--- /dev/null
+/* Test file for mpfr_acosh.
+
+Copyright 2001, 2002, 2003, 2004, 2006, 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"
+
+#define TEST_FUNCTION mpfr_acosh
+#define TEST_RANDOM_POS 4
+#define TEST_RANDOM_EMIN 1
+#include "tgeneric.c"
+
+#define TEST_FUNCTION mpfr_acosh
+#define TEST_RANDOM_POS 1
+#define TEST_RANDOM_EMIN MPFR_EMAX_MAX
+#define TEST_RANDOM_EMAX MPFR_EMAX_MAX
+#define test_generic test_generic_huge
+#include "tgeneric.c"
+
+static void
+special (void)
+{
+ mpfr_t x, y;
+
+ mpfr_init (x);
+ mpfr_init (y);
+
+ MPFR_SET_INF(x);
+ mpfr_set_ui (y, 1, GMP_RNDN);
+ mpfr_acosh (x, y, GMP_RNDN);
+ if (MPFR_IS_INF(x) || MPFR_IS_NAN(x) )
+ {
+ printf ("Inf flag not clears in acosh!\n");
+ exit (1);
+ }
+ if (mpfr_cmp_ui (x, 0))
+ {
+ printf ("Error: mpfr_acosh(1) <> 0\n");
+ exit (1);
+ }
+
+ MPFR_SET_NAN(x);
+ mpfr_acosh (x, y, GMP_RNDN);
+ if (MPFR_IS_NAN(x) || MPFR_IS_INF(x) )
+ {
+ printf ("NAN flag not clears in acosh!\n");
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 0, GMP_RNDN);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_nan_p (y))
+ {
+ printf ("Error: mpfr_acosh(0) <> NaN\n");
+ exit (1);
+ }
+
+ mpfr_set_si (x, -1, GMP_RNDN);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_nan_p (y))
+ {
+ printf ("Error: mpfr_acosh(-1) <> NaN\n");
+ exit (1);
+ }
+
+ MPFR_SET_NAN(x);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_nan_p (y))
+ {
+ printf ("Error: mpfr_acosh(NaN) <> NaN\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_inf_p (y) || mpfr_sgn (y) < 0)
+ {
+ printf ("Error: mpfr_acosh(+Inf) <> +Inf\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, -1);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_nan_p (y))
+ {
+ printf ("Error: mpfr_acosh(-Inf) <> NaN\n");
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_div_2exp (x, x, 1, GMP_RNDN);
+ mpfr_acosh (y, x, GMP_RNDN);
+ if (!mpfr_nan_p (y))
+ {
+ printf ("Error: mpfr_acosh(1/2) <> NaN\n");
+ exit (1);
+ }
+
+ mpfr_set_prec (x, 32);
+ mpfr_set_prec (y, 32);
+ mpfr_set_str_binary (x, "1.000001101011101111001011");
+ mpfr_acosh (y, x, GMP_RNDN);
+ mpfr_set_str_binary (x, "0.111010100101101001010001101001E-2");
+ if (mpfr_cmp (x, y))
+ {
+ printf ("Error: mpfr_acosh (1)\n");
+ exit (1);
+ }
+
+ mpfr_clear (x);
+ mpfr_clear (y);
+}
+
+/* With MPFR 2.3.0, this yields an assertion failure in mpfr_acosh. */
+static void
+bug20070831 (void)
+{
+ mpfr_t x, y, z;
+ int inex;
+
+ mpfr_init2 (x, 256);
+ mpfr_init2 (y, 32);
+ mpfr_init2 (z, 32);
+
+ mpfr_set_ui (x, 1, GMP_RNDN);
+ mpfr_nextabove (x);
+ inex = mpfr_acosh (y, x, GMP_RNDZ);
+ mpfr_set_ui_2exp (z, 1, -127, GMP_RNDN);
+ mpfr_nextbelow (z);
+ if (!mpfr_equal_p (y, z))
+ {
+ printf ("Error in bug20070831 (1):\nexpected ");
+ mpfr_dump (z);
+ printf ("got ");
+ mpfr_dump (y);
+ exit (1);
+ }
+ MPFR_ASSERTN (inex < 0);
+
+ mpfr_nextabove (x);
+ mpfr_set_prec (y, 29);
+ inex = mpfr_acosh (y, x, GMP_RNDN);
+ mpfr_set_str_binary (z, "1.011010100000100111100110011E-127");
+ if (!mpfr_equal_p (y, z))
+ {
+ printf ("Error in bug20070831 (2):\nexpected ");
+ mpfr_dump (z);
+ printf ("got ");
+ mpfr_dump (y);
+ exit (1);
+ }
+ MPFR_ASSERTN (inex < 0);
+
+ mpfr_clears (x, y, z, (mpfr_ptr) 0);
+}
+
+static void
+huge (void)
+{
+ mpfr_t x, y, z;
+ int inex;
+
+ /* TODO: extend the exponent range and use mpfr_get_emax (). */
+ mpfr_inits2 (32, x, y, z, (mpfr_ptr) 0);
+ mpfr_set_ui_2exp (x, 1, 1073741822, GMP_RNDN);
+ inex = mpfr_acosh (y, x, GMP_RNDN);
+ mpfr_set_str_binary (z, "0.10110001011100100001011111110101E30");
+ if (!mpfr_equal_p (y, z))
+ {
+ printf ("Error in huge:\nexpected ");
+ mpfr_dump (z);
+ printf ("got ");
+ mpfr_dump (y);
+ exit (1);
+ }
+ MPFR_ASSERTN (inex < 0);
+
+ mpfr_clears (x, y, z, (mpfr_ptr) 0);
+}
+
+int
+main (int argc, char *argv[])
+{
+ tests_start_mpfr ();
+
+ special ();
+ bug20070831 ();
+ huge ();
+
+ test_generic (2, 100, 25);
+ test_generic_huge (2, 100, 5);
+
+ data_check ("data/acosh", mpfr_acosh, "mpfr_acosh");
+ bad_cases (mpfr_acosh, mpfr_cosh, "mpfr_acosh", 0, -128, 29,
+ 4, 128, 800, 40);
+
+ tests_end_mpfr ();
+ return 0;
+}
projects / msp430-gcc.git / blobdiff