GDB syntax error when casting to base class

André Pönitz andre.poenitz@nokia.com
Thu Sep 9 14:00:00 GMT 2010


On Thursday 09 September 2010 14:50:07 ext Marc Khouzam wrote:
> Hi,
> 
> I got an eclipse bug report that led me to a bizarre behavior from GDB.
> In the very short session below, I'm getting a syntax error when casting
> a variable to its base class.
> If I remove the constructor (see comment in the code below)
> the problem goes away.  Or if I add the word 'struct', it also goes away.
> 
> This is causing problems in Eclipse because -var-info-path-expression
> returns the expression that causes a syntax error.
> 
> I tried to debug it but I ended up in c-exp.y and had to give up.
> 
> I was going to propose a patch that adds 'struct' to the 
> -var-info-path-expression output, but I didn't think that was the 
> greatest of solutions.  Currently, this is what we are planning to 
> do in Eclipse to work around this problem.
>
> I can open a PR if it makes sense?

Tom mentioned the 'struct' workaround in comment #4 to
http://sourceware.org/bugzilla/show_bug.cgi?id=11912, so
maybe the issue is related.

Andre'




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