/* Test file for mpfr_cmp_ld.

Copyright 2004, 2006-2014 Free Software Foundation, Inc.
Contributed by the AriC and Caramel projects, INRIA.

This file is part of the GNU MPFR Library.

The GNU MPFR Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.

The GNU 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 Lesser General Public
License for more details.

You should have received a copy of the GNU Lesser General Public License
along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */

#include "mpfr-test.h"

int
main (void)
{
  mpfr_t x;
  int c;

  tests_start_mpfr ();

  mpfr_init2(x, MPFR_LDBL_MANT_DIG);

  mpfr_set_ld (x, 2.34763465L, MPFR_RNDN);
  if (mpfr_cmp_ld(x, 2.34763465L)!=0) {
    printf("Error in mpfr_cmp_ld 2.34763465 and ");
    mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
    exit(1);
  }
  if (mpfr_cmp_ld(x, 2.345L)<=0) {
    printf("Error in mpfr_cmp_ld 2.345 and ");
    mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
    exit(1);
  }
  if (mpfr_cmp_ld(x, 2.4L)>=0) {
    printf("Error in mpfr_cmp_ld 2.4 and ");
    mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
    exit(1);
  }

  mpfr_set_ui (x, 0, MPFR_RNDZ);
  mpfr_neg (x, x, MPFR_RNDZ);
  if (mpfr_cmp_ld (x, 0.0)) {
    printf("Error in mpfr_cmp_ld 0.0 and ");
    mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
    exit(1);
  }

  mpfr_set_ui (x, 0, MPFR_RNDN);
  mpfr_ui_div (x, 1, x, MPFR_RNDU);
  if (mpfr_cmp_ld (x, 0.0) == 0)
    {
      printf ("Error in mpfr_cmp_ld (Inf, 0)\n");
      exit (1);
    }

#if !defined(MPFR_ERRDIVZERO)
  /* Check NAN */
  mpfr_clear_erangeflag ();
  c = mpfr_cmp_ld (x, DBL_NAN);
  if (c != 0 || !mpfr_erangeflag_p ())
    {
      printf ("ERROR for NAN (1)\n");
#ifdef MPFR_NANISNAN
      printf ("The reason is that NAN == NAN. Please look at the configure "
              "output\nand Section \"In case of problem\" of the INSTALL "
              "file.\n");
#endif
      exit (1);
    }
  mpfr_set_nan (x);
  mpfr_clear_erangeflag ();
  c = mpfr_cmp_ld (x, 2.0);
  if (c != 0 || !mpfr_erangeflag_p ())
    {
      printf ("ERROR for NAN (2)\n");
#ifdef MPFR_NANISNAN
      printf ("The reason is that NAN == NAN. Please look at the configure "
              "output\nand Section \"In case of problem\" of the INSTALL "
              "file.\n");
#endif
      exit (1);
    }
#endif  /* MPFR_ERRDIVZERO */

  mpfr_clear(x);

  tests_end_mpfr ();
  return 0;
}