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| author | Jim Fulton <jim@zope.com> | 2004-07-14 19:07:35 (GMT) |
|---|---|---|
| committer | Jim Fulton <jim@zope.com> | 2004-07-14 19:07:35 (GMT) |
| commit | 8c5aeaa2770c958414c0785229a5e038ed97a234 (patch) | |
| tree | bc24fe9776943d84418c44a8c5ca0e2bb1e6c53c /Include/object.h | |
| parent | 7a0e8bc283590c1db93cbb313650a959d8cc1f31 (diff) | |
| download | cpython-8c5aeaa2770c958414c0785229a5e038ed97a234.zip cpython-8c5aeaa2770c958414c0785229a5e038ed97a234.tar.gz cpython-8c5aeaa2770c958414c0785229a5e038ed97a234.tar.bz2 | |
Implemented a new Py_CLEAR macro. This macro should be used when
decrementing the refcount of variables that might be accessed as a
result of calling Python
Diffstat (limited to 'Include/object.h')
| -rw-r--r-- | Include/object.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Include/object.h b/Include/object.h index 555d810..60cf146 100644 --- a/Include/object.h +++ b/Include/object.h @@ -620,6 +620,15 @@ PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force); else \ _Py_Dealloc((PyObject *)(op)) +#define Py_CLEAR(op) \ + do { \ + if (op) { \ + PyObject *tmp = (op); \ + (op) = NULL; \ + Py_DECREF(tmp); \ + } \ + } while (0) + /* Macros to use in case the object pointer may be NULL: */ #define Py_XINCREF(op) if ((op) == NULL) ; else Py_INCREF(op) #define Py_XDECREF(op) if ((op) == NULL) ; else Py_DECREF(op) |