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From: Jelte Fennema-Nio <[email protected]>
To: Tom Lane <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Thomas Munro <[email protected]>
Subject: Re: Make copyObject work in C++
Date: Mon, 8 Dec 2025 16:31:30 +0100
Message-ID: <CAGECzQS6pD+HZs7avaAtp6NmzCNWV+WBC=x0P+RxstDMC4J3-w@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAGECzQR21OnnKiZO_1rLWO0-16kg1JBxnVq-wymYW0-_1cUNtg@mail.gmail.com>
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On Mon, 8 Dec 2025 at 15:51, Tom Lane <[email protected]> wrote:
>
> Peter Eisentraut <[email protected]> writes:
> > AFAICT, both gcc and clang support typeof in C++ mode as well.  So this
> > kind of renaming could be confusing.
>
> Hm, if that's true then we should not have to do anything ...
> so why is Jelte reporting a problem?

Seems it's related to -std=c++17 vs -std=gnu++17. I was compiling my
code with the former, which throws the error in question[1]. Compiling
with the latter works fine[2].

So I guess it depends what we want to require from C++ extensions.
Should we require them to compile with gnu extensions? My opinion on
that would be no.

[1]: https://godbolt.org/z/fz567hs1r
[2]: https://godbolt.org/z/cq1se55bn

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