** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: procsignal.h,v 1.6 2000/11/28 14:54:07 kevin Exp $
+** $Id: procsignal.h,v 1.7 2000/12/02 01:29:11 kevin Exp $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
#include <rfftw.h>
#endif
+#include <complex>
+
class SignalFilter;
class SGP;