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Annotation of OpenXM_contrib/gmp/mpf/tests/t-get_d.c, Revision 1.1

1.1     ! maekawa     1: /* Test mpf_get_d and mpf_set_d.
        !             2:
        !             3:    Copyright (C) 1996, 1999, 2000 Free Software Foundation, Inc.
        !             4:
        !             5:    This file is part of the GNU MP Library.
        !             6:
        !             7:    The GNU MP Library is free software; you can redistribute it and/or modify
        !             8:    it under the terms of the GNU Lesser General Public License as published by
        !             9:    the Free Software Foundation; either version 2.1 of the License, or (at your
        !            10:    option) any later version.
        !            11:
        !            12:    The GNU MP Library is distributed in the hope that it will be useful, but
        !            13:    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            14:    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
        !            15:    License for more details.
        !            16:
        !            17:    You should have received a copy of the GNU Lesser General Public License
        !            18:    along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            19:    the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            20:    MA 02111-1307, USA. */
        !            21:
        !            22: #include "gmp.h"
        !            23:
        !            24: #ifdef __vax__
        !            25: #define LOW_BOUND 1e-38
        !            26: #define HIGH_BOUND 8e37
        !            27: #else
        !            28: #define LOW_BOUND 1e-300
        !            29: #define HIGH_BOUND 1e300
        !            30: #endif
        !            31:
        !            32: int
        !            33: #if __STDC__
        !            34: main (int argc, char **argv)
        !            35: #else
        !            36: main (argc, argv)
        !            37:      int  argc;
        !            38:      char **argv;
        !            39: #endif
        !            40: {
        !            41:   double d, e, r;
        !            42:   mpf_t u, v;
        !            43:
        !            44:   mpf_init (u);
        !            45:   mpf_init (v);
        !            46:
        !            47:   mpf_set_d (u, LOW_BOUND);
        !            48:   for (d = 2.0 * LOW_BOUND; d < HIGH_BOUND; d *= 1.01)
        !            49:     {
        !            50:       mpf_set_d (v, d);
        !            51:       if (mpf_cmp (u, v) >= 0)
        !            52:        abort ();
        !            53:       e = mpf_get_d (v);
        !            54:       r = e/d;
        !            55:       if (r < 0.99999999999999 | r > 1.00000000000001)
        !            56:        abort ();
        !            57:       mpf_set (u, v);
        !            58:     }
        !            59:
        !            60:   exit (0);
        !            61: }