1 files changed, 12 insertions, 0 deletions
diff --git a/fns.h b/fns.h
index 1a97b92..c897ddb 100644
--- a/fns.h
+++ b/fns.h
@@ -28,3 +28,15 @@ Builtin findbuiltin(Term *);
 
 /* flags.c */
 void initflags(void);
+Term *setflag(Rune *, Term *);
+
+/* error.c */
+Term *instantiationerror(void);
+Term *typeerror(Rune *, Term *);
+Term *domainerror(Rune *, Term *);
+Term *existenceerror(Rune *, Term *);
+Term *permissionerror(Rune *, Rune *, Term *);
+Term *representationerror(Rune *);
+Term *evaluationerror(Rune *);
+Term *resourceerror(Rune *);
+Term *syntaxerror(Rune *);