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.
140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/* Test file for mpfr_reldiff.
|
|
|
|
Copyright 2000-2025 Free Software Foundation, Inc.
|
|
Contributed by the Pascaline 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 <https://www.gnu.org/licenses/>. */
|
|
|
|
#include "mpfr-test.h"
|
|
|
|
#define SPECIAL_MAX 12
|
|
|
|
/* copied from reuse.c */
|
|
static void
|
|
set_special (mpfr_ptr x, unsigned int select)
|
|
{
|
|
MPFR_ASSERTN (select < SPECIAL_MAX);
|
|
switch (select)
|
|
{
|
|
case 0:
|
|
MPFR_SET_NAN (x);
|
|
break;
|
|
case 1:
|
|
MPFR_SET_INF (x);
|
|
MPFR_SET_POS (x);
|
|
break;
|
|
case 2:
|
|
MPFR_SET_INF (x);
|
|
MPFR_SET_NEG (x);
|
|
break;
|
|
case 3:
|
|
MPFR_SET_ZERO (x);
|
|
MPFR_SET_POS (x);
|
|
break;
|
|
case 4:
|
|
MPFR_SET_ZERO (x);
|
|
MPFR_SET_NEG (x);
|
|
break;
|
|
case 5:
|
|
mpfr_set_str_binary (x, "1");
|
|
break;
|
|
case 6:
|
|
mpfr_set_str_binary (x, "-1");
|
|
break;
|
|
case 7:
|
|
mpfr_set_str_binary (x, "1e-1");
|
|
break;
|
|
case 8:
|
|
mpfr_set_str_binary (x, "1e+1");
|
|
break;
|
|
case 9:
|
|
mpfr_const_pi (x, MPFR_RNDN);
|
|
break;
|
|
case 10:
|
|
mpfr_const_pi (x, MPFR_RNDN);
|
|
MPFR_SET_EXP (x, MPFR_GET_EXP (x)-1);
|
|
break;
|
|
case 11:
|
|
mpfr_urandomb (x, RANDS);
|
|
if (RAND_BOOL ())
|
|
mpfr_neg (x, x, MPFR_RNDN);
|
|
break;
|
|
default:
|
|
MPFR_ASSERTN (0);
|
|
}
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
mpfr_t a1, a2, b, c;
|
|
int pa, pb, pc, i, j, r;
|
|
int prec[] = { MPFR_PREC_MIN, 3, 16, 32, 53 };
|
|
|
|
tests_start_mpfr ();
|
|
|
|
/* Just check that mpfr_reldiff(a,b,c,rnd) computes |b-c|/b using the
|
|
precision of a, without any optimization. */
|
|
|
|
for (pa = 0; pa < numberof(prec); pa++)
|
|
{
|
|
mpfr_inits2 (prec[pa], a1, a2, (mpfr_ptr) 0);
|
|
for (pb = 0; pb < numberof(prec); pb++)
|
|
{
|
|
mpfr_init2 (b, prec[pb]);
|
|
for (pc = 0; pc < numberof(prec); pc++)
|
|
{
|
|
mpfr_init2 (c, prec[pc]);
|
|
for (i = 0; i < SPECIAL_MAX; i++)
|
|
{
|
|
set_special (b, i);
|
|
for (j = 0; j < SPECIAL_MAX; j++)
|
|
{
|
|
set_special (c, j);
|
|
RND_LOOP (r)
|
|
{
|
|
mpfr_rnd_t rnd = (mpfr_rnd_t) r;
|
|
|
|
mpfr_sub (a1, b, c, rnd);
|
|
mpfr_abs (a1, a1, rnd);
|
|
mpfr_div (a1, a1, b, rnd);
|
|
mpfr_reldiff (a2, b, c, rnd);
|
|
if (! SAME_VAL (a1, a2))
|
|
{
|
|
printf ("Error for pa=%d pb=%d pc=%d "
|
|
"i=%d j=%d rnd=%s\n", pa, pb, pc,
|
|
i, j, mpfr_print_rnd_mode (rnd));
|
|
printf ("expected ");
|
|
mpfr_dump (a1);
|
|
printf ("got ");
|
|
mpfr_dump (a2);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
mpfr_clear (c);
|
|
}
|
|
mpfr_clear (b);
|
|
}
|
|
mpfr_clears (a1, a2, (mpfr_ptr) 0);
|
|
}
|
|
|
|
tests_end_mpfr ();
|
|
return 0;
|
|
}
|