From: David Malcolm <dmalcolm@redhat.com>
To: Marek Polacek <polacek@redhat.com>
Cc: Marc Glisse <marc.glisse@inria.fr>,
Richard Sandiford <rdsandiford@googlemail.com>,
gcc-patches@gcc.gnu.org
Subject: Re: Warn when returning the address of a temporary (middle-end) v2
Date: Tue, 29 Jul 2014 19:47:00 -0000 [thread overview]
Message-ID: <1406662759.2134.124.camel@surprise> (raw)
In-Reply-To: <20140729191318.GZ30336@redhat.com>
On Tue, 2014-07-29 at 21:13 +0200, Marek Polacek wrote:
> On Tue, Jul 29, 2014 at 02:58:03PM -0400, David Malcolm wrote:
> > This is possibly a dumb question, but what happens for a static local,
> > rather than an auto local? e.g.
> >
> > int *f (void)
> > {
> > static int i;
> > return &i;
> > }
>
> This is fine. The variable i has a static storage duration, so is allocated
> when the program begins and is deallocated when the program ends. There's only
> one instance of the variable i.
Sorry, by "what happens" I meant, "is a warning emitted?", and I see
Marc has answered that.
next prev parent reply other threads:[~2014-07-29 19:42 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-22 18:20 Marc Glisse
2014-06-29 9:22 ` Marc Glisse
2014-06-30 21:04 ` Jeff Law
2014-06-30 21:37 ` Marc Glisse
2014-07-02 12:19 ` Alan Modra
2014-07-02 12:41 ` Marc Glisse
2014-07-02 22:39 ` Jeff Law
2014-07-02 22:46 ` Jeff Law
2014-07-18 5:06 ` Jeff Law
2014-07-22 9:04 ` Marc Glisse
2014-07-31 4:54 ` Jeff Law
2014-07-27 18:20 ` Richard Sandiford
2014-07-27 19:09 ` Marc Glisse
2014-07-27 20:45 ` Andreas Schwab
2014-07-27 21:05 ` Marc Glisse
2014-07-29 19:00 ` Marc Glisse
2014-07-29 19:13 ` David Malcolm
2014-07-29 19:22 ` Marek Polacek
2014-07-29 19:47 ` David Malcolm [this message]
2014-07-29 19:28 ` Marc Glisse
2014-07-30 12:00 ` Marc Glisse
2014-07-31 4:58 ` Jeff Law
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