From b02a27fa4bc6712b761b26420d2f7f86d7c86578 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Fri, 19 Dec 2014 18:56:57 +0100
Subject: mat: add addition and subtraction operators

---
 opentrack/simple-mat.hpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'opentrack/simple-mat.hpp')

diff --git a/opentrack/simple-mat.hpp b/opentrack/simple-mat.hpp
index f1391f3c..158cb30d 100644
--- a/opentrack/simple-mat.hpp
+++ b/opentrack/simple-mat.hpp
@@ -5,6 +5,24 @@ template<typename num, int h, int w>
 struct Mat
 {
     num data[h][w];
+    
+    Mat<num, h, w> operator+(const Mat<num, h, w>& other) const
+    {
+        Mat<num, h, w> ret;
+        for (int j = 0; j < h; j++)
+            for (int i = 0; i < w; i++)
+                ret(j, i) = this->operator ()(j, i) + other(j, i);
+        return ret;
+    }
+    
+    Mat<num, h, w> operator-(const Mat<num, h, w>& other) const
+    {
+        Mat<num, h, w> ret;
+        for (int j = 0; j < h; j++)
+            for (int i = 0; i < w; i++)
+                ret(j, i) = this->operator ()(j, i) - other(j, i);
+        return ret;
+    }
 
     template<int p>
     Mat<num, w, p> operator*(const Mat<num, w, p>& other) const
-- 
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