--- /dev/null
+/* tyn -- test file for the Bessel function of second kind
+
+Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
+Contributed by the Arenaire and Cacao 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 2.1 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.LIB. If not, write to
+the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mpfr-test.h"
+
+int
+main (int argc, char *argv[])
+{
+ mpfr_t x, y;
+ long n;
+ mp_prec_t prec = 53;
+
+ tests_start_mpfr ();
+
+ mpfr_init (x);
+ mpfr_init (y);
+
+ if (argc != 1)
+ {
+ if (argc != 4)
+ {
+ printf ("Usage: tyn n x prec\n");
+ exit (1);
+ }
+ n = atoi (argv[1]);
+ prec = atoi (argv[3]);
+ mpfr_set_prec (x, prec);
+ mpfr_set_prec (y, prec);
+ mpfr_set_str (x, argv[2], 10, GMP_RNDN);
+ mpfr_yn (y, n, x, GMP_RNDN);
+ printf ("Y(%ld,", n);
+ mpfr_out_str (stdout, 10, 0, x, GMP_RNDN);
+ printf (")=");
+ mpfr_out_str (stdout, 10, 0, y, GMP_RNDN);
+ printf ("\n");
+ goto end;
+ }
+
+ /* special values */
+ mpfr_set_nan (x);
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_nan_p (y));
+
+ mpfr_set_inf (x, 1); /* +Inf */
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y));
+
+ mpfr_set_inf (x, -1); /* -Inf */
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_nan_p (y));
+
+ mpfr_set_ui (x, 0, GMP_RNDN); /* +0 */
+ mpfr_yn (y, 0, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y0(+0)=-Inf */
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y17(+0)=-Inf */
+ mpfr_yn (y, -17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_POS (y)); /* y(-17,+0)=+Inf */
+ mpfr_yn (y, -42, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y(-42,+0)=-Inf */
+
+ mpfr_set_ui (x, 0, GMP_RNDN);
+ mpfr_neg (x, x, GMP_RNDN); /* -0 */
+ mpfr_yn (y, 0, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y0(-0)=-Inf */
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y17(-0)=-Inf */
+ mpfr_yn (y, -17, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_POS (y)); /* y(-17,-0)=+Inf */
+ mpfr_yn (y, -42, x, GMP_RNDN);
+ MPFR_ASSERTN(mpfr_inf_p (y) && MPFR_IS_NEG (y)); /* y(-42,-0)=-Inf */
+
+ mpfr_set_prec (x, 53);
+ mpfr_set_prec (y, 53);
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, 0, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "0.00010110100110000000001000100110111100110101100011011111");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=0, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, 1, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "-0.110001111111110110010000001111101011001101011100101");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=1, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, -1, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "0.110001111111110110010000001111101011001101011100101");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=-1, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, 2, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "-1.101001101001001100100010101001000101101000010010001");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=2, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, -2, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "-1.101001101001001100100010101001000101101000010010001");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=-2, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, 17, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "-0.11000100111000100010101101011000110011001101100001011E60");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=17, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_yn (y, -17, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "0.11000100111000100010101101011000110011001101100001011E60");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=-17, x=1, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 17, GMP_RNDN);
+ mpfr_yn (y, 1, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "0.00101010110011011111001100000001101011011001111111");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error in mpfr_yn for n=1, x=17, rnd=GMP_RNDN\n");
+ printf ("Expected "); mpfr_dump (x);
+ printf ("Got "); mpfr_dump (y);
+ exit (1);
+ }
+
+ end:
+ mpfr_clear (x);
+ mpfr_clear (y);
+
+ tests_end_mpfr ();
+ return 0;
+}
projects / msp430-gcc.git / blobdiff