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/* Test file for mpfr_coth.
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Copyright 2005 Free Software Foundation, Inc.
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This file is part of the MPFR Library.
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The 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 2.1 of the License, or (at your
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option) any later version.
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The 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 MPFR Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Place, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "mpfr-test.h"
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#define TEST_FUNCTION mpfr_coth
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mpfr_coth (y, x, GMP_RNDN);
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printf ("Error: coth(NaN) != NaN\n");
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mpfr_coth (y, x, GMP_RNDN);
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if (mpfr_cmp_ui (y, 1))
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printf ("Error: coth(Inf) != 1\n");
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mpfr_coth (y, x, GMP_RNDN);
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if (mpfr_cmp_si (y, -1))
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printf ("Error: coth(-Inf) != -1\n");
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/* cot(+/-0) = +/-0 */
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mpfr_set_ui (x, 0, GMP_RNDN);
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mpfr_coth (y, x, GMP_RNDN);
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if (! (mpfr_zero_p (y) && MPFR_SIGN (y) > 0))
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printf ("Error: coth(+0) != +0\n");
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mpfr_neg (x, x, GMP_RNDN);
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mpfr_coth (y, x, GMP_RNDN);
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if (! (mpfr_zero_p (y) && MPFR_SIGN (y) < 0))
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printf ("Error: coth(-0) != -0\n");
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/* bug found by Rob (Sisyphus) on 16 Sep 2005 */
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mpfr_set_ui (x, 2, GMP_RNDN);
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mpfr_coth (y, x, GMP_RNDN);
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if (mpfr_cmp_ui (y, 1))
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printf ("Error for coth(2), expected 1, got ");
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main (int argc, char *argv[])
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test_generic (2, 200, 10);