tagged Types and Associated Packages Brian Rogoff
1998-07-29  0:00                     ` Matthew Heaney
1998-07-29  0:00                       ` Brian Rogoff
1998-07-28  0:00             ` Norman H. Cohen
1998-07-28  0:00               ` Matthew Heaney
1998-07-28  0:00               ` Stephen Leake
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
  -- strict thread matches above, loose matches on Subject: below --
1998-07-26  0:00 tmoran
1998-07-27  0:00 ` dennison
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