bpo-9566: Fix size_t=>int downcast warnings (#5230)

* Use wider types (int => Py_ssize_t) to avoid integer overflows.
* Fix gc.get_freeze_count(): use Py_ssize_t type rather than int, since gc_list_size() returns a Py_ssize_t.

1 files changed, 3 insertions, 3 deletions

diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index 121eb46..ea3c294 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -1449,14 +1449,14 @@ gc_unfreeze_impl(PyObject *module)
 }
 
 /*[clinic input]
-gc.get_freeze_count -> int
+gc.get_freeze_count -> Py_ssize_t
 
 Return the number of objects in the permanent generation.
 [clinic start generated code]*/
 
-static int
+static Py_ssize_t
 gc_get_freeze_count_impl(PyObject *module)
-/*[clinic end generated code: output=e4e2ebcc77e5cbf3 input=4b759db880a3c6e4]*/
+/*[clinic end generated code: output=61cbd9f43aa032e1 input=45ffbc65cfe2a6ed]*/
 {
     return gc_list_size(&_PyRuntime.gc.permanent_generation.head);
 }