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.
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/* test file for digamma function
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Copyright 2009-2025 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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#define TEST_FUNCTION mpfr_digamma
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#include "tgeneric.c"
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static void
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special (void)
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{
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mpfr_t x, y;
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mpfr_init (x);
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mpfr_init (y);
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mpfr_set_inf (y, -1);
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mpfr_set_inf (x, 1);
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mpfr_digamma (y, x, MPFR_RNDN);
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if (mpfr_inf_p (y) == 0 || mpfr_sgn (y) < 0)
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{
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printf ("error for Psi(+Inf)\n");
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printf ("expected +Inf\n");
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printf ("got ");
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mpfr_dump (y);
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exit (1);
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}
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mpfr_clear (x);
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mpfr_clear (y);
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}
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/* With some GMP_CHECK_RANDOMIZE values, test_generic triggers an error
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tests_addsize(): too much memory (576460752303432776 bytes)
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Each time on prec = 200, n = 3, xprec = 140.
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The following test is a more general testcase.
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*/
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static void
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bug20210206 (void)
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{
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#define NPREC 4
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mpfr_t x, y[NPREC], z;
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mpfr_exp_t emin, emax;
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int i, precx, precy[NPREC] = { 200, 400, 520, 1416 };
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emin = mpfr_get_emin ();
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emax = mpfr_get_emax ();
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set_emin (MPFR_EMIN_MIN);
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set_emax (MPFR_EMAX_MAX);
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for (i = 0; i < NPREC; i++)
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mpfr_init2 (y[i], precy[i]);
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mpfr_init2 (z, precy[0]);
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for (precx = MPFR_PREC_MIN; precx < 150; precx++)
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{
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mpfr_init2 (x, precx);
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mpfr_setmax (x, __gmpfr_emax);
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for (i = 0; i < NPREC; i++)
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mpfr_digamma (y[i], x, MPFR_RNDA);
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mpfr_set (z, y[1], MPFR_RNDA);
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MPFR_ASSERTN (mpfr_equal_p (y[0], z));
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mpfr_clear (x);
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}
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for (i = 0; i < NPREC; i++)
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mpfr_clear (y[i]);
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mpfr_clear (z);
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set_emin (emin);
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set_emax (emax);
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}
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/* another test that fails with GMP_CHECK_RANDOMIZE=1612741376857003
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on revision 14398 */
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static void
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bug20210208 (void)
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{
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mpfr_t x, y;
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int inex;
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mpfr_init2 (x, 73);
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mpfr_init2 (y, 1);
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mpfr_set_str (x, "1.4613470547060071827450", 10, MPFR_RNDN);
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mpfr_clear_flags ();
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inex = mpfr_digamma (y, x, MPFR_RNDU);
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MPFR_ASSERTN (mpfr_cmp_si_2exp (y, -1, -12) == 0);
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MPFR_ASSERTN (inex > 0);
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MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
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mpfr_clear (x);
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mpfr_clear (y);
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}
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/* another test that fails with GMP_CHECK_RANDOMIZE=1613197421465830
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on revision 14429 */
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static void
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bug20210215 (void)
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{
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mpfr_t x, y;
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int inex;
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mpfr_init2 (x, 510);
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mpfr_init2 (y, 4);
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mpfr_set_str (x, "-8.2923051438433494998166335341807999322052669984208422481227138906096000469898717007386115912802685588348601663465077353194268894939972221117314512518182580e+35", 10, MPFR_RNDN);
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mpfr_clear_flags ();
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inex = mpfr_digamma (y, x, MPFR_RNDU);
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MPFR_ASSERTN (mpfr_cmp_ui0 (y, 88) == 0);
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MPFR_ASSERTN (inex > 0);
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MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
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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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tests_start_mpfr ();
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special ();
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bug20210206 ();
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bug20210208 ();
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bug20210215 ();
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test_generic (MPFR_PREC_MIN, 200, 20);
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data_check ("data/digamma", mpfr_digamma, "mpfr_digamma");
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tests_end_mpfr ();
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return 0;
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}
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