[Python-checkins] cpython: Issue #13623: Fix a performance regression introduced by issue #12170 in
victor.stinner
python-checkins at python.org
Sun Dec 18 01:17:54 CET 2011
http://hg.python.org/cpython/rev/75648db1b3f3
changeset: 74022:75648db1b3f3
user: Victor Stinner <victor.stinner at haypocalc.com>
date: Sun Dec 18 01:17:41 2011 +0100
summary:
Issue #13623: Fix a performance regression introduced by issue #12170 in
bytes.find() and handle correctly OverflowError (raise the same ValueError than
the error for -1).
files:
Lib/test/test_bytes.py | 5 ++++
Objects/stringlib/find.h | 33 ++++++++++++++++-----------
2 files changed, 25 insertions(+), 13 deletions(-)
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -362,6 +362,11 @@
self.assertEqual(b.find(i, 1, 3), 1)
self.assertEqual(b.find(w, 1, 3), -1)
+ for index in (-1, 256, sys.maxsize + 1):
+ self.assertRaisesRegex(
+ ValueError, r'byte must be in range\(0, 256\)',
+ b.find, index)
+
def test_rfind(self):
b = self.type2test(b'mississippi')
i = 105
diff --git a/Objects/stringlib/find.h b/Objects/stringlib/find.h
--- a/Objects/stringlib/find.h
+++ b/Objects/stringlib/find.h
@@ -186,27 +186,34 @@
{
PyObject *tmp_subobj;
Py_ssize_t ival;
+ PyObject *err;
if(!STRINGLIB(parse_args_finds)(function_name, args, &tmp_subobj,
start, end))
return 0;
- ival = PyNumber_AsSsize_t(tmp_subobj, PyExc_ValueError);
- if (ival == -1 && PyErr_Occurred()) {
- PyErr_Clear();
+ if (!PyNumber_Check(tmp_subobj)) {
*subobj = tmp_subobj;
- }
- else {
- /* The first argument was an integer */
- if(ival < 0 || ival > 255) {
- PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
- return 0;
- }
-
- *subobj = NULL;
- *byte = (char)ival;
+ return 1;
}
+ ival = PyNumber_AsSsize_t(tmp_subobj, PyExc_OverflowError);
+ if (ival == -1) {
+ err = PyErr_Occurred();
+ if (err && !PyErr_GivenExceptionMatches(err, PyExc_OverflowError)) {
+ PyErr_Clear();
+ *subobj = tmp_subobj;
+ return 1;
+ }
+ }
+
+ if (ival < 0 || ival > 255) {
+ PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
+ return 0;
+ }
+
+ *subobj = NULL;
+ *byte = (char)ival;
return 1;
}
--
Repository URL: http://hg.python.org/cpython
More information about the Python-checkins
mailing list