diff options
| -rw-r--r-- | Lib/ctypes/test/test_numbers.py | 10 | ||||
| -rw-r--r-- | Misc/NEWS | 4 | ||||
| -rw-r--r-- | Modules/_ctypes/cfield.c | 30 |
3 files changed, 19 insertions, 25 deletions
diff --git a/Lib/ctypes/test/test_numbers.py b/Lib/ctypes/test/test_numbers.py index 244dbaf..8753a07 100644 --- a/Lib/ctypes/test/test_numbers.py +++ b/Lib/ctypes/test/test_numbers.py @@ -217,6 +217,16 @@ class NumberTestCase(unittest.TestCase): # probably be changed: self.assertRaises(TypeError, c_int, c_long(42)) + def test_float_overflow(self): + import sys + big_int = int(sys.float_info.max) * 2 + for t in float_types + [c_longdouble]: + self.assertRaises(OverflowError, t, big_int) + if (hasattr(t, "__ctype_be__")): + self.assertRaises(OverflowError, t.__ctype_be__, big_int) + if (hasattr(t, "__ctype_le__")): + self.assertRaises(OverflowError, t.__ctype_le__, big_int) + ## def test_perf(self): ## check_perf() @@ -714,6 +714,10 @@ Documentation Extension Modules ----------------- +- Issue #9041: An issue in ctypes.c_longdouble, ctypes.c_double, and + ctypes.c_float that caused an incorrect exception to be returned in the + case of overflow has been fixed. + - Issue #14212: The re module didn't retain a reference to buffers it was scanning, resulting in segfaults. diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c index 1c4eba9..14bc981 100644 --- a/Modules/_ctypes/cfield.c +++ b/Modules/_ctypes/cfield.c @@ -999,12 +999,8 @@ g_set(void *ptr, PyObject *value, Py_ssize_t size) long double x; x = PyFloat_AsDouble(value); - if (x == -1 && PyErr_Occurred()) { - PyErr_Format(PyExc_TypeError, - " float expected instead of %s instance", - value->ob_type->tp_name); + if (x == -1 && PyErr_Occurred()) return NULL; - } memcpy(ptr, &x, sizeof(long double)); _RET(value); } @@ -1023,12 +1019,8 @@ d_set(void *ptr, PyObject *value, Py_ssize_t size) double x; x = PyFloat_AsDouble(value); - if (x == -1 && PyErr_Occurred()) { - PyErr_Format(PyExc_TypeError, - " float expected instead of %s instance", - value->ob_type->tp_name); + if (x == -1 && PyErr_Occurred()) return NULL; - } memcpy(ptr, &x, sizeof(double)); _RET(value); } @@ -1047,12 +1039,8 @@ d_set_sw(void *ptr, PyObject *value, Py_ssize_t size) double x; x = PyFloat_AsDouble(value); - if (x == -1 && PyErr_Occurred()) { - PyErr_Format(PyExc_TypeError, - " float expected instead of %s instance", - value->ob_type->tp_name); + if (x == -1 && PyErr_Occurred()) return NULL; - } #ifdef WORDS_BIGENDIAN if (_PyFloat_Pack8(x, (unsigned char *)ptr, 1)) return NULL; @@ -1079,12 +1067,8 @@ f_set(void *ptr, PyObject *value, Py_ssize_t size) float x; x = (float)PyFloat_AsDouble(value); - if (x == -1 && PyErr_Occurred()) { - PyErr_Format(PyExc_TypeError, - " float expected instead of %s instance", - value->ob_type->tp_name); + if (x == -1 && PyErr_Occurred()) return NULL; - } memcpy(ptr, &x, sizeof(x)); _RET(value); } @@ -1103,12 +1087,8 @@ f_set_sw(void *ptr, PyObject *value, Py_ssize_t size) float x; x = (float)PyFloat_AsDouble(value); - if (x == -1 && PyErr_Occurred()) { - PyErr_Format(PyExc_TypeError, - " float expected instead of %s instance", - value->ob_type->tp_name); + if (x == -1 && PyErr_Occurred()) return NULL; - } #ifdef WORDS_BIGENDIAN if (_PyFloat_Pack4(x, (unsigned char *)ptr, 1)) return NULL; |