| /* 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; |
| } |