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

[Sean Perry <perry@xxxxxxxxxx>]

Yes, the native type and the standard class are different types.

--
Sean Perry
Compiler Development
IBM Canada Lab
(905)-413-6031 (tie 969-6031), fax (905)-413-4839



                                                                           
             Dennis Handly                                                 
             <dhandly@xxxxxxxx                                             
             om>                                                        To 
                                       Sean Perry/Toronto/IBM@IBMCA        
             08/17/2007 12:27                                           cc 
             AM                        cxx-abi-dev@xxxxxxxxxxxxxxxx,       
                                       Michael Wong/Toronto/IBM@IBMCA,     
                                       premanand.rao@xxxxxx                
                                                                   Subject 
                                       Re:  Fw: [cxx-abi-dev] Decimal      
                                       Floating Point mangling was(Fw:     
                                       [cxx-abi-dev] C++0x: Mangling of    
                                       rvalue reference type)s             
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




>From: Sean Perry <perry@xxxxxxxxxx>
>I think we need both mangling.  We need the native type for the C
>compatibility reasons Michael mentioned.

Having both just causes conflicts.
Unless there is a different source for each??

You mention below, C for complex.  Would the difference be:
  std::complex<float>
  float complex  (possibly in an extern "C" block?)

And something similar for Decimal FP??

>The native type will be independent from the C++ class type.

Would we really want that?  I thought you can only do that if they
are exactly the same??

>We should define a mangling for the C++ class types too.  This is similar
>to the complex types.  The ABI has Cx for the C type and mangled forms
>beginning with St for the std::complex<> classes.
Sean Perry

Did anyone ever implement the C prefix type?
This would indicate that Df Dd De would make sense.

Or you could have special Sf, Sd, Se abbreviations for the Decimal FP
template class types.