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From: fraser@nospam.com
Subject: Re: should I be interested in ada?
Date: 1999/02/18
Date: 1999-02-18T00:00:00+00:00	[thread overview]
Message-ID: <7ai8ji$q8q$1@remarQ.com> (raw)
In-Reply-To: 36CC11A1.C7A71642@hercii.mar.lmco.com

I nearly cried when gpetrey@hercii.mar.lmco.com said:

>>    X: array (1..10) of Float;
>>    ...
>>    for i in X'Range loop X(i) := 1.0; end loop;

>I think using an aggregate would be much better than a loop:

>X := (1 .. 10 => 1.0);

In this situation, I usually use

   X := (others => 1.0);

to avoid a dependency on the array bounds.  In fact, one of my favourite
things about Ada is the various ways in which you can specify a range.
I generally pick the lowest one on the following list that's available
in the context:

   for I in 1 .. 10 loop
   for I in Low .. High loop
   for I in Discrete_Type loop
   for I in Array_Type'Range loop
   for I in Array_Object'Range loop

(I think I read this in the Quality and Style Guide).

Btw: I love the Fortran 90 'where' feature ... anything that avoids
looping over an array performing an identical operation on each element
has to be a Good Thing.

Fraser.
--
Fraser Wilson   |  700 East Middlefield Rd  |  Phone:  650 943 5270
Sr R&D Engineer |  Mountain View, CA 94043  |  Fax:    650 934 1227
Synopsys Inc    |  USA                      |  Email:  ^nospam^synopsys
           Ada, Linux, PowerPC: The Golden Triangle




  reply	other threads:[~1999-02-18  0:00 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-02-14  0:00 should I be interested in ada? Phillip Helbig
1999-02-15  0:00 ` Gautier
1999-02-15  0:00 ` Marin David Condic
1999-02-23  0:00   ` David Starner
1999-02-16  0:00 ` Ken Thomas
1999-02-17  0:00   ` Nick Roberts
1999-02-18  0:00     ` robert_dewar
1999-02-18  0:00       ` Nick Roberts
1999-02-18  0:00         ` robert_dewar
1999-02-19  0:00           ` Nick Roberts
1999-02-19  0:00             ` robert_dewar
1999-02-19  0:00               ` Nick Roberts
1999-02-20  0:00                 ` robert_dewar
1999-02-20  0:00                   ` Steve Doiel
1999-02-20  0:00                 ` robert_dewar
1999-02-22  0:00                   ` Nick Roberts
1999-02-23  0:00                     ` Robert I. Eachus
1999-02-24  0:00                       ` White rabbit (was: should I be interested in ada?) dennison
1999-02-25  0:00                       ` Alice books " JP Thornley
1999-02-25  0:00                         ` Robert I. Eachus
1999-02-22  0:00                   ` should I be interested in ada? dennison
1999-02-19  0:00               ` William Clodius
1999-02-19  0:00               ` dennison
1999-02-19  0:00                 ` Nick Roberts
1999-02-20  0:00                   ` robert_dewar
1999-02-22  0:00                     ` Nick Roberts
1999-02-19  0:00                 ` robert_dewar
1999-02-19  0:00                 ` William Clodius
1999-02-19  0:00               ` Phillip Helbig
1999-02-18  0:00         ` Jerry Petrey
1999-02-18  0:00           ` fraser [this message]
1999-02-19  0:00             ` Matthew Heaney
1999-02-20  0:00               ` fraser
1999-02-18  0:00           ` Nick Roberts
1999-02-18  0:00             ` Joel Seidman
1999-02-18  0:00             ` Dan Nagle
1999-02-18  0:00               ` nabbasi
1999-02-19  0:00               ` Nick Roberts
1999-02-19  0:00                 ` Dan Nagle
1999-02-19  0:00                   ` robert_dewar
1999-02-19  0:00                     ` Nick Roberts
1999-02-19  0:00                     ` Dan Nagle
1999-02-23  0:00                     ` Peter Hermann
1999-02-19  0:00                 ` robert_dewar
1999-02-19  0:00                   ` Nick Roberts
1999-02-19  0:00                     ` William Clodius
1999-02-20  0:00                       ` Nick Roberts
1999-02-21  0:00                         ` robert_dewar
1999-02-21  0:00                           ` William Clodius
1999-02-22  0:00                           ` Nick Roberts
1999-02-19  0:00                     ` robert_dewar
1999-02-21  0:00                       ` William Clodius
1999-02-23  0:00                         ` Robert I. Eachus
1999-02-18  0:00         ` William Clodius
1999-02-18  0:00           ` nabbasi
1999-02-18  0:00             ` robert_dewar
1999-02-18  0:00           ` robert_dewar
1999-02-19  0:00             ` William Clodius
1999-02-19  0:00               ` Nick Roberts
1999-02-20  0:00                 ` robert_dewar
1999-02-22  0:00                   ` Nick Roberts
1999-02-22  0:00                     ` William Clodius
1999-02-23  0:00                     ` robert_dewar
1999-02-23  0:00                       ` Nick Roberts
1999-02-22  0:00                 ` William Clodius
1999-02-23  0:00                   ` Nick Roberts
1999-02-23  0:00                     ` William Clodius
1999-02-25  0:00                       ` Nick Roberts
1999-02-25  0:00                         ` robert_dewar
1999-02-23  0:00               ` Robert I. Eachus
1999-02-24  0:00                 ` William Clodius
1999-02-24  0:00                 ` Nick Roberts
1999-02-26  0:00                   ` Robert A Duff
1999-02-27  0:00                     ` Semantic info pragmas (was: should I be interested in ada?) Nick Roberts
1999-03-01  0:00                       ` Samuel Tardieu
1999-03-01  0:00                         ` Robert A Duff
1999-02-24  0:00               ` should I be interested in ada? William Clodius
1999-02-25  0:00                 ` Nick Roberts
1999-02-25  0:00                   ` robert_dewar
1999-02-26  0:00                     ` Nick Roberts
1999-02-18  0:00     ` robert_dewar
1999-02-18  0:00       ` Nick Roberts
1999-02-18  0:00         ` William Clodius
1999-02-18  0:00           ` dennison
1999-02-20  0:00 ` Hartmut H. Schaefer
1999-02-20  0:00   ` bill
1999-02-21  0:00     ` dewar
1999-02-21  0:00   ` dewar
1999-02-22  0:00     ` dennison
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