Added support for cumprod, cumsum, triu, tril functions

1 files changed, 38 insertions, 0 deletions

diff --git a/2.3-1/src/c/matrixOperations/cumsum/i8columncumsuma.c b/2.3-1/src/c/matrixOperations/cumsum/i8columncumsuma.c
new file mode 100644
index 00000000..27fdbded
--- /dev/null
+++ b/2.3-1/src/c/matrixOperations/cumsum/i8columncumsuma.c
@@ -0,0 +1,38 @@
+// 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
+
+//Function returns cumulative sum of members of array/matrix
+
+#include "cumsum.h"
+#include "types.h"
+
+void i8columncumsuma(int8 *in1, int row, int column, int8 *out)
+{
+	int row_cnt, col_cnt = 0;
+	
+	//Assign elements in first column as it is
+	for(row_cnt = 0; row_cnt < row; row_cnt++)
+	{
+		out[row_cnt] = in1[row_cnt];
+	}
+
+	//For second column onwards
+	for (row_cnt = 0; row_cnt < row; row_cnt++)
+	{
+		for ( col_cnt = 1; col_cnt < column; col_cnt++)
+		{
+			
+			out[col_cnt*row+row_cnt] = in1[col_cnt*row+row_cnt] \
+											+ out[(col_cnt-1)*row+row_cnt];
+		}
+	}
+	
+}
\ No newline at end of file