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Make math.floor and math.ceil return ints instead of floats.

This commit is contained in:
Jeffrey Yasskin 2008-01-05 20:03:11 +00:00
parent d348b2587e
commit c2155835b4
2 changed files with 21 additions and 6 deletions
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2
Lib/test/test_math.py
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@ -51,6 +51,7 @@ class MathTests(unittest.TestCase):
def testCeil(self):
self.assertRaises(TypeError, math.ceil)
self.assertEquals(int, type(math.ceil(0.5)))
self.ftest('ceil(0.5)', math.ceil(0.5), 1)
self.ftest('ceil(1.0)', math.ceil(1.0), 1)
self.ftest('ceil(1.5)', math.ceil(1.5), 2)
@ -103,6 +104,7 @@ class MathTests(unittest.TestCase):
def testFloor(self):
self.assertRaises(TypeError, math.floor)
self.assertEquals(int, type(math.floor(0.5)))
self.ftest('floor(0.5)', math.floor(0.5), 0)
self.ftest('floor(1.0)', math.floor(1.0), 1)
self.ftest('floor(1.5)', math.floor(1.5), 1)

25
Modules/mathmodule.c
View File

@ -48,7 +48,8 @@ is_error(double x)
}
static PyObject *
math_1(PyObject *arg, double (*func) (double))
math_1_to_whatever(PyObject *arg, double (*func) (double),
PyObject *(*from_double_func) (double))
{
double x = PyFloat_AsDouble(arg);
if (x == -1.0 && PyErr_Occurred())
@ -61,7 +62,19 @@ math_1(PyObject *arg, double (*func) (double))
if (errno && is_error(x))
return NULL;
else
return PyFloat_FromDouble(x);
return (*from_double_func)(x);
}
static PyObject *
math_1(PyObject *arg, double (*func) (double))
{
return math_1_to_whatever(arg, func, PyFloat_FromDouble);
}
static PyObject *
math_1_to_int(PyObject *arg, double (*func) (double))
{
return math_1_to_whatever(arg, func, PyLong_FromDouble);
}
static PyObject *
@ -120,13 +133,13 @@ static PyObject * math_ceil(PyObject *self, PyObject *number) {
method = _PyType_Lookup(Py_TYPE(number), ceil_str);
if (method == NULL)
return math_1(number, ceil);
return math_1_to_int(number, ceil);
else
return PyObject_CallFunction(method, "O", number);
}
PyDoc_STRVAR(math_ceil_doc,
"ceil(x)\n\nReturn the ceiling of x as a float.\n"
"ceil(x)\n\nReturn the ceiling of x as an int.\n"
"This is the smallest integral value >= x.");
FUNC1(cos, cos,
@ -160,13 +173,13 @@ static PyObject * math_floor(PyObject *self, PyObject *number) {
method = _PyType_Lookup(Py_TYPE(number), floor_str);
if (method == NULL)
return math_1(number, floor);
return math_1_to_int(number, floor);
else
return PyObject_CallFunction(method, "O", number);
}
PyDoc_STRVAR(math_floor_doc,
"floor(x)\n\nReturn the floor of x as a float.\n"
"floor(x)\n\nReturn the floor of x as an int.\n"
"This is the largest integral value <= x.");
FUNC2(fmod, fmod,