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diff --git a/tests/manual/spectrum/3rdparty/fftreal/OscSinCos.h b/tests/manual/spectrum/3rdparty/fftreal/OscSinCos.h
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+/*****************************************************************************
+
+ OscSinCos.h
+ 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_HEADER_INCLUDED)
+#define OscSinCos_HEADER_INCLUDED
+
+#if defined (_MSC_VER)
+ #pragma once
+ #pragma warning (4 : 4250) // "Inherits via dominance."
+#endif
+
+
+
+/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+#include "def.h"
+
+
+
+template <class T>
+class OscSinCos
+{
+
+/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+public:
+
+ typedef T DataType;
+
+ OscSinCos ();
+
+ FORCEINLINE void
+ set_step (double angle_rad);
+
+ FORCEINLINE DataType
+ get_cos () const;
+ FORCEINLINE DataType
+ get_sin () const;
+ FORCEINLINE void
+ step ();
+ FORCEINLINE void
+ clear_buffers ();
+
+
+
+/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+protected:
+
+
+
+/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+private:
+
+ DataType _pos_cos; // Current phase expressed with sin and cos. [-1 ; 1]
+ DataType _pos_sin; // -
+ DataType _step_cos; // Phase increment per step, [-1 ; 1]
+ DataType _step_sin; // -
+
+
+
+/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+private:
+
+ OscSinCos (const OscSinCos &other);
+ OscSinCos & operator = (const OscSinCos &other);
+ bool operator == (const OscSinCos &other);
+ bool operator != (const OscSinCos &other);
+
+}; // class OscSinCos
+
+
+
+#include "OscSinCos.hpp"
+
+
+
+#endif // OscSinCos_HEADER_INCLUDED
+
+
+
+/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/