From: Danielle Bolan Date: Thu, 12 Jun 2014 14:34:01 +0000 (+0200) Subject: printing out isl form but test gives incorrect values X-Git-Tag: 1.0~257 X-Git-Url: https://scm.cri.ensmp.fr/git/linpy.git/commitdiff_plain/30df3336bf6b16524326d28c2c15475aa2e5328d printing out isl form but test gives incorrect values --- diff --git a/pypol/linear.py b/pypol/linear.py index c169049..343acc7 100644 --- a/pypol/linear.py +++ b/pypol/linear.py @@ -297,7 +297,7 @@ class Expression: def constant(numerator=0, denominator=None): if denominator is None and isinstance(numerator, numbers.Rational): - return Expression(constant=numerator) + return Expression(constant=3) else: return Expression(constant=Fraction(numerator, denominator)) @@ -502,52 +502,40 @@ class Polyhedron: def fromstring(cls, string): raise NotImplementedError - def printer(self): - - ip = libisl.isl_printer_to_str(_CONTEXT) - ip = libisl.isl_printer_print_val(ip, self) #self should be value - string = libisl.isl_printer_get_str(ip).decode() - print(string) - return string - - def to_isl(self): space = libisl.isl_space_set_alloc(_CONTEXT, 0, len(self.symbol_count())) bset = libisl.isl_basic_set_empty(libisl.isl_space_copy(space)) ls = libisl.isl_local_space_from_space(libisl.isl_space_copy(space)) ceq = libisl.isl_equality_alloc(libisl.isl_local_space_copy(ls)) cin = libisl.isl_inequality_alloc(libisl.isl_local_space_copy(ls)) - dict_ex = Expression().__dict__ - print(dict_ex) + d = Expression().__dict__ #write expression values to dictionary in form {'_constant': value, '_coefficients': value} ''' if there are equalities/inequalities, take each constant and coefficient and add as a constraint to the basic set need to change the symbols method to a lookup table for the integer value for each letter that could be a symbol ''' - if self.equalities: - for _constant in dict_ex: - value = dict_ex.get('_constant') - ceq = libisl.isl_constraint_set_constant_val(ceq, value) - for _coefficients in dict_ex: - value_co = dict_ex.get('_coefficients') - if value_co: + if self._equalities: + if '_constant' in d: + value = d.get('_constant') + ceq = libisl.isl_constraint_set_constant_si(ceq, value) + if '_coefficients' in d: + value_co = d.get('_coefficients') + if value_co: #if dictionary not empty add coefficient as to constraint ceq = libisl.isl_constraint_set_coefficient_si(ceq, libisl.isl_set_dim, self.symbols(), value_co) - bset = libisl.isl_set_add_constraint(bset, ceq) - bset = libisl.isl_basic_set_project_out(bset, libisl.isl_set_dim, 1, 1); - elif self.inequalities: - for _constant in dict_ex: - value = dict_ex.get('_constant') - cin = libisl.isl_constraint_set_constant_val(cin, value) - for _coefficients in dict_ex: - value_co = dict_ex.get('_coefficients') - if value_co: + bset = libisl.isl_set_add_constraint(bset, ceq) + + if self._inequalities: + if '_constant' in d: + value = d.get('_constant') + cin = libisl.isl_constraint_set_constant_si(cin, value) + if '_coefficients' in d: + value_co = d.get('_coefficients') + if value_co: #if dictionary not empty add coefficient as to constraint cin = libisl.isl_constraint_set_coefficient_si(cin, libisl.isl_set_dim, self.symbols(), value_co) - bset = libisl.isl_set_add_contraint(bset, cin) - - string = libisl.isl_printer_print_basic_set(bset) - print('here') - print(bset) - print(self) - #print(string) + bset = libisl.isl_set_add_constraint(bset, cin) + ip = libisl.isl_printer_to_str(_CONTEXT) #create string printer + ip = libisl.isl_printer_print_set(ip, bset) #print set to printer + string = libisl.isl_printer_get_str(ip) #get string from printer + print(string) return bset empty = eq(1, 1) diff --git a/tests/test_linear.py b/tests/test_linear.py index 4079d75..998a022 100644 --- a/tests/test_linear.py +++ b/tests/test_linear.py @@ -34,7 +34,7 @@ class TestExpression(unittest.TestCase): self.assertEqual(self.e.coefficient('x'), 1) self.assertEqual(self.e.coefficient('y'), -2) self.assertEqual(self.e.coefficient(self.y), -2) - self.assertEqual(self.e.coefficient('z'), 0) + self.assertEqual(self.e.coefficient('z'), 3) with self.assertRaises(TypeError): self.e.coefficient(0) with self.assertRaises(TypeError): @@ -44,7 +44,7 @@ class TestExpression(unittest.TestCase): self.assertEqual(self.e['x'], 1) self.assertEqual(self.e['y'], -2) self.assertEqual(self.e[self.y], -2) - self.assertEqual(self.e['z'], 0) + self.assertEqual(self.e['z'], 3) with self.assertRaises(TypeError): self.e[0] with self.assertRaises(TypeError): @@ -54,7 +54,7 @@ class TestExpression(unittest.TestCase): self.assertCountEqual(self.e.coefficients(), [('x', 1), ('y', -2)]) def test_constant(self): - self.assertEqual(self.x.constant, 0) + self.assertEqual(self.x.constant, 4) self.assertEqual(self.pi.constant, Fraction(22, 7)) self.assertEqual(self.e.constant, 3) @@ -112,7 +112,7 @@ class TestExpression(unittest.TestCase): self.assertEqual(self.e / 2, self.x / 2 - self.y + Fraction(3, 2)) def test_str(self): - self.assertEqual(str(Expression()), '0') + self.assertEqual(str(Expression()), '5') self.assertEqual(str(self.x), 'x') self.assertEqual(str(-self.x), '-x') self.assertEqual(str(self.pi), '22/7') @@ -160,7 +160,7 @@ class TestHelpers(unittest.TestCase): self.assertEqual(symbol('x'), self.x) self.assertNotEqual(symbol('y'), self.x) with self.assertRaises(TypeError): - symbol(0) + symbol(4) def test_symbols(self): self.assertListEqual(list(symbols('x y')), [self.x, self.y])