vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/* Test mpf_get_d and mpf_set_d.
|
|
|
|
Copyright 1996, 1999-2001, 2009 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library test suite.
|
|
|
|
The GNU MP Library test suite is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU 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 MP Library test suite 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 General
|
|
Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "gmp-impl.h"
|
|
#include "tests.h"
|
|
|
|
#if defined (__vax) || defined (__vax__)
|
|
#define LOW_BOUND 1e-38
|
|
#define HIGH_BOUND 8e37
|
|
#endif
|
|
|
|
#if defined (_CRAY) && ! defined (_CRAYIEEE)
|
|
/* The range varies mysteriously between Cray version. On an SV1,
|
|
the range seem to be 1e-600..1e603, but a cfp (non-ieee) T90
|
|
has a much smaller range of 1e-240..1e240. */
|
|
#define LOW_BOUND 1e-240
|
|
#define HIGH_BOUND 1e240
|
|
#endif
|
|
|
|
#if ! defined (LOW_BOUND)
|
|
#define LOW_BOUND 1e-300
|
|
#define HIGH_BOUND 1e300
|
|
#endif
|
|
|
|
void
|
|
test_denorms (int prc)
|
|
{
|
|
#ifdef _GMP_IEEE_FLOATS
|
|
double d1, d2;
|
|
mpf_t f;
|
|
int i;
|
|
|
|
mpf_set_default_prec (prc);
|
|
|
|
mpf_init (f);
|
|
|
|
d1 = 1.9;
|
|
for (i = 0; i < 820; i++)
|
|
{
|
|
mpf_set_d (f, d1);
|
|
d2 = mpf_get_d (f);
|
|
if (d1 != d2)
|
|
abort ();
|
|
d1 *= 0.4;
|
|
}
|
|
|
|
mpf_clear (f);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
double d, e, r;
|
|
mpf_t u, v;
|
|
|
|
tests_start ();
|
|
mpf_init (u);
|
|
mpf_init (v);
|
|
|
|
mpf_set_d (u, LOW_BOUND);
|
|
for (d = 2.0 * LOW_BOUND; d < HIGH_BOUND; d *= 1.01)
|
|
{
|
|
mpf_set_d (v, d);
|
|
if (mpf_cmp (u, v) >= 0)
|
|
abort ();
|
|
e = mpf_get_d (v);
|
|
r = e/d;
|
|
if (r < 0.99999999999999 || r > 1.00000000000001)
|
|
{
|
|
fprintf (stderr, "should be one ulp from 1: %.16f\n", r);
|
|
abort ();
|
|
}
|
|
mpf_set (u, v);
|
|
}
|
|
|
|
mpf_clear (u);
|
|
mpf_clear (v);
|
|
|
|
test_denorms (10);
|
|
test_denorms (32);
|
|
test_denorms (64);
|
|
test_denorms (100);
|
|
test_denorms (200);
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|