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File: [local] / OpenXM_contrib / gmp / mpfr / tests / Attic / tround.c (download)

Revision 1.1, Sat Sep 9 14:12:19 2000 UTC (23 years, 9 months ago) by maekawa
Branch: MAIN

Initial revision

/* Test file for mpfr_round.

Copyright (C) 1999 PolKA project, Inria Lorraine and Loria

This file is part of the MPFR Library.

The MPFR Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.

The MPFR Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
License for more details.

You should have received a copy of the GNU Library General Public License
along with the MPFR Library; see the file COPYING.LIB.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */

#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "mpfr.h"

int
main()
{
   mpfr_t x;

   /* checks that rounds to nearest sets the last
     bit to zero in case of equal distance */
   mpfr_init2(x, 2);
   mpfr_set_d(x, 5.0, 0);
   if (mpfr_get_d(x) != 4.0) { printf("Error in tround: got %1.1f instead of 4.0\n",mpfr_get_d(x)); }

   mpfr_set_d(x, 0.00098539467465030839, 0);

   mpfr_set_d(x, 9.84891017624509146344e-01, GMP_RNDU); 
   if (mpfr_get_d(x) != 1.0) { printf("Error in tround: got %f instead of 1.0\n",mpfr_get_d(x)); exit(1); }

   mpfr_clear(x);
   exit (0);
}