From cb9acd4073e6772c77465261db965cd02dd58244 Mon Sep 17 00:00:00 2001
From: Aaron Meurer <asmeurer@gmail.com>
Date: Tue, 24 Sep 2024 14:28:54 -0600
Subject: [PATCH] Add a comment

---
 array_api_compat/torch/_info.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/array_api_compat/torch/_info.py b/array_api_compat/torch/_info.py
index a85e684e..264caa9e 100644
--- a/array_api_compat/torch/_info.py
+++ b/array_api_compat/torch/_info.py
@@ -147,6 +147,10 @@ def default_dtypes(self, *, device=None):
          'indexing': torch.int64}
 
         """
+        # Note: if the default is set to float64, the devices like MPS that
+        # don't support float64 will error. We still return the default_dtype
+        # value here because this error doesn't represent a different default
+        # per-device.
         default_floating = torch.get_default_dtype()
         default_complex = torch.complex64 if default_floating == torch.float32 else torch.complex128
         default_integral = torch.int64