Implementation of function error().

src/Error.c

@@ -0,0 +1,23 @@
+#include "Error.h"
+
+int error(int errorCode)
+{
+	int returnValue=0;
+	switch(errorCode){
+	case -1:
+		puts("Login not successful.");
+		returnValue = -1;
+		break;
+	case -2:
+		puts("Maximum number of attempts reached.");
+		returnValue = -2;
+		break;
+	case -3:
+		puts("No menu entry available for this number.");
+		returnValue = -3;
+		break;
+	default:
+		puts("Error code unknown.");
+	}
+	return returnValue;
+}

src/Error.h

@@ -0,0 +1,2 @@
+#include <stdio.h>
+int error(int);