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96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/* Test file for mpfr_csc.
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Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
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Contributed by the AriC and Caramel 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 <stdio.h>
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#include <stdlib.h>
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#include "mpfr-test.h"
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#define TEST_FUNCTION mpfr_csc
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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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static void
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check_specials (void)
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{
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mpfr_t x, y;
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mpfr_init2 (x, 123L);
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mpfr_init2 (y, 123L);
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mpfr_set_nan (x);
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mpfr_csc (y, x, MPFR_RNDN);
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if (! mpfr_nan_p (y))
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{
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printf ("Error: csc(NaN) != NaN\n");
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exit (1);
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}
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mpfr_set_inf (x, 1);
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mpfr_csc (y, x, MPFR_RNDN);
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if (! mpfr_nan_p (y))
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{
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printf ("Error: csc(Inf) != NaN\n");
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exit (1);
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}
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mpfr_set_inf (x, -1);
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mpfr_csc (y, x, MPFR_RNDN);
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if (! mpfr_nan_p (y))
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{
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printf ("Error: csc(-Inf) != NaN\n");
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exit (1);
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}
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/* csc(+/-0) = +/-Inf */
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mpfr_set_ui (x, 0, MPFR_RNDN);
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mpfr_csc (y, x, MPFR_RNDN);
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if (! (mpfr_inf_p (y) && mpfr_sgn (y) > 0))
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{
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printf ("Error: csc(+0) != +Inf\n");
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exit (1);
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}
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mpfr_neg (x, x, MPFR_RNDN);
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mpfr_csc (y, x, MPFR_RNDN);
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if (! (mpfr_inf_p (y) && mpfr_sgn (y) < 0))
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{
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printf ("Error: csc(-0) != -Inf\n");
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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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}
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int
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main (int argc, char *argv[])
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{
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tests_start_mpfr ();
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check_specials ();
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test_generic (2, 100, 10);
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tests_end_mpfr ();
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return 0;
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}
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