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974e12c1f0
Old version was 3.1.2 and is quite old: 2013-03-13 A lot has happened since then 4.0.1 is from 2018-02-07
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/* ty1 -- test file for the Bessel function of second kind (order 1)
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Copyright 2007-2018 Free Software Foundation, Inc.
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Contributed by the AriC 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. 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 "mpfr-test.h"
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#define TEST_FUNCTION mpfr_y1
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#define RAND_FUNCTION(x) mpfr_random2(x, MPFR_LIMB_SIZE (x), 8, RANDS)
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#define REDUCE_EMAX 262143 /* otherwise arg. reduction is too expensive */
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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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tests_start_mpfr ();
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mpfr_init (x);
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mpfr_init (y);
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/* special values */
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mpfr_set_nan (x);
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mpfr_y1 (y, x, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_nan_p (y));
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mpfr_set_inf (x, 1); /* +Inf */
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mpfr_y1 (y, x, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y));
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mpfr_set_inf (x, -1); /* -Inf */
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mpfr_y1 (y, x, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_nan_p (y));
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mpfr_set_ui (x, 0, MPFR_RNDN); /* +0 */
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mpfr_y1 (y, x, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y1(+0)=-Inf */
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mpfr_set_ui (x, 0, MPFR_RNDN);
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mpfr_neg (x, x, MPFR_RNDN); /* -0 */
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mpfr_y1 (y, x, MPFR_RNDN);
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MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y1(-0)=-Inf */
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mpfr_set_prec (x, 53);
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mpfr_set_prec (y, 53);
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mpfr_set_ui (x, 1, MPFR_RNDN);
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mpfr_y1 (y, x, MPFR_RNDN);
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mpfr_set_str_binary (x, "-0.110001111111110110010000001111101011001101011100101");
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if (mpfr_cmp (x, y))
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{
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printf ("Error in mpfr_y1 for x=1, rnd=MPFR_RNDN\n");
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printf ("Expected "); mpfr_dump (x);
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printf ("Got "); mpfr_dump (y);
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exit (1);
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}
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mpfr_set_si (x, -1, MPFR_RNDN);
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mpfr_y1 (y, x, MPFR_RNDN);
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if (!mpfr_nan_p (y))
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{
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printf ("Error in mpfr_y1 for x=-1, rnd=MPFR_RNDN\n");
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printf ("Expected NaN\n");
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printf ("Got "); 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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test_generic (MPFR_PREC_MIN, 100, 1);
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data_check ("data/y1", mpfr_y1, "mpfr_y1");
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tests_end_mpfr ();
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return 0;
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}
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