A question from a newbie

Rijk-Jan van Haaften rjchaaft@cs.uu.nl
Mon, 14 Jan 2002 19:20:51 +0100

Chen-Chieh Feng wrote:
>   Program error: {instDirectPositions_v1683_v1697 dir_pt}
>   Could anybody give me a direction on how to read this error message and
>the possible cause of this error? Thank you very much.

Check wheter all pattern matches are complete, i.e. all constructors
are matched. If you forget one, hugs says things like this.

Another possibility is that you used records. Can you please
tell a bit more about the program (source code)?