Re: enable fallthrough warnings on clang

From: Peter Eisentraut <peter(at)eisentraut(dot)org>
To: Jelte Fennema-Nio <postgres(at)jeltef(dot)nl>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: enable fallthrough warnings on clang
Date: 2026-01-21 11:34:42
Message-ID: 955ddaa3-d6e8-4d87-a368-ef9f25960d4e@eisentraut.org
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On 20.01.26 16:03, Jelte Fennema-Nio wrote:
> On Tue, 20 Jan 2026 at 12:16, Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:
>> So my proposal is that we wrap the appropriate attribute into a
>> pg_fallthrough macro, and replace the current comments with that.
>
> All looks okay to me. The only thing that stood out is that it checks
> for C++ with __cpp_attributes instead of __cplusplus. Is it really
> worth using this more specific attribute? Given that we're already
> requiring C++11 and afaict all C++11 compilers should support the
> general notion of attributes.

I agree. I will make that change.

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