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Re: C11 / VS 2019

Peter Eisentraut <peter@eisentraut.org>

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From: Peter Eisentraut <peter@eisentraut.org>
To: Yura Sokolov <y.sokolov@postgrespro.ru>, Michael Paquier <michael@paquier.xyz>, Nathan Bossart <nathandbossart@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2025-06-04T06:22:14Z
Lists: pgsql-hackers 
On 03.06.25 10:01, Yura Sokolov wrote:
> Will it mean we can implement atomics in term of C11 atomics?
> Aside for VS 2019, which has no support for. (But VS 2022 already has.)
> So instead of numerous variants we could just differ VS2019 vs plain C11.

I wrote:

"""
GCC details: The oldest gcc version that we currently need to support is 
gcc 4.8, which comes with RHEL 7.  As alluded to above, some C11 
features came later with gcc 4.9, specifically generic, threads, and 
atomics.  I think it would still be useful to move forward without those 
features.
"""

So there is additional homework to do there.

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Raise C requirement to C11

  2. meson: Move C99 test earlier

  3. Enable MSVC conforming preprocessor

  4. Make parseNodeString() C idiom compatible with Visual Studio 2015.