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Annotation of OpenXM_contrib/gmp/mpfr/tests/tround.c, Revision 1.1

1.1     ! maekawa     1: /* Test file for mpfr_round.
        !             2:
        !             3: Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
        !             4:
        !             5: This file is part of the MPFR Library.
        !             6:
        !             7: The MPFR Library is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU Library General Public License as published by
        !             9: the Free Software Foundation; either version 2 of the License, or (at your
        !            10: option) any later version.
        !            11:
        !            12: The MPFR 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 Library General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Library General Public License
        !            18: along with the MPFR 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 <stdio.h>
        !            23: #include <stdlib.h>
        !            24: #include "gmp.h"
        !            25: #include "mpfr.h"
        !            26:
        !            27: int
        !            28: main()
        !            29: {
        !            30:    mpfr_t x;
        !            31:
        !            32:    /* checks that rounds to nearest sets the last
        !            33:      bit to zero in case of equal distance */
        !            34:    mpfr_init2(x, 2);
        !            35:    mpfr_set_d(x, 5.0, 0);
        !            36:    if (mpfr_get_d(x) != 4.0) { printf("Error in tround: got %1.1f instead of 4.0\n",mpfr_get_d(x)); }
        !            37:
        !            38:    mpfr_set_d(x, 0.00098539467465030839, 0);
        !            39:
        !            40:    mpfr_set_d(x, 9.84891017624509146344e-01, GMP_RNDU);
        !            41:    if (mpfr_get_d(x) != 1.0) { printf("Error in tround: got %f instead of 1.0\n",mpfr_get_d(x)); exit(1); }
        !            42:
        !            43:    mpfr_clear(x);
        !            44:    exit (0);
        !            45: }