It occurred to me that you may be a little surprised that the patch actually prevents the warning from occurring. If you have any doubts, I can assure you that it does. Clang differentiates between 0 as an rvalue, 0 from an enum literal and 0 resulting from evaluating a macro expression (including a function-like macro with deep nesting).
-- Peter Geoghegan http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training and Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
