public inbox for gcc-patches@gcc.gnu.org
 help / color / mirror / Atom feed
From: Jeff Law <law@redhat.com>
To: Tom Tromey <tom@tromey.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>,
	gcc-patches@gcc.gnu.org,
	       Phil Muldoon <pmuldoon@redhat.com>,
	       Alexandre Oliva <aoliva@redhat.com>
Subject: Re: ping: [gcc patch] libcc1: '@' GDB array operator
Date: Wed, 03 Jun 2015 16:31:00 -0000	[thread overview]
Message-ID: <556F2BAE.70303@redhat.com> (raw)
In-Reply-To: <87wpzkhktv.fsf@tromey.com>

On 06/03/2015 09:29 AM, Tom Tromey wrote:
>>> I did not realize that myself before.  I do not think there is an
>>> easy fix for the GCC patch, is it?
>
> It seems like a VLA would work.
Right.  It doesn't seem like a big stretch to me either.

>
> Jeff> 99% of the time I've used a constant with the @ syntax in gdb.
>
> I use a non-constant argument to @ quite a bit.
>
> It's common to have something like the struct hack where the length of
> the array is stored in the struct.  Then when scripting gdb one can
> write:
>
>      print s.array[0] @ s.length
Which is case that I've had use for a non-constant  RHS as well.  I just 
haven't had to use it all that much.

Jeff

  reply	other threads:[~2015-06-03 16:30 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-27 16:36 Jan Kratochvil
2015-04-17 15:17 ` ping: " Jan Kratochvil
2015-05-30  8:33   ` Jeff Law
2015-05-30 12:12     ` Jan Kratochvil
2015-05-31 19:52       ` [gcc patchv2] " Jan Kratochvil
2015-06-03 15:09       ` ping: [gcc patch] " Jeff Law
2015-06-03 15:34         ` Tom Tromey
2015-06-03 16:31           ` Jeff Law [this message]
2015-06-03 18:38             ` Manuel López-Ibáñez
2015-06-03 18:55               ` Tom Tromey
2015-06-03 21:08         ` Jan Kratochvil
2015-06-04  7:36           ` Manuel López-Ibáñez
2015-06-04  8:17             ` Jan Kratochvil
2015-06-04  8:42               ` Manuel López-Ibáñez
2015-06-04  8:56                 ` Jan Kratochvil
2015-06-04  9:15                 ` Jakub Jelinek
2015-06-04 13:36                   ` Jan Kratochvil
2015-06-04 14:03               ` Jeff Law
2015-06-04 14:37                 ` Jan Kratochvil
2015-06-04 14:43                   ` Jeff Law

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=556F2BAE.70303@redhat.com \
    --to=law@redhat.com \
    --cc=aoliva@redhat.com \
    --cc=gcc-patches@gcc.gnu.org \
    --cc=jan.kratochvil@redhat.com \
    --cc=pmuldoon@redhat.com \
    --cc=tom@tromey.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).