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Annotation of OpenXM_contrib/gmp/mpfr/tests/tcan_round.c, Revision 1.1.1.2

1.1       maekawa     1: /* Test file for mpfr_can_round.
                      2:
1.1.1.2 ! ohara       3: Copyright 1999, 2001 Free Software Foundation, Inc.
1.1       maekawa     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
1.1.1.2 ! ohara       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
1.1       maekawa    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
1.1.1.2 ! ohara      14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
1.1       maekawa    15: License for more details.
                     16:
1.1.1.2 ! ohara      17: You should have received a copy of the GNU Lesser General Public License
1.1       maekawa    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:
1.1.1.2 ! ohara      27: int
        !            28: main (void)
1.1       maekawa    29: {
                     30:    mpfr_t x;
                     31:
                     32:    /* checks that rounds to nearest sets the last
                     33:      bit to zero in case of equal distance */
1.1.1.2 ! ohara      34:    mpfr_init2 (x, 59);
        !            35:    mpfr_set_str_raw (x, "-0.10010001010111000011110010111010111110000000111101100111111E663");
        !            36:    if (mpfr_can_round (x, 54, GMP_RNDZ, GMP_RNDZ, 53) != 0)
        !            37:      {
        !            38:        fprintf (stderr, "Error (1) in mpfr_can_round\n");
        !            39:        exit (1);
        !            40:      }
        !            41:
        !            42:    mpfr_set_str_raw (x, "-Inf");
        !            43:    if (mpfr_can_round (x, 2000, GMP_RNDZ, GMP_RNDZ, 2000) != 0)
        !            44:      {
        !            45:        fprintf (stderr, "Error (2) in mpfr_can_round\n");
        !            46:        exit (1);
        !            47:      }
        !            48:
        !            49:    mpfr_set_prec (x, 64);
        !            50:    mpfr_set_str_raw (x, "0.1011001000011110000110000110001111101011000010001110011000000000");
        !            51:    if (mpfr_can_round (x, 65, GMP_RNDN, GMP_RNDN, 54))
        !            52:      {
        !            53:        fprintf (stderr, "Error (3) in mpfr_can_round\n");
        !            54:        exit (1);
        !            55:      }
        !            56:
        !            57:    mpfr_clear (x);
        !            58:
        !            59:    return 0;
1.1       maekawa    60: }