* src/tgba/succiterconcrete.hh

(tgba_succ_iterator_concrete::current_acc_): New attribute.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::next): Set current_acc_.
(tgba_succ_iterator_concrete::current_accepting_conditions):
Simply return it.

ChangeLog

 2003-07-07  Alexandre Duret-Lutz  <aduret@src.lip6.fr>
 
+	* src/tgba/succiterconcrete.hh 
+	(tgba_succ_iterator_concrete::current_acc_): New attribute.
+	* src/tgba/succiterconcrete.cc 
+	(tgba_succ_iterator_concrete::next): Set current_acc_.
+	(tgba_succ_iterator_concrete::current_accepting_conditions): 
+	Simply return it.
+
 	* configure.ac: Output iface/Makefile and iface/gspn/Makefile.
 	* iface/Makefile.am, iface/gspn/Makefile.am: New files.
 	* Makefile.am (SUBDIRS): Add iface.

src/tgba/succiterconcrete.cc

@@ -99,13 +99,17 @@ namespace spot
 	    // cube = (!ab & Acc[a])
 	    bdd prop = bdd_exist(cube, data_.acc_set);
 	    // prop = (!a)&b
-	    bdd acc = bdd_forall(bdd_restrict(as, prop), data_.var_set);
+	    current_acc_ = bdd_forall(bdd_restrict(as, prop), data_.var_set);
 	    // acc = (Acc[a] | Acc[b])
-	    bdd all = as & acc;
+	    bdd all = as & current_acc_;
 	    // all = (a | (!a)&b) & (Acc[a] | Acc[b])
 	    current_ = bdd_exist(all, data_.acc_set) & dest;
 	    // current_ = (a | (!a)&b) & (Next...)
 	  }
+	else
+	  {
+	    current_acc_ = bddfalse;
+	  }
 
 	assert(current_ != bddfalse);
 	// The destination state, computed here, should be compatible
@@ -142,10 +146,7 @@ namespace spot
   tgba_succ_iterator_concrete::current_accepting_conditions()
   {
     assert(!done());
-    return bdd_exist(bdd_forall(bdd_restrict(data_.accepting_conditions,
-					     current_),
-				data_.var_set),
-		     data_.notacc_set);
+    return current_acc_;
   }
 
 }

src/tgba/succiterconcrete.hh

@@ -42,6 +42,8 @@ namespace spot
 			///         atomic proposition and Next variables.
     bdd current_state_;	///< \brief Current successor, as a
 			///         conjunction of Now variables.
+    bdd current_acc_;   ///< \brief Accepting condition for the current
+                        ///         transition.
   };
 }