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142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/* tcosh -- test file for mpc_cosh.
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Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013 INRIA
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This file is part of GNU MPC.
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GNU MPC is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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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 this program. If not, see http://www.gnu.org/licenses/ .
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*/
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#include <stdlib.h>
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#include "mpc-tests.h"
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static void
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pure_real_argument (void)
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{
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/* cosh(x -i*0) = cosh(x) +i*0 if x<0 */
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/* cosh(x -i*0) = cosh(x) -i*0 if x>0 */
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/* cosh(x +i*0) = cosh(x) -i*0 if x<0 */
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/* cosh(x -i*0) = cosh(x) +i*0 if x>0 */
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mpc_t u;
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mpc_t z;
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mpc_t cosh_z;
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mpc_init2 (z, 2);
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mpc_init2 (u, 100);
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mpc_init2 (cosh_z, 100);
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/* cosh(1 +i*0) = cosh(1) +i*0 */
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mpc_set_ui_ui (z, 1, 0, MPC_RNDNN);
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mpfr_cosh (mpc_realref (u), mpc_realref (z), MPFR_RNDN);
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mpfr_set_ui (mpc_imagref (u), 0, MPFR_RNDN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(1 -i*0) = cosh(1) -i*0 */
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mpc_conj (z, z, MPC_RNDNN);
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mpc_conj (u, u, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || !mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(-1 +i*0) = cosh(1) -i*0 */
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mpc_neg (z, z, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || !mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(-1 -i*0) = cosh(1) +i*0 */
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mpc_conj (z, z, MPC_RNDNN);
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mpc_conj (u, u, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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mpc_clear (cosh_z);
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mpc_clear (z);
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mpc_clear (u);
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}
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static void
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pure_imaginary_argument (void)
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{
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/* cosh(+0 +i*y) = cos y +i*0*sin y */
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/* cosh(-0 +i*y) = cos y -i*0*sin y */
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mpc_t u;
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mpc_t z;
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mpc_t cosh_z;
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mpc_init2 (z, 2);
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mpc_init2 (u, 100);
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mpc_init2 (cosh_z, 100);
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/* cosh(+0 +i) = cos(1) + i*0 */
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mpc_set_ui_ui (z, 0, 1, MPC_RNDNN);
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mpfr_cos (mpc_realref (u), mpc_imagref (z), MPFR_RNDN);
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mpfr_set_ui (mpc_imagref (u), 0, MPFR_RNDN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(+0 -i) = cos(1) - i*0 */
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mpc_conj (z, z, MPC_RNDNN);
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mpc_conj (u, u, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || !mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(-0 +i) = cos(1) - i*0 */
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mpc_neg (z, z, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || !mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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/* cosh(-0 -i) = cos(1) + i*0 */
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mpc_conj (z, z, MPC_RNDNN);
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mpc_conj (u, u, MPC_RNDNN);
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mpc_cosh (cosh_z, z, MPC_RNDNN);
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if (mpc_cmp (cosh_z, u) != 0 || mpfr_signbit (mpc_imagref (cosh_z)))
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TEST_FAILED ("mpc_cosh", z, cosh_z, u, MPC_RNDNN);
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mpc_clear (cosh_z);
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mpc_clear (z);
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mpc_clear (u);
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}
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#define MPC_FUNCTION_CALL \
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P[0].mpc_inex = mpc_cosh (P[1].mpc, P[2].mpc, P[3].mpc_rnd)
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#define MPC_FUNCTION_CALL_REUSE_OP1 \
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P[0].mpc_inex = mpc_cosh (P[1].mpc, P[1].mpc, P[3].mpc_rnd)
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#include "data_check.tpl"
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#include "tgeneric.tpl"
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int
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main (void)
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{
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test_start ();
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data_check_template ("cosh.dsc", "cosh.dat");
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tgeneric_template ("cosh.dsc", 2, 512, 7, 7);
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/* FIXME: remove the following tests? (Now tested by tgeneric) */
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pure_real_argument ();
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pure_imaginary_argument ();
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test_end ();
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return 0;
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}
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