From: Keith Thompson <kst-u@mib.org>
Subject: Re: Latest suggestion for 202x
Date: Sat, 22 Jun 2019 10:39:24 -0700
Date: 2019-06-22T10:39:24-07:00 [thread overview]
Message-ID: <lnv9wxikoj.fsf@kst-u.example.com> (raw)
In-Reply-To: qekpav$g8o$1@franka.jacob-sparre.dk
"Randy Brukardt" <randy@rrsoftware.com> writes:
> "Keith Thompson" <kst-u@mib.org> wrote in message
> news:lnd0j6kdsl.fsf@kst-u.example.com...
> ...
>> In my example, if A is an array variable and I've written
>> A(I) = 42;
>> I *can't* replace A by a function without modifying the code that uses
>> it. Array indexing can appear on the LHS of an assignment; a function
>> call cannot (or at least could not until recently).
>
> That's not strictly true, as anyone who's tried to write an Ada compiler
> knows. Even in Ada 83, you had to resolve assignments that are overloaded on
> both sides (the ACATS insists on it):
>
> Func(I).all := Func2(J);
>
> or
>
> Func(I).C := Func3(K);
>
> You're right, of course, that you can't put a function there without a
> dereference (explicit or implicit). And that's still true, we've just hidden
> the dereference even better.
I should have said that an array indexing operation cannot appear *as*
the LHS of an assignment. Of course either an array indexing operation
or a function call can be *part of* the LHS of an assignment.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */
next prev parent reply other threads:[~2019-06-22 17:39 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-15 23:59 Latest suggestion for 202x Micah Waddoups
2019-06-16 5:14 ` Jerry
2019-06-16 7:17 ` Dmitry A. Kazakov
2019-06-16 10:22 ` Egil H H
2019-06-16 16:54 ` Maciej Sobczak
2019-06-16 20:09 ` Dmitry A. Kazakov
2019-06-17 6:54 ` Egil H H
2019-06-17 7:42 ` J-P. Rosen
2019-06-17 12:01 ` Mart van de Wege
2019-06-17 13:35 ` Maciej Sobczak
2019-06-17 15:20 ` Dmitry A. Kazakov
2019-06-17 15:32 ` Paul Rubin
2019-06-17 16:43 ` Dmitry A. Kazakov
2019-06-17 21:38 ` Keith Thompson
2019-06-18 15:48 ` Jeffrey R. Carter
2019-06-20 22:21 ` Randy Brukardt
2019-06-21 9:42 ` Dmitry A. Kazakov
2019-06-21 18:12 ` Keith Thompson
2019-06-21 18:43 ` Dmitry A. Kazakov
2019-06-21 20:24 ` Keith Thompson
2019-06-22 6:54 ` Dmitry A. Kazakov
2019-06-22 8:43 ` Randy Brukardt
2019-06-22 9:00 ` Dmitry A. Kazakov
2019-06-22 17:44 ` Keith Thompson
2019-06-22 18:34 ` Bill Findlay
2019-06-22 18:37 ` Dmitry A. Kazakov
2019-06-23 7:38 ` G.B.
2019-06-23 8:29 ` Dmitry A. Kazakov
2019-06-23 18:34 ` Optikos
2019-06-23 19:20 ` Dennis Lee Bieber
2019-06-22 20:48 ` Optikos
2019-06-22 20:53 ` Optikos
2019-06-23 17:42 ` Dennis Lee Bieber
2019-06-24 5:07 ` J-P. Rosen
2019-06-24 5:40 ` Paul Rubin
2019-06-24 7:16 ` Niklas Holsti
2019-06-26 18:00 ` Stephen Leake
2019-06-24 13:07 ` J-P. Rosen
2019-06-24 11:12 ` Stefan.Lucks
2019-06-24 12:06 ` Niklas Holsti
2019-06-24 20:22 ` Randy Brukardt
2019-06-24 20:32 ` Keith Thompson
2019-06-24 20:47 ` Jeffrey R. Carter
2019-06-24 13:10 ` J-P. Rosen
2019-06-22 8:36 ` Randy Brukardt
2019-06-22 17:39 ` Keith Thompson [this message]
2019-06-16 19:34 ` Optikos
2019-06-16 20:10 ` John Perry
2019-06-16 20:57 ` Optikos
2019-06-16 21:36 ` Dmitry A. Kazakov
2019-06-17 16:48 ` G. B.
2019-06-17 17:12 ` Paul Rubin
2019-06-16 21:41 ` Lucretia
2019-06-19 2:36 ` Micah Waddoups
2019-06-19 11:14 ` Lucretia
2019-06-19 11:45 ` briot.emmanuel
2019-06-19 14:34 ` Optikos
2019-06-19 19:29 ` Lucretia
2019-06-19 16:12 ` G. B.
2019-06-23 20:17 ` Per Sandberg
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