From d53099d36986ca7207f507f11d8e9552340f210c Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Wed, 24 May 2017 17:22:30 +0200
Subject: api/variance: move to compat/

---
 api/variance.hpp          | 57 -----------------------------------------------
 compat/variance.hpp       | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 tracker-hatire/thread.hpp |  2 +-
 3 files changed, 58 insertions(+), 58 deletions(-)
 delete mode 100644 api/variance.hpp
 create mode 100644 compat/variance.hpp

diff --git a/api/variance.hpp b/api/variance.hpp
deleted file mode 100644
index 7a83154c..00000000
--- a/api/variance.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-#pragma once
-
-#include <cmath>
-#include <cinttypes>
-
-// no copyright information other than the attribution below.
-
-// code shared as an example/tutorial of running variance
-// written by John D. Cook on the website <http://www.johndcook.com/blog/standard_deviation>
-
-// following references in the site's article:
-
-// Chan, Tony F.; Golub, Gene H.; LeVeque, Randall J. (1983).
-// Algorithms for Computing the Sample Variance: Analysis and Recommendations.
-// The American Statistician 37, 242-247.
-
-// Ling, Robert F. (1974).
-// Comparison of Several Algorithms for Computing Sample Means and Variances.
-// Journal of the American Statistical Association, Vol. 69, No. 348, 859-866.
-
-class variance
-{
-    double m_old, m_new, s_old, s_new;
-    std::uintptr_t cnt;
-
-public:
-    using size_type = std::uintptr_t;
-
-    variance() : cnt(0) {}
-
-    void clear() { *this = variance(); }
-
-    size_type count() { return cnt; }
-
-    void input(double x)
-    {
-        cnt++;
-
-        if (cnt == 1)
-        {
-            m_old = m_new = x;
-            s_old = 0;
-        }
-        else
-        {
-            m_new = m_old + (x - m_old)/cnt;
-            s_new = s_old + (x - m_old)*(x - m_new);
-
-            m_old = m_new;
-            s_old = s_new;
-        }
-    }
-
-    double avg() const { return cnt > 0 ? m_new : 0; }
-    double Var() const { return cnt > 1 ? s_new/(cnt - 1) : 0; }
-    double stddev() const { return std::sqrt(Var()); }
-};
diff --git a/compat/variance.hpp b/compat/variance.hpp
new file mode 100644
index 00000000..7a83154c
--- /dev/null
+++ b/compat/variance.hpp
@@ -0,0 +1,57 @@
+#pragma once
+
+#include <cmath>
+#include <cinttypes>
+
+// no copyright information other than the attribution below.
+
+// code shared as an example/tutorial of running variance
+// written by John D. Cook on the website <http://www.johndcook.com/blog/standard_deviation>
+
+// following references in the site's article:
+
+// Chan, Tony F.; Golub, Gene H.; LeVeque, Randall J. (1983).
+// Algorithms for Computing the Sample Variance: Analysis and Recommendations.
+// The American Statistician 37, 242-247.
+
+// Ling, Robert F. (1974).
+// Comparison of Several Algorithms for Computing Sample Means and Variances.
+// Journal of the American Statistical Association, Vol. 69, No. 348, 859-866.
+
+class variance
+{
+    double m_old, m_new, s_old, s_new;
+    std::uintptr_t cnt;
+
+public:
+    using size_type = std::uintptr_t;
+
+    variance() : cnt(0) {}
+
+    void clear() { *this = variance(); }
+
+    size_type count() { return cnt; }
+
+    void input(double x)
+    {
+        cnt++;
+
+        if (cnt == 1)
+        {
+            m_old = m_new = x;
+            s_old = 0;
+        }
+        else
+        {
+            m_new = m_old + (x - m_old)/cnt;
+            s_new = s_old + (x - m_old)*(x - m_new);
+
+            m_old = m_new;
+            s_old = s_new;
+        }
+    }
+
+    double avg() const { return cnt > 0 ? m_new : 0; }
+    double Var() const { return cnt > 1 ? s_new/(cnt - 1) : 0; }
+    double stddev() const { return std::sqrt(Var()); }
+};
diff --git a/tracker-hatire/thread.hpp b/tracker-hatire/thread.hpp
index 38b5c5dd..962b902b 100644
--- a/tracker-hatire/thread.hpp
+++ b/tracker-hatire/thread.hpp
@@ -10,7 +10,7 @@
 #include <QFile>
 #include <QCoreApplication>
 
-#include "api/variance.hpp"
+#include "compat/variance.hpp"
 #include "compat/timer.hpp"
 
 enum results
-- 
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