[eclipse-users] Newbie: not consecutive procedure clauses

From: Philippe de Rochambeau <phiroc_at_...22...>
Date: Sun, 7 Jan 2007 00:25:43 +0100
Hello,

whenever I compile the following code from the book "Learn Prolog Now!",

wizard(ron).
hasWand(harry).
wizard(X):- hasBroom(X), hasWand(X).
quidditchPlayer(harry).
hasBroom(X) :- quidditchPlayer(X).

I get the following message,

*** procedure clauses are not consecutive: wizard / 1
         before line 6 in the file /Applications/eclipse/myscripts/ 
harry.pl
harry.pl   compiled traceable 116 bytes in 0.00 seconds

Yes (0.00s cpu)

Could someone please explain why my procedure clauses should be  
"consecutive"?

Many thanks.

Best regards,

Philippe
Received on Sat Jan 06 2007 - 23:25:49 CET

This archive was generated by hypermail 2.2.0 : Mon Jul 09 2018 - 02:05:29 CEST