Fw: [cxx-abi-dev] Decimal Floating Point mangling was(Fw: [cxx-abi-dev] C++0x: Mangling of rvalue reference type)s

[Michael Wong]

Michael Wong
XL C++ Compiler kernel Development
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----- Forwarded by Michael Wong/Toronto/IBM on 06/29/2007 01:24 AM -----

Dennis Handly <dhandly at cup.hp.com> wrote on 06/28/2007 07:24:47 PM:

> >From: Michael Wong <michaelw at ca.ibm.com>
> >Also I meant to add that for Decimal Floating Point
> >     Decimal32:          "p"
> >     Decimal64:          "q"
> >     Decimal128:         "r"
> 
> Will that "r" conflict with C99 restrict?
I think we considered this and C99 restrict cannot exist on its own. It 
must be a restrict on a type hence it is a qualifier. So the conflict 
should not exist, in my opinion. I hope we are not wrong. 
> This of course would be even harder to demangle.
Its a little more work, but not much more.

> 
> >we looked at the holes that remain in the one letter case and
> >chose this rather then multiple letters.
> Michael Wong
> 
> It may be time to use double letters.  Unfortunately "D" is taken, 
unless
> you want something like Dp Dq Dr.  Or using "B". :-)

It just so happens that those spaces exist in the current name mangling 
and we have started using it in our product. Anyone know if GNU is using 
the same mangling for decimal floating types?
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