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From: Mats Weber <Mats.Weber@elca-matrix.ch>
Subject: Re: Software landmines (was: Why C++ is successful)
Date: 1998/09/07
Date: 1998-09-07T00:00:00+00:00	[thread overview]
Message-ID: <35F3FF42.D1E163E0@elca-matrix.ch> (raw)
In-Reply-To: 35F377B2.456C6374@sprintmail.com

John G. Volan wrote:

> > declare
> >    A : Integer renames Get_A (10);
> >    B : Float renames Get_B (X);
> >    C : Boolean renames Get_C (Y);
> > begin
> >    Op (A, B, C);
> > end;
> 
> I'm curious: Does this have the same effect as the above, i.e., are the
> function calls forced into a sequential order?  Or is their evaluation
> deferred until the aliases A, B, and C are actually used as parameters
> to the Op call, in which case the aliased function calls get executed in
> an undefined order?

Yes, it has the same effect. Each function call is evaluated during the
elaboration of the renames it appears in. You are in fact renaming the object
that contains the function result. (See RM 3.3(10)).




  reply	other threads:[~1998-09-07  0:00 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-08-22  0:00 Software landmines (was: Why C++ is successful) dewar
1998-08-23  0:00 ` Dale Stanbrough
1998-08-23  0:00   ` Andi Kleen
1998-08-23  0:00   ` dewar
1998-08-24  0:00 ` Richard D Riehle
1998-08-25  0:00   ` dennison
1998-08-25  0:00   ` Andi Kleen
1998-08-25  0:00     ` Brian Rogoff
1998-08-28  0:00   ` Matthew Heaney
1998-08-28  0:00     ` Richard D Riehle
1998-08-29  0:00       ` Matthew Heaney
1998-09-06  0:00         ` John G. Volan
1998-09-07  0:00           ` Mats Weber [this message]
1998-09-07  0:00             ` dewarr
1998-09-08  0:00               ` Tucker Taft
1998-09-08  0:00                 ` Precalculation of parameters (was: Software landmines) dennison
1998-09-09  0:00                   ` Tucker Taft
1998-09-09  0:00                     ` dennison
1998-09-10  0:00                       ` Tucker Taft
1998-09-10  0:00                         ` dewarr
1998-09-16  0:00               ` Software landmines (was: Why C++ is successful) Matthew Heaney
1998-08-29  0:00       ` Matthew Heaney
     [not found]   ` <35eca5d9.4354839@news.geccs.gecm.com>
1998-09-01  0:00     ` Richard D Riehle
  -- strict thread matches above, loose matches on Subject: below --
1998-08-06  0:00 Why C++ is successful Robert Dewar
1998-08-07  0:00 ` harald.mueller
1998-08-07  0:00   ` Brian Rogoff
1998-08-07  0:00     ` Timothy Welch
1998-08-08  0:00       ` Robert Dewar
1998-08-08  0:00         ` Jeffrey C. Dege
1998-08-10  0:00           ` Laurent GUERBY
1998-08-12  0:00             ` Andy Ward
1998-08-14  0:00               ` Robert Dewar
1998-08-14  0:00                 ` Software landmines (was: Why C++ is successful) dennison
1998-08-15  0:00                   ` Thaddeus L. Olczyk
1998-08-16  0:00                   ` Jay Martin
1998-08-17  0:00                     ` Robert Dewar
1998-08-16  0:00                   ` Robert Dewar
1998-08-17  0:00                     ` dennison
1998-08-18  0:00                       ` adam
1998-08-19  0:00                         ` Tucker Taft
1998-08-19  0:00                           ` adam
1998-08-19  0:00                       ` ell
1998-08-19  0:00                         ` Charles Hixson
1998-08-19  0:00                         ` adam
1998-08-19  0:00                           ` Dan Higdon
1998-08-20  0:00                             ` adam
1998-08-20  0:00                               ` Dan Higdon
     [not found]                               ` <m33eagru5g.fsf@mheaney.ni.net>
1998-08-31  0:00                                 ` Frank Adrian
1998-08-31  0:00                                   ` Robert I. Eachus
1998-08-31  0:00                                     ` Biju Thomas
1998-08-31  0:00                                       ` Robert Martin
1998-09-01  0:00                                         ` Martin Dowie
1998-09-01  0:00                                       ` Robert I. Eachus
1998-09-02  0:00                                         ` dennison
1998-09-01  0:00                                   ` dewarr
1998-09-06  0:00                                 ` Jonathan Guthrie
1998-08-20  0:00                           ` Ell
1998-08-21  0:00                             ` Ell
1998-08-21  0:00                               ` Larry Brasfield
1998-08-21  0:00                                 ` Bob Collins
1998-08-21  0:00                                 ` Ell
1998-08-21  0:00                                 ` Jeffrey C. Dege
1998-08-20  0:00                                   ` Phlip
1998-08-21  0:00                                   ` Larry Brasfield
     [not found]                                   ` <DOSXjHE9T6DM9Jw9nAyaPxfz@news.rdc1.bc.wave.home.com>
1998-08-22  0:00                                     ` dewar
1998-08-24  0:00                                       ` dennison
1998-08-28  0:00                                         ` Matthew Heaney
1998-08-28  0:00                                           ` dennison
1998-08-30  0:00                                             ` Matthew Heaney
1998-09-06  0:00                                               ` John G. Volan
1998-08-31  0:00                                             ` Robert I. Eachus
1998-08-24  0:00                                       ` Martin Dowie
1998-08-24  0:00                                         ` Martin Dowie
1998-08-24  0:00                                           ` Mark A Biggar
1998-08-25  0:00                                             ` Martin Dowie
1998-08-25  0:00                                               ` Mark A Biggar
1998-08-26  0:00                                                 ` Martin Dowie
1998-08-25  0:00                                         ` adam
1998-09-22  0:00                                       ` Charles H. Sampson
1998-08-21  0:00                               ` John Goodsen
1998-08-21  0:00                                 ` Ell
1998-08-21  0:00                                   ` Ell
1998-08-20  0:00                         ` Gerry Quinn
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