mirror of https://github.com/CGAL/cgal
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
// Copyright (c) 1999 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). 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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//
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// Author(s) : Stefan Schirra
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#ifndef CGAL_ENUM_H
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#define CGAL_ENUM_H
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#include <CGAL/basic.h>
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// If you add/change one type here, please update Is_a_predicate.h as well.
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CGAL_BEGIN_NAMESPACE
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enum Sign
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{
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NEGATIVE = -1,
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ZERO,
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POSITIVE
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};
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typedef Sign Orientation;
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const Orientation LEFT_TURN = POSITIVE;
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const Orientation RIGHT_TURN = NEGATIVE;
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const Orientation CLOCKWISE = NEGATIVE;
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const Orientation COUNTERCLOCKWISE = POSITIVE;
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const Orientation COLLINEAR = ZERO;
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const Orientation COPLANAR = ZERO;
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const Orientation DEGENERATE = ZERO;
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enum Oriented_side
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{
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ON_NEGATIVE_SIDE = -1,
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ON_ORIENTED_BOUNDARY,
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ON_POSITIVE_SIDE
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};
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enum Bounded_side
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{
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ON_UNBOUNDED_SIDE = -1,
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ON_BOUNDARY,
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ON_BOUNDED_SIDE
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};
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enum Comparison_result
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{
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SMALLER = -1,
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EQUAL,
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LARGER
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};
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enum Angle
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{
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OBTUSE = -1,
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RIGHT,
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ACUTE
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};
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CGAL_END_NAMESPACE
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#include <CGAL/functions_on_enums.h>
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#endif // CGAL_ENUM_H
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