[cpp-threads] Issue 1369 --- thread safety of std::rethrow_exception

[Anthony Williams]

On 16/11/10 14:33, Howard Hinnant wrote:
> On Nov 16, 2010, at 3:00 AM, Anthony Williams wrote:
>
>> In order to clone exceptions you need two things: the size of the
>> object to clone (so you can allocate space for the new one), and
>> the ability to call the copy constructor so you can actually do the
>> copy.
>>
>> I've looked at the Itanium ABI at
>> http://www.codesourcery.com/public/cxx-abi/abi.html to try and see
>> where this could be done.

[snip suggestions]

>> What do you think?
>
> I've only skimmed your suggestion and not studied it in detail, but
> it seems plausible.  And requiring a recompile of the "throwing code"
> for rethrow_exception to function correctly would be acceptable.

Great.

> But now comes the hard part.  Getting it implemented and signed-off
> by http://www.codesourcery.com/public/cxx-abi/abi.html.  They worry
> about ABI compatibility too and have more expertise in this area than
> I do.

I'll post there and see what people think.

Anthony
-- 
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