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Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)' 

to avoid compiler warnings.
This commit is contained in:
Matthias Klose 2009-04-05 21:19:13 +00:00
parent a5d58c831f
commit 91a3b9e4f0
3 changed files with 6 additions and 5 deletions
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4
Include/object.h
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@ -801,8 +801,8 @@ 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

3
Misc/NEWS
View File

@ -207,7 +207,8 @@ 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.
- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
to avoid compiler warnings.
Library
-------

4
Modules/readline.c
View File

@ -694,13 +694,13 @@ 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 && PyInt_AsLong(r) == -1 && PyErr_Occurred())) {
goto error;
}
Py_XDECREF(r), r=NULL;
Py_XDECREF(r); r=NULL;
if (0) {
error: