Put dtype definition in separate file.

dtype.h

@@ -0,0 +1,23 @@
+#ifndef _DTYPE_H_INCLUDED_
+#define _DTYPE_H_INCLUDED_
+
+
+/* Defining the datatype of the tensor */
+typedef float dtype;
+/* dtype needs to implement add, sub, mul and div, */
+#define DTYPE_ADD(a, b) ((a) + (b))
+#define DTYPE_SUB(a, b) ((a) - (b))
+#define DTYPE_MUL(a, b) ((a) * (b))
+#define DTYPE_DIV(a, b) ((a) / (b))
+/* equal and not equal,*/
+#define DTYPE_EQ(a, b) ((a) == (b))
+#define DTYPE_NE(a, b) ((a) != (b))
+/* one and zero, */
+#define DTYPE_ONE 1.0
+#define DTYPE_ZERO 0.0
+/* and a random and pruint8_t function */
+#define DTYPE_RAND(max) ((float) rand() / RAND_MAX * (max))
+#define DTYPE_PRINT(a) (printf(" %4.1f ", (a)))
+
+
+#endif // _DTYPE_H_INCLUDED_