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Annotation of OpenXM_contrib/gmp/mpfr/tests/tset.c, Revision 1.1.1.1

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: }