[Python-Dev] New PEP: Using ssize_t as the index type

Thu Dec 29 23:22:32 CET 2005

Martin v. Löwis wrote:
> Please let me know what you think.

+1. in honor of the Bike Shed Effect, I'm going to assume that you've
thought of everything.
:::
well, one thing seems to missing from your PEP: in several modules, you've
changed the cast used in the type table. e.g.

--- python/branches/ssize_t/Modules/_elementtree.c (original)
+++ python/branches/ssize_t/Modules/_elementtree.c Tue Dec 20 09:52:16 2005
@@ -1228,7 +1228,7 @@
 }
 static int
-element_setitem(ElementObject* self, size_t index, PyObject* item)
+element_setitem(ElementObject* self, Py_ssize_t index, PyObject* item)
 {
 int i;
 PyObject* old;
@@ -1373,7 +1373,7 @@
 0, /* sq_repeat */
 (ssizeargfunc) element_getitem,
 (ssizessizeargfunc) element_getslice,
- (sizeobjargproc) element_setitem,
+ (ssizeobjargproc) element_setitem,
 (ssizessizeobjargproc) element_setslice,
 };
is this change backwards compatible ?
</F>
