From 534743ee9886943e6ec388ba6403e3991c605c87 Mon Sep 17 00:00:00 2001
From: Hans Dembinski <hans.dembinski@gmail.com>
Date: Tue, 27 Apr 2021 14:04:53 +0200
Subject: [PATCH] better

---
 include/boost/histogram/accumulators/mean.hpp | 2 +-
 include/boost/histogram/unsafe_access.hpp     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/boost/histogram/accumulators/mean.hpp b/include/boost/histogram/accumulators/mean.hpp
index 1cfbe451..0bf321ef 100644
--- a/include/boost/histogram/accumulators/mean.hpp
+++ b/include/boost/histogram/accumulators/mean.hpp
@@ -154,7 +154,7 @@ class mean {
 private:
   impl_type data_{0, 0, 0};
 
-  friend struct unsafe_access;
+  friend struct ::boost::histogram::unsafe_access;
 };
 
 } // namespace accumulators
diff --git a/include/boost/histogram/unsafe_access.hpp b/include/boost/histogram/unsafe_access.hpp
index 303a8011..430b643f 100644
--- a/include/boost/histogram/unsafe_access.hpp
+++ b/include/boost/histogram/unsafe_access.hpp
@@ -117,7 +117,7 @@ struct unsafe_access {
   */
   template <class T>
   static constexpr auto& accumulators_mean_impl(T& m) {
-    return reinterpret_cast<typename T::impl_type&>(m);
+    return m.data_;
   }
 };