Add helper function islhelper.isl_vertices_vertices()

[linpy.git] / pypol / domains.py

diff --git a/pypol/domains.py b/pypol/domains.py
index a2650e4..3034764 100644 (file)
--- a/pypol/domains.py
+++ b/pypol/domains.py
@@ -171,6 +171,8 @@ class Domain:
         from .polyhedra import Polyhedron
         islset = self._toislset(self.polyhedra, self.symbols)
         islbset = libisl.isl_set_sample(islset)
+        # next instruction should NOT be required
+        islbset = libisl.isl_basic_set_finalize(islbset)
         return Polyhedron._fromislbasicset(islbset, self.symbols)
 
     def intersection(self, *others):
@@ -221,13 +223,13 @@ class Domain:
         islset = self._toislset(self.polyhedra, self.symbols)
         islset = libisl.isl_set_lexmax(islset)
         return self._fromislset(islset, self.symbols)
-    
+
     def num_parameters(self):
         #could be useful with large, complicated polyhedrons
         islbset = self._toislbasicset(self.equalities, self.inequalities, self.symbols)
         num = libisl.isl_basic_set_dim(islbset, libisl.isl_dim_set)
         return num
-    
+
     def involves_dims(self, dims):
         #could be useful with large, complicated polyhedrons
         islset = self._toislset(self.polyhedra, self.symbols)
@@ -238,11 +240,11 @@ class Domain:
             for dim in dims:
                 if dim in symbols:
                     first = symbols.index(dims[0])
-                    n +=1  
+                    n +=1
                 else:
                     first = 0
-        else: 
-            return False            
+        else:
+            return False
         value = bool(libisl.isl_set_involves_dims(islset, libisl.isl_dim_set, first, n))
         libisl.isl_set_free(islset)
         return value