C++ name mangling for local entities

[Geoffrey Keating]

On 19/10/2006, at 3:04 PM, Ian Lance Taylor wrote:

> gkeating@apple.com (Geoffrey Keating) writes:
>
>> For GCC, I've found it necessary to have a way to name local (that  
>> is,
>> namespace-scope 'static') variables and functions which allows more
>> than one such symbol to be present and have distinct mangled names.
>
> Out of curiousity: why start the name with "_Z" at all?  If you don't
> start it with "_Z", then you don't have to worry about the standard
> name mangling.

That's true; but then I have to decide what to start it with ('_Y'  
would not be a good choice, nor would '_A', and I'm hesitant to try  
'_L'), explain to the demanglers that they should demangle some things  
that don't start with 'Z', and explain to the manglers that they can't  
decide on the prefix until they've created a mangled version of the  
entire rest of the name so that they know whether they needed to use a  
local-source-name.
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