RE: [Patch] -var-evaluate-expression NAME [FORMAT]

[Nick Roberts <nickrob at snap dot net dot nz>]

 > My patch no longer works with the patch Vladimir applied
 > http://sourceware.org/ml/gdb/2008-02/msg00006.html
 > The reason is that Vladimir's patch has c_value_of_variable()
 > always use the stored print_value which is formatted based on the
 > current display format (and not the one specified as an option
 > to -var-evaluate-expression.)  I think that is a good way to do it.
 > 
 > One solution is to revert c_value_of_variable:
 > -           return xstrdup (var->print_value);
 > +           return value_get_print_value (var->value, var->format);
 > 
 > Although this is very easy, personally, I don't like that too much.
 > 
 > Another option is to not only temporarily set var->format
 > but also var->print_value (by calling varobj_set_display_format).
 > I like this even less.
 > 
 > I think a solution based on 
 > http://sourceware.org/ml/gdb-patches/2008-01/msg00531.html
 > is probably the cleanest.  Can I have an educated opinion on
 > this decision?

This also uses value_get_print_value in c_value_of_variable.  I can't seem
to apply your earlier patch as I get spurious characters when I save it
(= -> =3D, \n -> =20\n, etc) but I wonder if we've made things too complicated.

What happens if you just use value_get_print_value (var->value, var->format)
directly in mi_cmd_var_evaluate_expression instead of varobj_get_value (var)?

-- 
Nick                                           http://www.inet.net.nz/~nickrob