On Mon, Nov 11, 2013 at 10:50 AM, Andres Freund <and...@2ndquadrant.com> wrote: > Hi, > > I'd like to add support for the length modifier %z. Linux' manpages > describes it as: > z A following integer conversion corresponds to a size_t or ssize_t > argument. > > Since gcc's printf format checks understand it, we can add support for > it similar to the way we added %m support.
I seem to recall that our %m support involves rewriting the error string twice, which I think is actually kind of expensive if, for example, you've got a loop around a PL/pgsql EXCEPTION block. I'd actually like to find a way to get rid of the existing %m support, maybe by having a flag that says "oh, and by the way append the system error to my format string"; or by changing %m to %s and having the caller pass system_error_string() or similar for that format position. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
