| /* Test file for mpfr_csc. |
| |
| Copyright 2005, 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_csc |
| #define REDUCE_EMAX 262143 /* otherwise arg. reduction is too expensive */ |
| #include "tgeneric.c" |
| |
| static void |
| check_specials (void) |
| { |
| mpfr_t x, y; |
| |
| mpfr_init2 (x, 123L); |
| mpfr_init2 (y, 123L); |
| |
| mpfr_set_nan (x); |
| mpfr_csc (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: csc(NaN) != NaN\n"); |
| exit (1); |
| } |
| |
| mpfr_set_inf (x, 1); |
| mpfr_csc (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: csc(Inf) != NaN\n"); |
| exit (1); |
| } |
| |
| mpfr_set_inf (x, -1); |
| mpfr_csc (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: csc(-Inf) != NaN\n"); |
| exit (1); |
| } |
| |
| /* csc(+/-0) = +/-Inf */ |
| mpfr_set_ui (x, 0, GMP_RNDN); |
| mpfr_csc (y, x, GMP_RNDN); |
| if (! (mpfr_inf_p (y) && mpfr_sgn (y) > 0)) |
| { |
| printf ("Error: csc(+0) != +Inf\n"); |
| exit (1); |
| } |
| mpfr_neg (x, x, GMP_RNDN); |
| mpfr_csc (y, x, GMP_RNDN); |
| if (! (mpfr_inf_p (y) && mpfr_sgn (y) < 0)) |
| { |
| printf ("Error: csc(-0) != -Inf\n"); |
| exit (1); |
| } |
| |
| mpfr_clear (x); |
| mpfr_clear (y); |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| tests_start_mpfr (); |
| |
| check_specials (); |
| |
| test_generic (2, 100, 10); |
| |
| tests_end_mpfr (); |
| return 0; |
| } |