mirror of
https://review.haiku-os.org/buildtools
synced 2025-01-19 12:51:22 +01:00
974e12c1f0
Old version was 3.1.2 and is quite old: 2013-03-13 A lot has happened since then 4.0.1 is from 2018-02-07
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
/* Test file for mpfr_get_q.
|
|
|
|
Copyright 2017-2018 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"
|
|
|
|
#ifndef MPFR_USE_MINI_GMP
|
|
|
|
static void
|
|
special (void)
|
|
{
|
|
mpfr_t f;
|
|
mpq_t q;
|
|
|
|
mpfr_init2 (f, MPFR_PREC_MIN);
|
|
mpq_init (q);
|
|
|
|
/* check NaN */
|
|
mpfr_set_nan (f);
|
|
mpfr_clear_erangeflag ();
|
|
mpfr_get_q (q, f);
|
|
MPFR_ASSERTN(mpq_cmp_ui (q, 0, 1) == 0);
|
|
MPFR_ASSERTN(mpfr_erangeflag_p ());
|
|
|
|
/* check +Inf */
|
|
mpfr_set_inf (f, 1);
|
|
mpfr_clear_erangeflag ();
|
|
mpfr_get_q (q, f);
|
|
MPFR_ASSERTN(mpq_cmp_ui (q, 0, 1) == 0);
|
|
MPFR_ASSERTN(mpfr_erangeflag_p ());
|
|
|
|
/* check -Inf */
|
|
mpfr_set_inf (f, -1);
|
|
mpfr_clear_erangeflag ();
|
|
mpfr_get_q (q, f);
|
|
MPFR_ASSERTN(mpq_cmp_ui (q, 0, 1) == 0);
|
|
MPFR_ASSERTN(mpfr_erangeflag_p ());
|
|
|
|
/* check +0 */
|
|
mpfr_set_zero (f, 1);
|
|
mpfr_clear_erangeflag ();
|
|
mpfr_get_q (q, f);
|
|
MPFR_ASSERTN(mpq_cmp_ui (q, 0, 1) == 0);
|
|
MPFR_ASSERTN(!mpfr_erangeflag_p ());
|
|
|
|
/* check -0 */
|
|
mpfr_set_zero (f, -1);
|
|
mpfr_clear_erangeflag ();
|
|
mpfr_get_q (q, f);
|
|
MPFR_ASSERTN(mpq_cmp_ui (q, 0, 1) == 0);
|
|
MPFR_ASSERTN(!mpfr_erangeflag_p ());
|
|
|
|
mpq_clear (q);
|
|
mpfr_clear (f);
|
|
}
|
|
|
|
static void
|
|
random_tests (void)
|
|
{
|
|
mpfr_t f, g;
|
|
mpq_t q;
|
|
int inex;
|
|
mpfr_rnd_t rnd;
|
|
int i;
|
|
|
|
mpfr_init2 (f, MPFR_PREC_MIN + (randlimb() % 100));
|
|
mpfr_init2 (g, mpfr_get_prec (f));
|
|
mpq_init (q);
|
|
|
|
for (i = 0; i < 1000; i++)
|
|
{
|
|
mpfr_urandomb (f, RANDS);
|
|
mpfr_get_q (q, f);
|
|
rnd = RND_RAND ();
|
|
inex = mpfr_set_q (g, q, rnd);
|
|
MPFR_ASSERTN(inex == 0);
|
|
MPFR_ASSERTN(mpfr_cmp (f, g) == 0);
|
|
}
|
|
|
|
mpq_clear (q);
|
|
mpfr_clear (f);
|
|
mpfr_clear (g);
|
|
}
|
|
|
|
/* Check results are in canonical form.
|
|
See https://sympa.inria.fr/sympa/arc/mpfr/2017-12/msg00029.html */
|
|
static void
|
|
check_canonical (void)
|
|
{
|
|
mpfr_t x;
|
|
mpq_t q;
|
|
mpz_t z;
|
|
|
|
mpfr_init2 (x, 53);
|
|
mpfr_set_ui (x, 3, MPFR_RNDN);
|
|
mpq_init (q);
|
|
mpfr_get_q (q, x);
|
|
/* check the denominator is positive */
|
|
if (mpz_sgn (mpq_denref (q)) <= 0)
|
|
{
|
|
printf ("Error, the denominator of mpfr_get_q should be positive\n");
|
|
exit (1);
|
|
}
|
|
mpz_init (z);
|
|
mpz_gcd (z, mpq_numref (q), mpq_denref (q));
|
|
/* check the numerator and denominator are coprime */
|
|
if (mpz_cmp_ui (z, 1) != 0)
|
|
{
|
|
printf ("Error, numerator and denominator of mpfr_get_q should be coprime\n");
|
|
exit (1);
|
|
}
|
|
mpfr_clear (x);
|
|
mpq_clear (q);
|
|
mpz_clear (z);
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
tests_start_mpfr ();
|
|
|
|
special ();
|
|
random_tests ();
|
|
|
|
check_canonical ();
|
|
|
|
tests_end_mpfr ();
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
return 77;
|
|
}
|
|
|
|
#endif /* MPFR_USE_MINI_GMP */
|