fix predicate search

2017-06-06 12:47:59 +01:00
parent 2ad3420fac
commit f1ddb5822e
12 changed files with 95 additions and 121 deletions
--- a/CXX/yapi.cpp
+++ b/CXX/yapi.cpp
@@ -487,10 +487,9 @@ bool YAPEngine::mgoal(Term t, Term tmod)
    if (ap == nullptr || ap->OpcodeOfPred == UNDEF_OPCODE)
    {
      ap = rewriteUndefEngineQuery(ap, t, tmod);
-    }
-    if (ap==nullptr)
-
-      return false;
+      if (ap == nullptr || ap->OpcodeOfPred == UNDEF_OPCODE)
+	return false;
+    } else
      {
 	/* legal ap */
     arity_t arity = ap->ArityOfPE;