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To: gdb@sources.redhat.com
From:  Vladimir Prus <ghost@cs.msu.su>
Subject:  Re: Multiple breakpoint locations
Date: Wed, 14 Nov 2007 21:34:00 -0000
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Jim Blandy wrote:

> 
> Andreas Schwab <schwab at suse.de> writes:
>> It is valid for function template instantiations to only differ in the
>> return type.  See <http://gcc.gnu.org/ml/gcc-bugs/2003-06/msg02798.html>
>> for an example.
> 
> Following that link, I think I now better appreciate why full C++
> support in GDB is basically impossible: in order to decide which 'fun'
> template the call in 'main' refers to, one must try to instantiate
> each template and type-check the resulting code.  So GDB would need to
> essentially incorporate a full C++ front end.

Or have GCC export a library that GDB can use -- which seems right
approach.

Generally, overload resolution in C++ involves instantiating templates
and evaluating constant expressions and yes, that requires knowing lots of things.

- Volodya