1 files changed, 34 insertions, 0 deletions
diff --git a/src/c/statisticsFunctions/sum/u8columnsuma.c b/src/c/statisticsFunctions/sum/u8columnsuma.c
new file mode 100644
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+++ b/src/c/statisticsFunctions/sum/u8columnsuma.c
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+/* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Siddhesh Wani
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+*/
+
+
+#include "sum.h"
+
+void u8columnsuma(uint8 *in, int lines, int columns, uint8 * out) {
+  int i = 0;
+
+  /*
+  ** First assign first row, just in case
+  ** out contains non-zero's elements.
+  */
+  for (i = 0 ; i < lines; ++i)
+    {
+      out[i] = (uint8)in[i];
+    }
+  /*
+  ** Then accumulate in each row.
+  */
+  for (i = lines ; i < lines * columns ; ++i)
+    {
+      out[i % lines] = (uint8)u8adds(out[i % lines] , in[i]);
+    }
+}