Thank you very much for your quick reply, Dr. Hipp, and I will fix my code. Probably I was trying to execute a statement before opening the database.
But the question remains: Should sqlite_exec() always generate an error message, or should I be prepared to handle the case in which it does not? (Which I've already done: not hard and cleaner code anyway.) RobR -----Original Message----- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Richard Hipp Sent: Tuesday, March 13, 2012 6:47 PM To: General Discussion of SQLite Database Subject: Re: [sqlite] No error message generated by sqlite_exec() On Tue, Mar 13, 2012 at 6:43 PM, Rob Richardson <rdrichard...@rad-con.com>wrote: > Hello! > > I am sending a badly formed query string to sqlite_exec(). It is > giving me error 21 (misuse of library), but it is not giving me an error > message. > The value of the pointer sent as the fifth argument of sqlite_exec() > is not changed. Is this expected behavior? Is there something I have > to do to tell sqlite that I want the error message to be generated? > If you are getting back SQLITE_MISUSE, that probably means you are calling sqlite3_exec() with a database connection that has previously been closed. SQLite tries to catch that situation and report the SQLITE_MISUSE error, but there are no guarantees that doing so will work. Depending on how malloc() is implemented on your system, it might segfault instead. So: Don't call sqlite3_exec() with a closed database connection. General rule: You should never do anything to SQLite that causes it to return SQLITE_MISUSE. If you do, there is an error in your code. Fix your code. > > Thank you very much. > > RobR > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
