Questions about a constant array reference in the C++ front end

Stefan Strasser sstrasser@systemhaus-gruppe.de
Sun May 8 20:27:00 GMT 2005


Nathan Sidwell schrieb:
> Stefan Strasser wrote:
> 
> 
>>I don't know anything about fold but in general a c++ array in the
>>frontend is cv-qualified, not its elements.
> 
> 
> this is untrue. the elements hold the qualification.

right

> 
> 
>>I have been processing large source codes including STL, boost and
>>custom code including function bodies and I have never seen a
>>RANGE_EXPR. I suppose it's only used at later stages or only in other
>>language's frontends.
> 
> 
> Incorrect.  RANGE_EXPRs get generated during processing of an array's
> initializer -- very early on in the C++ FE.
> 

as said there have not been one case in large sources.

> I can't recall exactly. It might be for default initialization.
> Something like
> 	ptr = new int[100] ();

...does not initialize anything

int ar[]={0,0,0,0}; does, but not with RANGE_EXPR


-- 
Stefan Strasser



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