Thank you Tom for the review. I have modified the test according to
the example you have pointed. The new patch is attached. The
changelogs are below.

Code Changelog:

2012-03-14 Siva Chandra <sivachandra@google.com>

        Python scripting: Add new method Value.referenced_value to
        gdb.Value which can dereference pointer as well as reference
        values.
        * NEWS: Add entry under 'Python scripting' about the new method
        Value.referenced_value on gdb.Value objects.
        * python/py-value.c (valpy_referenced_value): New function
        defining a new method on gdb.Value objects which can dereference
        pointer and reference values.
        * testsuite/gdb.python/py-value.cc: Add test case for
        testing the methodology exposing C++ values to Python.
        * testsuite/gdb.python/py-value-cc.exp: Add tests testing the
        methodology exposing C++ values to Python.
        * testsuite/gdb.python/Makefile.in: Add py-value-cc to
        EXECUTABLES.

Docs Changelog:

2012-03-14 Siva Chandra <sivachandra@google.com>

        * gdb.texinfo (Python API/Values From Inferior): Add description
        about the new method Value.referenced_value.  Add description on
        how Value.dereference is different (and similar) to
        Value.referenced_value.

OK to commit? If yes, I think someone should commit it for me.

Thanks,
Siva Chandra

On Wed, Mar 14, 2012 at 9:18 PM, Tom Tromey <tromey@redhat.com> wrote:
>>>>>> "Siva" == Siva Chandra <sivachandra@google.com> writes:
>
> Siva> I could not think of a better name than 'referenced_value' for this
> Siva> method.
>
> Seems reasonable to me.
>
> Siva> About using prepare_for_testing, I notice that compilation fails with
> Siva> this as gcc is being used to compile the test case and not g++. So, I
> Siva> have not changed the exp file in this patch.
>
> You can do it by passing the "c++" option, e.g. from dispcxx.exp:
>
> if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
>
> The code bits are ok with this fixed.
>
> Tom