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From: Michael Matz <matz@suse.de>
To: Richard Guenther <richard.guenther@gmail.com>
Cc: Eric Botcazou <ebotcazou@adacore.com>,
	Lawrence Crowl <crowl@googlers.com>,
	gcc-patches@gcc.gnu.org,	Jan Hubicka <hubicka@ucw.cz>,
	Diego Novillo <dnovillo@google.com>
Subject: Re: Use conditional casting with symtab_node
Date: Thu, 20 Sep 2012 13:25:00 -0000	[thread overview]
Message-ID: <alpine.LNX.2.00.1209201506410.9940@wotan.suse.de> (raw)
In-Reply-To: <CAFiYyc0S1Lx+igS-6s=Y=K2hyZdBFJ_kzLjU8x+EkAy--4ve5A@mail.gmail.com>

Hi,

On Wed, 19 Sep 2012, Richard Guenther wrote:

> > Just write:
> >
> >   varpool_node *vnode;
> >
> >   if ((vnode = node->try_variable ()) && vnode->finalized)
> >     varpool_analyze_node (vnode);
> >
> > This has been the standard style for the past 2 decades and trading it for
> > cascading if's is really a bad idea.
> 
> Indeed.  Btw, can we not provide a specialization for dynamic_cast <>?
> This ->try_... looks awkward to me compared to the more familiar
> 
>   vnode = dynamic_cast <varpool_node> (node)

Gah.  The less '<>' characters in source code the better.  I'm not 
thrilled, but prefer the ->try_ thingy.  And yes, cascading if's for this 
idiom is bad.


Ciao,
Michael.

  parent reply	other threads:[~2012-09-20 13:08 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-18 18:02 Lawrence Crowl
2012-09-18 18:09 ` Eric Botcazou
2012-09-18 18:37   ` Lawrence Crowl
2012-09-19  7:31     ` Eric Botcazou
2012-09-19  9:17       ` Richard Guenther
2012-09-19 12:19         ` Gabriel Dos Reis
2012-09-19 19:04           ` Lawrence Crowl
2012-09-19 21:28             ` Gabriel Dos Reis
2012-09-19 22:03               ` Lawrence Crowl
2012-10-11  5:31             ` Xinliang David Li
2012-09-20 13:25         ` Michael Matz [this message]
2012-10-11  5:22         ` Xinliang David Li
2012-10-11 20:26           ` Lawrence Crowl
2012-10-11 20:41             ` Xinliang David Li
2012-10-12  8:24               ` Richard Biener
2012-10-12 19:43                 ` Xinliang David Li
2012-10-13 17:56                 ` Lawrence Crowl
2012-10-13 18:04                   ` Gabriel Dos Reis
2012-10-14 17:08                 ` Diego Novillo
2012-09-19 18:39       ` Lawrence Crowl
2012-09-20 13:26         ` Michael Matz
2012-09-20 20:01           ` Lawrence Crowl
2012-09-20 22:02             ` Gabriel Dos Reis
2012-09-20 22:06               ` Lawrence Crowl
2012-09-18 19:57 ` Richard Guenther
2012-09-18 20:32   ` Lawrence Crowl
2012-09-22  6:07 ` Lawrence Crowl
2012-09-25 21:25   ` Lawrence Crowl
2012-10-03  0:32   ` Lawrence Crowl
2012-10-03 12:07     ` Martin Jambor
2012-10-03 16:53       ` Lawrence Crowl
2012-10-04  8:00         ` Richard Guenther
2012-10-04 18:14           ` Lawrence Crowl
2012-10-04 18:17             ` Diego Novillo
2012-10-05  8:50               ` Richard Guenther
2012-10-05  9:52                 ` Jan Hubicka
2012-10-10  0:58                   ` Lawrence Crowl
2012-10-10 23:46                     ` Diego Novillo
2012-10-05 10:50                 ` Nathan Froyd
2012-10-05 11:05                   ` Richard Guenther
2012-10-05 12:44                     ` Diego Novillo
2012-10-05 13:58                       ` Steven Bosscher
2012-10-05 14:07                       ` Steven Bosscher
2012-10-05 21:50                       ` Lawrence Crowl
2012-10-05 22:04                         ` Steven Bosscher
2012-10-11  6:49                 ` Xinliang David Li
2012-10-11 13:11                   ` Richard Biener

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