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Merged revisions 71229,71271 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r71229 | matthias.klose | 2009-04-05 14:43:08 +0200 (So, 05 Apr 2009) | 3 lines

  - Py_DECREF: Add `do { ... } while (0)' to avoid compiler warnings.
    (avoiding brown paper typo this time)
........
  r71271 | matthias.klose | 2009-04-05 23:19:13 +0200 (So, 05 Apr 2009) | 3 lines

  Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
  to avoid compiler warnings.
........
This commit is contained in:
Matthias Klose 2009-04-07 13:24:27 +00:00
parent a3d29e8661
commit 091c7b16ff
3 changed files with 14 additions and 11 deletions
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8
Include/object.h
View File

@ -651,11 +651,13 @@ PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force);
((PyObject*)(op))->ob_refcnt++)
#define Py_DECREF(op) \
do { \
if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \
--((PyObject*)(op))->ob_refcnt != 0) \
_Py_CHECK_REFCNT(op) \
else \
_Py_Dealloc((PyObject *)(op))
_Py_Dealloc((PyObject *)(op)); \
} while (0)
/* Safely decref `op` and set `op` to NULL, especially useful in tp_clear
* and tp_dealloc implementatons.
@ -701,8 +703,8 @@ PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force);
} 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)
#define Py_XINCREF(op) do { if ((op) == NULL) ; else Py_INCREF(op); } while (0)
#define Py_XDECREF(op) do { if ((op) == NULL) ; else Py_DECREF(op); } while (0)
/*
These are provided as conveniences to Python runtime embedders, so that

5
Misc/NEWS
View File

@ -12,6 +12,9 @@ What's New in Python 3.1 beta 1?
Core and Builtins
-----------------
- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
to avoid compiler warnings.
Library
-------
@ -78,8 +81,6 @@ Core and Builtins
- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
short file names.
- Py_DECREF: Add `do { ... } while (0)' to avoid compiler warnings.
Library
-------

4
Modules/readline.c
View File

@ -693,13 +693,13 @@ on_completion_display_matches_hook(char **matches,
r = PyObject_CallFunction(completion_display_matches_hook,
"sOi", matches[0], m, max_length);
Py_DECREF(m), m=NULL;
Py_DECREF(m); m=NULL;
if (r == NULL ||
(r != Py_None && PyLong_AsLong(r) == -1 && PyErr_Occurred())) {
goto error;
}
Py_XDECREF(r), r=NULL;
Py_XDECREF(r); r=NULL;
if (0) {
error: