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diff --git a/demos/spectrum/3rdparty/fftreal/Array.hpp b/demos/spectrum/3rdparty/fftreal/Array.hpp
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+/*****************************************************************************
+
+ Array.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 (Array_CURRENT_CODEHEADER)
+ #error Recursive inclusion of Array code header.
+#endif
+#define Array_CURRENT_CODEHEADER
+
+#if ! defined (Array_CODEHEADER_INCLUDED)
+#define Array_CODEHEADER_INCLUDED
+
+
+
+/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+#include <cassert>
+
+
+
+/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+template <class T, long LEN>
+Array <T, LEN>::Array ()
+{
+ // Nothing
+}
+
+
+
+template <class T, long LEN>
+const typename Array <T, LEN>::DataType & Array <T, LEN>::operator [] (long pos) const
+{
+ assert (pos >= 0);
+ assert (pos < LEN);
+
+ return (_data_arr [pos]);
+}
+
+
+
+template <class T, long LEN>
+typename Array <T, LEN>::DataType & Array <T, LEN>::operator [] (long pos)
+{
+ assert (pos >= 0);
+ assert (pos < LEN);
+
+ return (_data_arr [pos]);
+}
+
+
+
+template <class T, long LEN>
+long Array <T, LEN>::size ()
+{
+ return (LEN);
+}
+
+
+
+/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
+
+
+
+#endif // Array_CODEHEADER_INCLUDED
+
+#undef Array_CURRENT_CODEHEADER
+
+
+
+/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/