8 files changed, 196 insertions, 0 deletions
diff --git a/2.3-1/src/c/elementaryFunctions/includes/log2.h b/2.3-1/src/c/elementaryFunctions/includes/log2.h
new file mode 100644
index 00000000..e7b2affb
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/includes/log2.h
@@ -0,0 +1,39 @@
+ /* Copyright (C) 2017 - 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: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+
+#ifndef __LOG2_H__
+#define __LOG2_H__
+
+#include "dynlib_elementaryfunctions.h"
+#include "floatComplex.h"
+#include "doubleComplex.h"
+#include "types.h"
+#include "log.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+double dlog2s(double inp);
+float slog2s(float inp);
+doubleComplex zlog2s(doubleComplex inp);
+void dlog2a(double* inp,int size, double* out);
+void slog2a(float* inp,int size, float* out);
+void zlog2a(doubleComplex* inp,int size, doubleComplex* out);
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+
+#endif /* !__LOG2_H__ */
+
diff --git a/2.3-1/src/c/elementaryFunctions/interfaces/int_log2.h b/2.3-1/src/c/elementaryFunctions/interfaces/int_log2.h
new file mode 100644
index 00000000..370503cd
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/interfaces/int_log2.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 2017 - 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: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_LOG2_H__
+#define __INT_LOG2_H__
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+
+
+#define d0log2d0(in1)  				dlog2s(in1)
+#define d2log2d2(in1, size1, out)  		dlog2a(in1,size1[0]*size1[1], out)
+#define s0log2s0(in1)  				slog2s(in1, in2)
+#define s2log2s2(in1, size1, out)  		slog2a(in1,size1[0]*size1[1], out)
+#define z0log2z0(in1)  				zlog2s(in1, in2)
+#define z2log2z2(in1, size1, out)  		zlog2a(in1,size1[0]*size1[1], out)
+
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*__INT_LOG2_H__*/
diff --git a/2.3-1/src/c/elementaryFunctions/log2/dlog2a.c b/2.3-1/src/c/elementaryFunctions/log2/dlog2a.c
new file mode 100644
index 00000000..79047dec
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/dlog2a.c
@@ -0,0 +1,20 @@
+/* Copyright (C) 2017 - 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
+ Organization: FOSSEE, IIT Bombay
+ Author: Brijesh Gupta C R
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "log2.h"
+
+void dlog2a(double* inp,int size, double* out)
+{
+    for(int i = 0; i<size; i++)
+	out[i] = dlog2s(inp[i]);
+}
diff --git a/2.3-1/src/c/elementaryFunctions/log2/dlog2s.c b/2.3-1/src/c/elementaryFunctions/log2/dlog2s.c
new file mode 100644
index 00000000..9d2f8ab2
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/dlog2s.c
@@ -0,0 +1,21 @@
+/* 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: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "log2.h"
+
+double dlog2s(double inp)
+{
+    return log(inp)/log(2);
+}
+
+
diff --git a/2.3-1/src/c/elementaryFunctions/log2/slog2a.c b/2.3-1/src/c/elementaryFunctions/log2/slog2a.c
new file mode 100644
index 00000000..04723072
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/slog2a.c
@@ -0,0 +1,21 @@
+/* Copyright (C) 2017 - 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
+ Organization: FOSSEE, IIT Bombay
+ Author: Brijesh Gupta C R
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "factorial.h"
+#include "log2.h"
+
+void slog2a(float* inp,int size, float* out)
+{
+    for(int i = 0; i<size; i++)
+	out[i] = slog2s(inp[i]);
+}
diff --git a/2.3-1/src/c/elementaryFunctions/log2/slog2s.c b/2.3-1/src/c/elementaryFunctions/log2/slog2s.c
new file mode 100644
index 00000000..d162248a
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/slog2s.c
@@ -0,0 +1,20 @@
+/* Copyright (C) 2017 - 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
+ Organization: FOSSEE, IIT Bombay
+ Author: Brijesh Gupta C R
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "factorial.h"
+#include "log2.h"
+
+float slog2s(float inp)
+{
+    return log(inp)/log(2);
+}
diff --git a/2.3-1/src/c/elementaryFunctions/log2/zlog2a.c b/2.3-1/src/c/elementaryFunctions/log2/zlog2a.c
new file mode 100644
index 00000000..4cd0b33f
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/zlog2a.c
@@ -0,0 +1,20 @@
+/* Copyright (C) 2017 - 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
+ Organization: FOSSEE, IIT Bombay
+ Author: Brijesh Gupta C R
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "log2.h"
+
+void zlog2a(doubleComplex* inp,int size, doubleComplex* out)
+{
+    for(int i = 0; i<size; i++)
+	out[i] = zlog2s(inp[i]);
+}
diff --git a/2.3-1/src/c/elementaryFunctions/log2/zlog2s.c b/2.3-1/src/c/elementaryFunctions/log2/zlog2s.c
new file mode 100644
index 00000000..8447c9e3
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/log2/zlog2s.c
@@ -0,0 +1,22 @@
+/* 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: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+*/
+#include <stdio.h>
+#include <math.h>
+#include "log2.h"
+#include "log.h"
+
+doubleComplex zlog2s(doubleComplex inp)
+{
+    return zlogs(inp)/zlogs(2);
+}
+
+