On 3 August 2011 10:34, Heikki Linnakangas <heikki.linnakan...@enterprisedb.com> wrote: > The check is only tautological if the compiler implements enums as unsigned > integers. Whether enums are signed or not is implementation-dependent. > Perhaps cast status to unsigned or signed explicitly before the checks?
I don't believe that the standard allows for an implementation of enums as unsigned integers - after all, individual enum literals can be given corresponding negative integer values. This warning is only seen because the first enum literal in the enum is explicitly given the value 0, thus precluding the possibility of the value being < 0, barring some abuse of the enum. -- 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
