[ZooLib-checkins] SF.net SVN: zoolib:[2598] trunk/zoolib/source/cxx/zoolib/ZMatrix.h

[<ag...@us...>]

Revision: 2598
          http://zoolib.svn.sourceforge.net/zoolib/?rev=2598&view=rev
Author:   agreen
Date:     2011-10-30 02:55:40 +0000 (Sun, 30 Oct 2011)
Log Message:
-----------
Add operator-

Modified Paths:
--------------
    trunk/zoolib/source/cxx/zoolib/ZMatrix.h

Modified: trunk/zoolib/source/cxx/zoolib/ZMatrix.h
===================================================================
--- trunk/zoolib/source/cxx/zoolib/ZMatrix.h	2011-10-29 15:19:22 UTC (rev 2597)
+++ trunk/zoolib/source/cxx/zoolib/ZMatrix.h	2011-10-30 02:55:40 UTC (rev 2598)
@@ -559,6 +559,22 @@
 
 // =================================================================================================
 #pragma mark -
+#pragma mark * Negate
+
+template <class E, size_t R, size_t C>
+ZMatrix<E,R,C> operator-(const ZMatrix<E,R,C>& iMat)
+	{
+	ZMatrix<E,R,C> result(null);
+	for (size_t c = 0; c < C; ++c)
+		{
+		for (size_t r = 0; r < R; ++r)
+			result.fE[c][r] = -iMat.fE[c][r];
+		}
+	return result;
+	}
+
+// =================================================================================================
+#pragma mark -
 #pragma mark * Scalar multiplication
 
 template <class E, size_t R, size_t C, class T>

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