From: Jason Merrill <jason@redhat.com>
To: Martin Sebor <msebor@gmail.com>, Marek Polacek <polacek@redhat.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: C++ PATCH for c++/69496 (ICE on VLA in constexpr function)
Date: Wed, 27 Jan 2016 21:08:00 -0000 [thread overview]
Message-ID: <56A931C2.7020602@redhat.com> (raw)
In-Reply-To: <56A8F5BD.4010104@gmail.com>
On 01/27/2016 11:52 AM, Martin Sebor wrote:
> I agree that there is some risk that it might break some working
> programs. I would expect the most common use of initialized VLAs
> be to set all elements to zero using the "= { }" or "= { 0 }"
> syntax. Initializers with more elements are, IMO, likely to be
> a bug where the user doesn't realize they defined a VLA rather
> than an ordinary array. Since VLAs are required to have at least
> 1 element, would diagnosing initializers with more than one element
> more loudly (such as by default or with -Wall as opposed to with
> -Wpedantic) be a good solution?
That makes sense to me.
Jason
next prev parent reply other threads:[~2016-01-27 21:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 23:02 Marek Polacek
2016-01-27 3:58 ` Martin Sebor
2016-01-27 11:20 ` Marek Polacek
2016-01-27 16:52 ` Martin Sebor
2016-01-27 21:08 ` Jason Merrill [this message]
2016-01-28 22:27 ` Marek Polacek
2016-01-29 3:29 ` Martin Sebor
2016-01-27 14:08 ` Jason Merrill
2016-01-27 14:11 ` Marek Polacek
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