On Monday, 7 April 2025 at 08:47:15 UTC, Richard (Rikki) Andrew Cattermole wrote:
> ...
> For each compiler dmd/ldc/gdc, for each target (win32, win64, linux, osx, ext.), are the unwinding tables compatible with the C++/Objective-c used ones for that target?
> ...

Interoperability between D and C++ exception handling mechanisms is limited and not inherently supported. Therefore, exceptions thrown in one language may not be properly caught or handled by the other.


https://forum.dlang.org/post/mailman.71.1397054005.1648.digitalmars-d@puremagic.com

Have you seen this very old thread?

SDB@79

On 08/04/2025 8:36 AM, Salih Dincer wrote:
> On Monday, 7 April 2025 at 08:47:15 UTC, Richard (Rikki) Andrew Cattermole wrote:
>> ...
>> For each compiler dmd/ldc/gdc, for each target (win32, win64, linux, osx, ext.), are the unwinding tables compatible with the C++/ Objective-c used ones for that target?
>> ...
> 
> Interoperability between D and C++ exception handling mechanisms is limited and not inherently supported. Therefore, exceptions thrown in one language may not be properly caught or handled by the other.

I'm not interested in throwing or catching, just what happens when one is thrown, is the cleanup functions get called as exceptions bubble up?

> https://forum.dlang.org/post/mailman.71.1397054005.1648.digitalmars- d@puremagic.com
> 
> Have you seen this very old thread?
> 
> SDB@79

A long time ago likely, however I know work has happened since then so I'm wanting an up to date status of it.

On Monday, 7 April 2025 at 20:48:06 UTC, Richard (Rikki) Andrew Cattermole wrote:
> ... I'm wanting an up to date status of it.

Look:

https://thephd.dev/_vendor/future_cxx/papers/C%20-%20Improved%20__attribute__%28%28cleanup%29%29%20Through%20defer.html
Published Proposal, 2025-03-18

and:

https://www.llvm.org/docs/ExceptionHandling.html

SDB@79

Asked at monthly meeting.

It mostly will work, however it is implementation defined.