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diff --git a/examples/spectrum/3rdparty/fftreal/OscSinCos.hpp b/examples/spectrum/3rdparty/fftreal/OscSinCos.hpp
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+/*****************************************************************************
+
+ OscSinCos.hpp
+ Copyright (c) 2005 Laurent de Soras
+
+--- Legal stuff ---
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+*Tab=3***********************************************************************/
+
+
+
+#if defined (OscSinCos_CURRENT_CODEHEADER)
+ #error Recursive inclusion of OscSinCos code header.
+#endif
+#define OscSinCos_CURRENT_CODEHEADER
+
+#if ! defined (OscSinCos_CODEHEADER_INCLUDED)
+#define OscSinCos_CODEHEADER_INCLUDED
+
+
+
+/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+#include <cmath>
+
+namespace std { }
+
+
+
+/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+template <class T>
+OscSinCos <T>::OscSinCos ()
+: _pos_cos (1)
+, _pos_sin (0)
+, _step_cos (1)
+, _step_sin (0)
+{
+ // Nothing
+}
+
+
+
+template <class T>
+void OscSinCos <T>::set_step (double angle_rad)
+{
+ using namespace std;
+
+ _step_cos = static_cast <DataType> (cos (angle_rad));
+ _step_sin = static_cast <DataType> (sin (angle_rad));
+}
+
+
+
+template <class T>
+typename OscSinCos <T>::DataType OscSinCos <T>::get_cos () const
+{
+ return (_pos_cos);
+}
+
+
+
+template <class T>
+typename OscSinCos <T>::DataType OscSinCos <T>::get_sin () const
+{
+ return (_pos_sin);
+}
+
+
+
+template <class T>
+void OscSinCos <T>::step ()
+{
+ const DataType old_cos = _pos_cos;
+ const DataType old_sin = _pos_sin;
+
+ _pos_cos = old_cos * _step_cos - old_sin * _step_sin;
+ _pos_sin = old_cos * _step_sin + old_sin * _step_cos;
+}
+
+
+
+template <class T>
+void OscSinCos <T>::clear_buffers ()
+{
+ _pos_cos = static_cast <DataType> (1);
+ _pos_sin = static_cast <DataType> (0);
+}
+
+
+
+/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+#endif // OscSinCos_CODEHEADER_INCLUDED
+
+#undef OscSinCos_CURRENT_CODEHEADER
+
+
+
+/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/