From: Thomas Heller <theller@ctypes.org>
Date: Wed, 12 Apr 2006 19:07:36 +0000 (+0000)
Subject: Fix for a bug found by Armin Rigo, plus test.
X-Git-Tag: v2.5a2~297
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=55d031ef23ac8f6e7cfe823f62c9e4f627e7b431;p=python

Fix for a bug found by Armin Rigo, plus test.
https://sourceforge.net/tracker/?func=detail&atid=532154&aid=1467852&group_id=71702
---

diff --git a/Lib/ctypes/test/test_pointers.py b/Lib/ctypes/test/test_pointers.py
index 6172abb1f6..3a324a67c3 100644
--- a/Lib/ctypes/test/test_pointers.py
+++ b/Lib/ctypes/test/test_pointers.py
@@ -166,6 +166,18 @@ class PointersTestCase(unittest.TestCase):
         result = func( byref(argc), argv )
         assert result == 'world', result
 
+    def test_bug_1467852(self):
+        # http://sourceforge.net/tracker/?func=detail&atid=532154&aid=1467852&group_id=71702
+        x = c_int(5)
+        dummy = []
+        for i in range(32000):
+            dummy.append(c_int(i))
+        y = c_int(6)
+        p = pointer(x)
+        pp = pointer(p)
+        q = pointer(y)
+        pp[0] = q         # <==
+        self.failUnlessEqual(p[0], 6)
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index bcb179ee82..d751841095 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -548,7 +548,7 @@ PointerType_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 		return NULL;
 	stgdict->size = sizeof(void *);
 	stgdict->align = getentry("P")->pffi_type->alignment;
-	stgdict->length = 2;
+	stgdict->length = 1;
 	stgdict->ffi_type = ffi_type_pointer;
 
 	proto = PyDict_GetItemString(typedict, "_type_"); /* Borrowed ref */