mirror of https://github.com/CGAL/cgal
82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
// Copyright (c) 2006-2009 Inria Lorraine (France). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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// Author: Luis Peñaranda <luis.penaranda@loria.fr>
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#ifndef CGAL_RS_BASIC_H
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#define CGAL_RS_BASIC_H
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#include <CGAL/basic.h>
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#include <CGAL/enum.h>
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#ifndef CGAL_RS_VERB
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#ifdef CGAL_RS_DEBUG
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#define CGAL_RS_VERB 2
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#else
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#define CGAL_RS_VERB 0
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#endif
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#endif
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// the default precision of RS to calculate a root (precision is 2^n)
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#ifndef CGAL_RS_DEF_PREC
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#define CGAL_RS_DEF_PREC 0
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#endif
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// the minimum, used when calculating a sign
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#ifndef CGAL_RS_MIN_PREC
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#define CGAL_RS_MIN_PREC 0
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#endif
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#if ( defined CGAL_HAS_THREADS && !defined CGAL_RS_NO_TLS )
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# ifdef _MSC_VER
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# ifdef _WINDLL
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# error "Can't build CGAL_RS as thread safe."
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# define RS_THREAD_ATTR
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# else
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# define RS_THREAD_ATTR __declspec(thread)
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# endif
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# else
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# define RS_THREAD_ATTR __thread
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# endif
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#else
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# define RS_THREAD_ATTR
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#endif
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namespace CGAL{
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enum rs_sign{
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RS_NEGATIVE= NEGATIVE,
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RS_ZERO= ZERO,
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RS_POSITIVE= POSITIVE,
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RS_UNKNOWN
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};
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// this function must only be called when s is not RS_UNKNOWN
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inline Sign convert_rs_sign(rs_sign s){
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CGAL_precondition(s!=RS_UNKNOWN);
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switch(s){
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case RS_NEGATIVE:return NEGATIVE;break;
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case RS_POSITIVE:return POSITIVE;break;
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default:return ZERO;
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}
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}
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} // namespace CGAL
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#endif // CGAL_RS_BASIC_H
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// vim: tabstop=8: softtabstop=8: smarttab: shiftwidth=8: expandtab
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