+class Exception : Throwable
+{
+ this(string msg, Throwable next = null);
+ this(string msg, string file, size_t line, Throwable next = null);
+}
+
+
+class Error : Throwable
+{
+ this(string msg, Throwable next = null);
+ this(string msg, string file, size_t line, Throwable next = null);
+}