From 4162811a18c5fa4ef0d8a37c6a373edbcc021ec2 Mon Sep 17 00:00:00 2001
From: mattjala <124107509+mattjala@users.noreply.github.com>
Date: Tue, 26 Mar 2024 14:31:51 -0500
Subject: [PATCH] Fix incorrect dset size for large dsets on Windows (#175)

---
 h5pyd/_hl/dataset.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/h5pyd/_hl/dataset.py b/h5pyd/_hl/dataset.py
index 97439bb..7f8038b 100644
--- a/h5pyd/_hl/dataset.py
+++ b/h5pyd/_hl/dataset.py
@@ -564,7 +564,7 @@ def size(self):
         """Numpy-style attribute giving the total dataset size"""
         if self._shape is None:
             return None
-        return numpy.prod(self._shape).item()
+        return numpy.prod(self._shape, dtype=numpy.int64).item()
 
     @property
     def nbytes(self):