Re: warning: comparison of integer expressions of different signedness related to simd.h

From: John Naylor <john(dot)naylor(at)enterprisedb(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: warning: comparison of integer expressions of different signedness related to simd.h
Date: 2022-09-03 05:50:24
Message-ID: CAFBsxsHRxZ_4Hgqpa2yjDCh5gLHbSivkUHaZrYc1p2ctQt51WQ@mail.gmail.com
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On Sat, Sep 3, 2022 at 12:30 PM Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
>
> Hi
>
> I got fresh warnings when I build an extension
>
> In file included from /usr/local/pgsql/master/include/server/mb/pg_wchar.h:22,
> from src/format.c:17:
> /usr/local/pgsql/master/include/server/port/simd.h: In function ‘vector8_has’:
> /usr/local/pgsql/master/include/server/port/simd.h:168:27: warning: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Wsign-compare]
> 168 | for (int i = 0; i < sizeof(Vector8); i++)
> | ^

"int" should probably be "Size" -- does that remove the warning?

--
John Naylor
EDB: http://www.enterprisedb.com

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