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

1.1     ! ohara       1: /* Test file for mpfr_set.
        !             2:
        !             3: Copyright 2001 Free Software Foundation.
        !             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 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 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 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 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 <math.h>
        !            23: #include <stdio.h>
        !            24: #include <stdlib.h>
        !            25: #include "gmp.h"
        !            26: #include "mpfr.h"
        !            27: #include "mpfr-test.h"
        !            28:
        !            29: int
        !            30: main (void)
        !            31: {
        !            32:   mp_prec_t p, q;
        !            33:   mpfr_t x, y, z, u;
        !            34:   mp_rnd_t rnd;
        !            35:   int inexact, cmp;
        !            36:
        !            37:   /* check prototypes of mpfr_init_set_* */
        !            38:   inexact = mpfr_init_set_si (x, -1, GMP_RNDN);
        !            39:   inexact = mpfr_init_set (y, x, GMP_RNDN);
        !            40:   inexact = mpfr_init_set_ui (z, 1, GMP_RNDN);
        !            41:   inexact = mpfr_init_set_d (u, 1.0, GMP_RNDN);
        !            42:
        !            43:   mpfr_set_prec (y, 11);
        !            44:   mpfr_set_str_raw (y, "0.11111111100E-8");
        !            45:   mpfr_set_prec (x, 2);
        !            46:   mpfr_set (x, y, GMP_RNDN);
        !            47:   mpfr_set_str_raw (y, "1.0E-8");
        !            48:   if (mpfr_cmp (x, y))
        !            49:     {
        !            50:       fprintf (stderr, "Error for y=0.11111111100E-8, prec=2, rnd=GMP_RNDN\n");
        !            51:       exit (1);
        !            52:     }
        !            53:
        !            54:   for (p=2; p<500; p++)
        !            55:     {
        !            56:       mpfr_set_prec (x, p);
        !            57:       mpfr_random (x);
        !            58:       if (LONG_RAND () % 2)
        !            59:        mpfr_neg (x, x, GMP_RNDN);
        !            60:       for (q=2; q<2*p; q++)
        !            61:        {
        !            62:          mpfr_set_prec (y, q);
        !            63:          for (rnd=0; rnd<4; rnd++)
        !            64:            {
        !            65:              inexact = mpfr_set (y, x, rnd);
        !            66:              cmp = mpfr_cmp (y, x);
        !            67:              if (((inexact == 0) && (cmp != 0)) ||
        !            68:                  ((inexact > 0) && (cmp <= 0)) ||
        !            69:                  ((inexact < 0) && (cmp >= 0)))
        !            70:                {
        !            71:                  fprintf (stderr, "Wrong inexact flag in mpfr_set: expected %d, got %d\n", cmp, inexact);
        !            72:                  exit (1);
        !            73:                }
        !            74:            }
        !            75:        }
        !            76:     }
        !            77:
        !            78:   mpfr_clear (x);
        !            79:   mpfr_clear (y);
        !            80:   mpfr_clear (z);
        !            81:   mpfr_clear (u);
        !            82:   return 0;
        !            83: }