[cxx-abi-dev] Discuss DFP mangling was(Re: [cxx-abi-dev] C++0x: mangling of char16_t and char32_t)

Dennis Handly dhandly at cup.hp.com
Wed Mar 26 08:26:18 UTC 2008


>From: Michael Wong <michaelw at ca.ibm.com>
>I would prefer if we hold off using q for now, as it is in a contentious
>mode for one of the DFP manglings which I still have to discuss with other
>C++ ABI members for an alternative:

Right, we kind of dropped the discussion.

>One of the issue is the same which is a wish for a more descriptive
>mangling.

Descriptive as in terms of the C++ template class name?  Or using Dx?

>So in summary, I would appreciate it if you would avoid this area until we
>can settle this issue.
Michael Wong

Seems reasonable.
Or for char16_t and char32_t can use two letters.

>From: "Doug Gregor" <doug.gregor at gmail.com>
>It makes life easier for other tool vendors if name mangling is the
>same across different compilers.

Right.  And if the demangling is unambiguous with very simple grammar,
FSM.

>GCC recently received a patch that adds support for char16_t and
>char32_t, so that forces the issue a bit.
  - Doug

Just a decision but not which chars?

>From: Michael Wong <michaelw at ca.ibm.com>
>I am soliciting folks who are interested in this DFP name mangling discussion.
>Some folks that I am aware of are:
>Dennis Handly, Prem Rao, Daveed Vandevoorde

I assume Prem and I will go along with what EDG does.
Provided the demangling doesn't need advanced AI technology.

>so may be that should be Mark, who can also work as arbitrator in case
>we need it.

Ok.  It seems Mark was feeling left out.  :-)

>I am proposing we have a phone call this week or next. Due to the
>cross-coast nature, I would suggest it in the afternoon so West coast
>(where Dennis is) can join.
>Lets say Thursday Mar 27, at 4-5 EST, or 1-2 PST.

It doesn't have to be 1 pm, I can get a little earlier, 11 am.
Prem and I have meetings at 12 PDT on Thu.

>If this does not work, I would propose next Monday, Mar 31 4-5 EST or
>1-2 PST.
>Can folks reply on their availability and I will set out a telecon number?
Michael Wong

That's fine for me but Prem has an issue.  I'm not sure if it is the day
or the time?

>From: David Vandevoorde <daveed at edg.com>
>Thursday doesn't work for me.  Monday afternoon should be okay.

>From: Mark Mitchell <mark at codesourcery.com>
>Although I'm not sure that I have anything terribly intelligent 
>to say. :-)

Well, at the Superbowl, they have VIPs to flip the coin.  ;-)
Michael also says you get to be the umpire.



More information about the cxx-abi-dev mailing list