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Re: Suspicious warning in W64 build
From: |
Richard Copley |
Subject: |
Re: Suspicious warning in W64 build |
Date: |
Sun, 17 Sep 2017 08:14:41 +0100 |
On 17 September 2017 at 07:42, Paul Eggert <address@hidden> wrote:
> Eli Zaretskii wrote:
>>
>> I don't see how this could be anything but a GCC bug. Yes,
>> buffer_display_table can return NULL, but every place that calls it
>> makes sure the result is non-NULL before dereferencing it. Did I miss
>> something?
>
> Older versions of GCC sometimes "forget" obvious things like that, if they
> are spilled into memory or something (sorry, don't know the details).
>
> Perhaps we should insist on something newer than GCC 5.3 before enabling
> warnings by default, as there is a point of diminishing returns here.
The warning was from GCC 7.2.0.
- Re: Suspicious warning in W64 build, (continued)
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/16
- Re: Suspicious warning in W64 build, Richard Copley, 2017/09/16
- Re: Suspicious warning in W64 build, Richard Copley, 2017/09/16
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/16
- Re: Suspicious warning in W64 build, Richard Copley, 2017/09/16
- Re: Suspicious warning in W64 build, Fabrice Popineau, 2017/09/16
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/16
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/15
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/15
- Re: Suspicious warning in W64 build, Paul Eggert, 2017/09/17
- Re: Suspicious warning in W64 build,
Richard Copley <=
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/17
- Re: Suspicious warning in W64 build, Paul Eggert, 2017/09/17
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/17
- Re: Suspicious warning in W64 build, Fabrice Popineau, 2017/09/17
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/17
- Re: Suspicious warning in W64 build, Paul Eggert, 2017/09/17
- Re: Suspicious warning in W64 build, Fabrice Popineau, 2017/09/18
- Re: Suspicious warning in W64 build, Eli Zaretskii, 2017/09/18
- Re: Suspicious warning in W64 build, Richard Stallman, 2017/09/17
- Re: Suspicious warning in W64 build, Fabrice Popineau, 2017/09/14