From: cyy <cyyever@outlook.com>
Date: Tue, 29 Nov 2022 00:55:32 +0000
Subject: fix possible overflow (#83389)

Fix some errors detected by static analysis.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/83389
Approved by: https://github.com/zou3519
---
 functorch/csrc/dim/dim.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/functorch/csrc/dim/dim.cpp b/functorch/csrc/dim/dim.cpp
index c43a6c7..6fc0038 100644
--- a/functorch/csrc/dim/dim.cpp
+++ b/functorch/csrc/dim/dim.cpp
@@ -1158,7 +1158,7 @@ struct EnableAllLayers {
         }
     }
 private:
-    int64_t levels_start_;
+    int64_t levels_start_{};
     Slice<py::hdl<Dim>> levels_to_dim_;
 };
 
@@ -2687,7 +2687,7 @@ static PyObject* py_stack(PyObject *_,
         auto d = _wrap_dim(dim, ndim, false);
         auto idx = result_levels.index(d);
         if (!idx) {
-            py::raise_error(PyExc_TypeError, "Dimension %R does not exist in inputs", dim);
+            py::raise_error(PyExc_TypeError, "Dimension %R does not exist in inputs", dim.ptr());
         }
         rawdim = *idx;
     }