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https://review.haiku-os.org/buildtools
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b58ddff026
* merged mpfr 3.0.0 and gmp 5.0.1 in buildtools trunk git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@37378 a95241bf-73f2-0310-859d-f6bbb57e9c96
123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
/* Test file for mpfr_log10.
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Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by the Arenaire and Cacao 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. If not, see
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http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "mpfr-test.h"
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#ifdef CHECK_EXTERNAL
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static int
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test_log10 (mpfr_ptr a, mpfr_srcptr b, mpfr_rnd_t rnd_mode)
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{
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int res;
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int ok = rnd_mode == MPFR_RNDN && mpfr_number_p (b) && mpfr_get_prec (a)>=53;
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if (ok)
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{
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mpfr_print_raw (b);
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}
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res = mpfr_log10 (a, b, rnd_mode);
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if (ok)
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{
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printf (" ");
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mpfr_print_raw (a);
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printf ("\n");
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}
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return res;
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}
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#else
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#define test_log10 mpfr_log10
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#endif
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#define TEST_FUNCTION test_log10
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#define TEST_RANDOM_POS 8
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#include "tgeneric.c"
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int
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main (int argc, char *argv[])
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{
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mpfr_t x, y;
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unsigned int n;
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int inex;
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tests_start_mpfr ();
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test_generic (2, 100, 20);
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mpfr_init2 (x, 53);
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mpfr_init2 (y, 53);
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/* check NaN */
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mpfr_set_nan (x);
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inex = test_log10 (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_nan_p (y) && inex == 0);
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/* check Inf */
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mpfr_set_inf (x, -1);
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inex = test_log10 (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_nan_p (y) && inex == 0);
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mpfr_set_inf (x, 1);
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inex = test_log10 (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_inf_p (y) && mpfr_sgn (y) > 0 && inex == 0);
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mpfr_set_ui (x, 0, MPFR_RNDN);
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inex = test_log10 (x, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_inf_p (x) && mpfr_sgn (x) < 0 && inex == 0);
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mpfr_set_ui (x, 0, MPFR_RNDN);
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mpfr_neg (x, x, MPFR_RNDN);
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inex = test_log10 (x, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_inf_p (x) && mpfr_sgn (x) < 0 && inex == 0);
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/* check negative argument */
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mpfr_set_si (x, -1, MPFR_RNDN);
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inex = test_log10 (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_nan_p (y) && inex == 0);
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/* check log10(1) = 0 */
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mpfr_set_ui (x, 1, MPFR_RNDN);
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inex = test_log10 (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y) && inex == 0);
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/* check log10(10^n)=n */
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mpfr_set_ui (x, 1, MPFR_RNDN);
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for (n = 1; n <= 15; n++)
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{
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mpfr_mul_ui (x, x, 10, MPFR_RNDN); /* x = 10^n */
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inex = test_log10 (y, x, MPFR_RNDN);
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if (mpfr_cmp_ui (y, n))
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{
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printf ("log10(10^n) <> n for n=%u\n", n);
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exit (1);
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}
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MPFR_ASSERTN (inex == 0);
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}
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mpfr_clear (x);
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mpfr_clear (y);
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data_check ("data/log10", mpfr_log10, "mpfr_log10");
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tests_end_mpfr ();
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return 0;
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}
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