Raise ValueError when sampling an empty Domain

[linpy.git] / pypol / __init__.py

diff --git a/pypol/__init__.py b/pypol/__init__.py
index 89f80fc..e39bce7 100644 (file)
--- a/pypol/__init__.py
+++ b/pypol/__init__.py
@@ -2,13 +2,13 @@
 A polyhedral library based on ISL.
 """
 
 A polyhedral library based on ISL.
 """
 

-from .linexprs import Expression, Symbol, symbols, Rational
+from .linexprs import Expression, Symbol, Dummy, symbols, Rational

 from .polyhedra import Polyhedron, Eq, Ne, Le, Lt, Ge, Gt, Ne, Empty, Universe
 from .domains import Domain, And, Or, Not
 
 
 __all__ = [
 from .polyhedra import Polyhedron, Eq, Ne, Le, Lt, Ge, Gt, Ne, Empty, Universe
 from .domains import Domain, And, Or, Not
 
 
 __all__ = [

-    'Expression', 'Symbol', 'symbols', 'Rational',
+    'Expression', 'Symbol', 'Dummy', 'symbols', 'Rational',

     'Polyhedron', 'Eq', 'Ne', 'Le', 'Lt', 'Ge', 'Gt', 'Empty', 'Universe',
     'Domain', 'And', 'Or', 'Not',
 ]
     'Polyhedron', 'Eq', 'Ne', 'Le', 'Lt', 'Ge', 'Gt', 'Empty', 'Universe',
     'Domain', 'And', 'Or', 'Not',
 ]