87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
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// Copyright (c) 1999
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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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; either version 3 of the License,
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// or (at your option) any later version.
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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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// SPDX-License-Identifier: LGPL-3.0+
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//
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//
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// Author(s) : Stefan Schirra
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#ifndef CGAL_IEEE_754_UNIONS_H
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#define CGAL_IEEE_754_UNIONS_H
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#include <iomanip>
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#include <iostream>
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union IEEE_754_double
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{
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double a;
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#ifdef CGAL_BIG_ENDIAN
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struct { unsigned sign : 1;
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unsigned exp :11;
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unsigned high :20;
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unsigned low :32;
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} b;
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struct { unsigned H :32;
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unsigned L :32;
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} c;
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#else
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struct { unsigned low :32;
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unsigned sign : 1;
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unsigned exp :11;
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unsigned high :20;
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} b;
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struct { unsigned L :32;
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unsigned H :32;
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} c;
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#endif
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};
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union IEEE_754_float
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{
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float a;
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struct { unsigned sign : 1;
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unsigned exp : 8;
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unsigned high :23;
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} b;
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unsigned c;
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};
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inline
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void
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show( IEEE_754_double* p)
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{
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std::cout << std::endl;
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std::cout << std::hex << std::setw(8) << std::setfill('0') << p->c.H;
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std::cout << ' ';
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std::cout << std::hex << std::setw(8) << std::setfill('0') << p->c.L;
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std::cout << std::endl;
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}
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inline
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void
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show( IEEE_754_float* p)
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{
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std::cout << std::endl;
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std::cout << std::hex << std::setw(8) << std::setfill('0') << p->c;
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std::cout << std::endl;
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}
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#endif // CGAL_IEEE_754_UNIONS_H
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