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Re: intprops.h xalloc-oversized.h: fix typos and port to gcc-7


From: Jim Meyering
Subject: Re: intprops.h xalloc-oversized.h: fix typos and port to gcc-7
Date: Mon, 29 Aug 2016 16:35:40 -0700

On Mon, Aug 29, 2016 at 3:58 PM, Jim Meyering <address@hidden> wrote:
> On Mon, Aug 29, 2016 at 12:05 PM, Paul Eggert <address@hidden> wrote:
>> Jim Meyering wrote:
>>
>>> Good catch.
>>> Thanks.
>>
>>
>> In trying it out on GNU Emacs with GCC 6.2 I ran into another problem: it
>> complains at compile-time if __builtin_add_overflow's 3rd arg is null. In
>> some GCC versions this is supposed to discard the value, but I guess that
>> capability is superseded by __builtin_add_overflow_p. So I installed the
>> attached additional patch, which avoids the need for a null argument so we
>> don't have to worry about GCC version details there.
>
> Thanks for making that work with 6.2
> I noticed that you did not update the use in lib/xalloc-oversized.h,
> and that too fails to compile with gcc-6.2.

I've just pushed this to fix it:

Attachment: xalloc-oversized.h-port-to-gcc-6.2.0.diff
Description: Text document


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