[C++ Patch/RFC] Final part of c++/26099, __is_convertible_to

[Andrew Pinski]

On 6/23/07, Paolo Carlini <pcarlini@suse.de> wrote:
> Andrew Pinski wrote:
>
> > Can you not add a new global state variable?
>
> I'm open to suggestions...

Well for one, you should not be changing the generic diagnostic
functions at all, it just makes the code harder to understand what is
really going on.  I in some cases put a break point in error and
warning, so now I will get an extra stop in the debugger which is
wrong as we are not producing an error.

You should add a new variable to perform_implicit_conversion that says
we don't need diagnostic, and then change all the places where it
would do an error/warning, not to do the warning and if it was an
error, just return error_mark_node and check expr.  Right now your
change look very very wrong as you have the generic diagnostic
function says when an error occured when that is not exactly what you
want.
Also again it is hard to review your patch as you don't have -p turned
on for the diff, information on how to turn this on by default is
referenced on the wiki in the tips and hints for svn section.

Thanks,
Andrew Pinski