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/* Test file for mpfr_cmp_d.
Copyright 1999, 2001-2004, 2006-2016 Free Software Foundation, Inc.
Contributed by the AriC and Caramba 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;
tests_start_mpfr ();
mpfr_init2 (x, IEEE_DBL_MANT_DIG);
mpfr_set_d (x, 2.34763465, MPFR_RNDN);
if (mpfr_cmp_d (x, 2.34763465) != 0)
{
printf ("Error in mpfr_cmp_d 2.34763465 and ");
mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
exit (1);
}
if (mpfr_cmp_d (x, 2.345) <= 0)
{
printf ("Error in mpfr_cmp_d 2.345 and ");
mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); putchar('\n');
exit (1);
}
if (mpfr_cmp_d (x, 2.4) >= 0)
{
printf ("Error in mpfr_cmp_d 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_d (x, 0.0))
{
printf ("Error in mpfr_cmp_d 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_d (x, 0.0) == 0)
{
printf ("Error in mpfr_cmp_d (Inf, 0)\n");
exit (1);
}
#if !defined(MPFR_ERRDIVZERO)
/* Check NAN */
{
int c;
mpfr_clear_erangeflag ();
c = mpfr_cmp_d (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_d (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;
}
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