mirror of https://github.com/CGAL/cgal
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Copyright (c) 2005
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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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//
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//
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// Author(s) : various
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// Tests if MPFR is available.
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#include <iostream>
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#include "gmp.h"
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#include "mpfr.h"
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int main()
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{
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mpfr_t b, p;
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mpfr_init (p);
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mpfr_init_set_str (b, "31", 10, GMP_RNDN);
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mpfr_mul_ui (p, b, 75, GMP_RNDU); /* generate product */
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char *str = new char[50]; // 50 should be enough
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mp_exp_t exp;
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str = mpfr_get_str(str, &exp, 10, 0, p, GMP_RNDU);
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std::cout << str << " E " << exp << std::endl;
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delete[] str;
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#ifdef MPFR_VERSION
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std::cout << "version=" << MPFR_VERSION_MAJOR << "."
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<< MPFR_VERSION_MINOR << "."
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<< MPFR_VERSION_PATCHLEVEL << std::endl;
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#else
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// MPFR versions < 2.2.0 did not have version strings
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std::cout << "version=unknown" << std::endl;
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#endif
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return 0;
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}
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