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// Copyright (c) 2006 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.1/Number_types/include/CGAL/constant.h $
// $Id: include/CGAL/constant.h 08b27d3db14 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Sylvain Pion
#ifndef CGAL_CONSTANT_H
#define CGAL_CONSTANT_H
#include <CGAL/config.h>
#include <CGAL/tss.h>
namespace CGAL {
// The function constant<T, int i>() returns a const reference to T(i).
// TODO : is it worth documenting ?
template < typename T, int i >
inline
const T&
constant()
{
CGAL_STATIC_THREAD_LOCAL_VARIABLE(T, t,i);
return t;
}
} //namespace CGAL
#endif // CGAL_CONSTANT_H
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