Commit source

TVALCPU/src/utility.h

@@ -0,0 +1,45 @@
+/*
+ * utility.h
+ *
+ *  Created on: Mar 22, 2011
+ *      Author: ditlevsen
+ */
+
+#ifndef UTILITY_H_
+#define UTILITY_H_
+
+/**********************************************************************************/
+/* functions, etc. for handling different data types in mathematical expressions  */
+/**********************************************************************************/
+
+// overloaded versions of conj() and real() for scalar values...
+// (not needed when compiled with gcc and -std_c++0x)
+
+template <class Type>
+inline Type conj(Type f) {
+	return f;
+}
+
+template<class Type>
+inline Type real(Type f) {
+	return f;
+}
+
+template<class Type>
+inline Type imag(Type f) {
+	return 0;
+}
+
+
+// sign function
+
+template<class T_comp, class T_scal>
+inline T_comp sign(T_comp x) {
+	T_scal ax = std::abs(x);
+	if(ax > 0)
+		return x/ax;
+	else
+		return 0;
+}
+
+#endif /* UTILITY_H_ */