36 lines
788 B
C++
36 lines
788 B
C++
// Copyright (c) 2006 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Number_types/include/CGAL/constant.h $
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// $Id: constant.h 52164b1 2019-10-19T15:34:59+02:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Sylvain Pion
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#ifndef CGAL_CONSTANT_H
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#define CGAL_CONSTANT_H
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#include <CGAL/config.h>
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#include <CGAL/tss.h>
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namespace CGAL {
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// The function constant<T, int i>() returns a const reference to T(i).
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// TODO : is it worth documenting ?
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template < typename T, int i >
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inline
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const T&
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constant()
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{
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CGAL_STATIC_THREAD_LOCAL_VARIABLE(T, t,i);
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return t;
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}
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} //namespace CGAL
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#endif // CGAL_CONSTANT_H
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