Re: Make copyObject work in C++

Jelte Fennema <postgres@jeltef.nl>

From: Jelte Fennema-Nio <postgres@jeltef.nl>

To: Peter Eisentraut <peter@eisentraut.org>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Thomas Munro <thomas.munro@gmail.com>

Date: 2026-02-28T11:31:24Z

Lists: pgsql-hackers

On Fri, 27 Feb 2026 at 17:52, Peter Eisentraut <peter@eisentraut.org> wrote:
> Have you tested whether/how these configure/meson tests work if no C++
> compiler is found?
>
> (I haven't, I'm just wondering.)

I hadn't before, but done now. It compiles postgres without problems
(but without the cplusplusext extension ofcourse). For meson the new
meson checks are inside have_cxx, so they are not run at all. For
configure the checks are run, but they detect typeof as not available
in C++ (because its unable to compile the test program).

Commits

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

Enable test_cplusplusext with MSVC
- c05ad248f99c 19 (unreleased) landed
Disable some C++ warnings in MSVC
- 82a7cbea747c 19 (unreleased) landed
meson: Make room for C++-only warning flags for MSVC
- 4c83f1253593 19 (unreleased) landed
Make fixed-length list building macros work in C++
- f8e7ca328510 19 (unreleased) landed
Make unconstify and unvolatize use StaticAssertVariableIsOfTypeMacro
- 258248d0bdbf 19 (unreleased) landed
Use typeof everywhere instead of compiler specific spellings
- e2308350c9b7 19 (unreleased) landed
Test List macros in C++ extensions
- 3d28ecb5ac76 19 (unreleased) landed
Test most StaticAssert macros in C++ extensions
- 451650eaacd5 19 (unreleased) landed
Revert "Change copyObject() to use typeof_unqual"
- 0af05b5dbb42 19 (unreleased) landed
Fix for C++ compatibility
- b4555cb070f1 19 (unreleased) landed
tests: Add a test C++ extension module
- 476b35d4e311 19 (unreleased) landed