comp.lang.ada
 help / color / mirror / Atom feed
From: dewar@schonberg.cs.nyu.edu (Robert Dewar)
Subject: Re: Rules for Representation of Subtypes
Date: 1996/09/27
Date: 1996-09-27T00:00:00+00:00	[thread overview]
Message-ID: <dewar.843880244@schonberg> (raw)
In-Reply-To: mheaney-ya023180002609962246250001@news.ni.net


Matthew says

""If the size of a type of a first named subtype T has been specified by a
length clause, the T'Size yields the specified size, AND THE SIZE OF EVERY
SUBTYPE OF T IS ALSO THIS VALUE [my emphasis].""

This is an Ada 83 AI. For whatever  reasons, the Ada 95 RM does not follow
this AI, or permit compilers to follow it. RM 95 requires that subtypes
have a different size from the first subtype if the range is static and
a smaller type is possible.





  reply	other threads:[~1996-09-27  0:00 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-09-22  0:00 Rules for Representation of Subtypes Matthew Heaney
1996-09-23  0:00 ` Robert A Duff
1996-09-24  0:00   ` Matthew Heaney
1996-09-26  0:00     ` Robert A Duff
1996-09-26  0:00       ` Larry Kilgallen
1996-09-27  0:00         ` Robert A Duff
1996-09-27  0:00           ` Mark A Biggar
1996-09-30  0:00             ` Robert A Duff
1996-10-01  0:00               ` Larry Kilgallen
1996-10-01  0:00                 ` Samuel Tardieu
1996-10-01  0:00                   ` Valid Attribute and Unchecked Conversion Matthew Heaney
1996-10-02  0:00                     ` Robert A Duff
1996-10-04  0:00                       ` Keith Thompson
1996-10-04  0:00                         ` Matthew Heaney
1996-10-07  0:00                           ` Robert Dewar
1996-10-09  0:00                             ` Keith Thompson
1996-10-04  0:00                         ` Robert A Duff
1996-10-04  0:00                           ` Robert Dewar
1996-10-11  0:00                             ` Norman H. Cohen
1996-10-12  0:00                               ` Robert Dewar
1996-10-06  0:00                           ` Keith Thompson
1996-10-07  0:00                             ` Robert Dewar
1996-10-09  0:00                               ` Keith Thompson
1996-10-07  0:00                           ` Ken Garlington
1996-10-08  0:00                           ` Alan Brain
1996-10-07  0:00                         ` Kenneth Almquist
1996-10-07  0:00                         ` Robert Dewar
1996-10-10  0:00                           ` Ken Garlington
1996-10-11  0:00                             ` Robert Dewar
1996-10-14  0:00                               ` Keith Thompson
1996-10-14  0:00                               ` Ken Garlington
1996-10-01  0:00                   ` Rules for Representation of Subtypes Ken Garlington
1996-10-01  0:00                 ` Robert A Duff
1996-09-28  0:00           ` Larry Kilgallen
1996-09-29  0:00             ` Robert A Duff
1996-09-29  0:00               ` Larry Kilgallen
1996-09-29  0:00                 ` Matthew Heaney
1996-09-30  0:00                 ` Robert A Duff
1996-10-01  0:00                   ` Ken Garlington
1996-10-02  0:00                     ` Robert A Duff
1996-10-02  0:00                       ` Ken Garlington
1996-10-06  0:00                   ` Robert Dewar
1996-09-29  0:00               ` Matthew Heaney
1996-09-30  0:00                 ` Robert Dewar
1996-09-30  0:00                   ` Matthew Heaney
1996-09-30  0:00                 ` Robert A Duff
1996-10-03  0:00             ` Robert Dewar
1996-10-02  0:00         ` Valid Attribute and Unchecked Conversion George Haddad
1996-10-03  0:00           ` John Herro
1996-10-04  0:00             ` Karl Cooper {46901}
1996-10-07  0:00               ` Mark A Biggar
1996-10-08  0:00                 ` Robert Dewar
1996-10-05  0:00             ` Robert Dewar
1996-10-06  0:00               ` Keith Thompson
1996-10-14  0:00                 ` Robert A Duff
1996-10-02  0:00         ` Robert I. Eachus
1996-10-02  0:00           ` Matthew Heaney
1996-09-27  0:00       ` Rules for Representation of Subtypes Matthew Heaney
1996-09-27  0:00         ` Robert A Duff
1996-09-23  0:00 ` David C. Hoos, Sr.
1996-09-23  0:00   ` Robert A Duff
1996-09-23  0:00   ` Samuel T. Harris
1996-09-26  0:00     ` David C. Hoos, Sr.
1996-09-24  0:00   ` Robert Dewar
1996-09-26  0:00     ` Keith Thompson
1996-09-26  0:00       ` Matthew Heaney
1996-09-27  0:00         ` Robert Dewar [this message]
1996-09-27  0:00         ` Robert A Duff
1996-09-27  0:00           ` Robert Dewar
1996-09-27  0:00       ` Robert A Duff
1996-09-24  0:00   ` Robert Dewar
  -- strict thread matches above, loose matches on Subject: below --
1996-09-28  0:00 Robert Dewar
1996-09-29  0:00 ` Robert A Duff
1996-09-29  0:00   ` Matthew Heaney
1996-09-28  0:00 Robert Dewar
1996-09-29  0:00 ` Robert A Duff
1996-09-29  0:00   ` Matthew Heaney
1996-09-29  0:00   ` Robert Dewar
1996-09-30  0:00     ` Art Schwarz
1996-09-30  0:00       ` Robert A Duff
1996-10-01  0:00       ` Larry Kilgallen
1996-10-01  0:00         ` Brian R. Hanson
1996-10-01  0:00         ` Robert A Duff
1996-09-28  0:00 Robert Dewar
1996-09-30  0:00 ` Keith Thompson
1996-10-02  0:00 Franco Mazzanti
1996-10-03  0:00 ` Robert A Duff
1996-10-03  0:00 Franco Mazzanti
1996-10-03  0:00 ` Robert A Duff
1996-10-10  0:00 W. Wesley Groleau (Wes)
1996-10-10  0:00 ` Robert Dewar
1996-10-11  0:00 ` Ken Garlington
replies disabled

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