From 7cd72871fa675460d5d8e2f016a50a6aab78c6d5 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 9 Aug 2018 18:05:07 +0200
Subject: busywork

---
 compat/variance.hpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'compat/variance.hpp')

diff --git a/compat/variance.hpp b/compat/variance.hpp
index 7a83154c..237bb51a 100644
--- a/compat/variance.hpp
+++ b/compat/variance.hpp
@@ -18,16 +18,15 @@
 // Comparison of Several Algorithms for Computing Sample Means and Variances.
 // Journal of the American Statistical Association, Vol. 69, No. 348, 859-866.
 
-class variance
+class variance final
 {
     double m_old, m_new, s_old, s_new;
-    std::uintptr_t cnt;
+    std::uintptr_t cnt = 0;
 
 public:
     using size_type = std::uintptr_t;
 
-    variance() : cnt(0) {}
-
+    variance& operator=(variance const&) = default;
     void clear() { *this = variance(); }
 
     size_type count() { return cnt; }
-- 
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