vasilito
ff4ff35918
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.
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* Test file for mpfr_set_z.
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Copyright 1999, 2001-2025 Free Software Foundation, Inc.
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Contributed by the Pascaline and Caramba projects, INRIA.
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This file is part of the GNU MPFR Library.
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The GNU MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MPFR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MPFR Library; see the file COPYING.LESSER.
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If not, see <https://www.gnu.org/licenses/>. */
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#include "mpfr-test.h"
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static void check0(void)
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{
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mpz_t y;
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mpfr_t x;
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int inexact, r;
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/* Check for +0 */
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mpfr_init (x);
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mpz_init (y);
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mpz_set_si (y, 0);
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RND_LOOP (r)
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{
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inexact = mpfr_set_z (x, y, (mpfr_rnd_t) r);
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if (!MPFR_IS_ZERO(x) || !MPFR_IS_POS(x) || inexact)
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{
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printf("mpfr_set_z(x,0) failed for %s\n",
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mpfr_print_rnd_mode ((mpfr_rnd_t) r));
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exit(1);
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}
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}
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mpfr_clear(x);
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mpz_clear(y);
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}
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/* FIXME: It'd be better to examine the actual data in an mpfr_t to see that
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it's as expected. Comparing mpfr_set_z with mpfr_cmp or against
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mpfr_get_si is a rather indirect test of a low level routine. */
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static void
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check (long i, mpfr_rnd_t rnd)
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{
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mpfr_t f;
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mpz_t z;
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mpfr_init2 (f, 8 * sizeof(long));
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mpz_init (z);
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mpz_set_ui (z, i);
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mpfr_set_z (f, z, rnd);
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if (mpfr_get_si (f, MPFR_RNDZ) != i)
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{
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printf ("Error in mpfr_set_z for i=%ld rnd_mode=%d\n", i, rnd);
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exit (1);
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}
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mpfr_clear (f);
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mpz_clear (z);
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}
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static void
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check_large (void)
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{
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mpz_t z;
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mpfr_t x, y;
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mpfr_exp_t emax, emin;
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mpz_init (z);
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mpfr_init2 (x, 160);
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mpfr_init2 (y, 160);
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mpz_set_str (z, "77031627725494291259359895954016675357279104942148788042", 10);
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mpfr_set_z (x, z, MPFR_RNDN);
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mpfr_set_str_binary (y, "0.1100100100001111110110101010001000100001011010001100001000110100110001001100011001100010100010111000000011011100000111001101000100101001000000100100111000001001E186");
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if (mpfr_cmp (x, y))
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{
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printf ("Error in mpfr_set_z on large input\n");
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exit (1);
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}
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/* check overflow */
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emax = mpfr_get_emax ();
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set_emax (2);
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mpz_set_str (z, "7", 10);
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mpfr_set_z (x, z, MPFR_RNDU);
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MPFR_ASSERTN(mpfr_inf_p (x) && mpfr_sgn (x) > 0);
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set_emax (3);
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mpfr_set_prec (x, 2);
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mpz_set_str (z, "7", 10);
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mpfr_set_z (x, z, MPFR_RNDU);
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MPFR_ASSERTN(mpfr_inf_p (x) && mpfr_sgn (x) > 0);
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set_emax (emax);
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/* check underflow */
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emin = mpfr_get_emin ();
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set_emin (3);
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mpz_set_str (z, "1", 10);
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mpfr_set_z (x, z, MPFR_RNDZ);
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MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS(x));
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set_emin (2);
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mpfr_set_z (x, z, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS(x));
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set_emin (emin);
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mpz_clear (z);
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mpfr_clear (x);
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mpfr_clear (y);
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}
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int
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main (int argc, char *argv[])
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{
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long j;
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tests_start_mpfr ();
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check_large ();
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check (0, MPFR_RNDN);
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for (j = 0; j < 200000; j++)
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check (randlimb () & LONG_MAX, RND_RAND ());
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check0 ();
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tests_end_mpfr ();
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return 0;
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}
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