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/* tdiv -- test file for mpc_div.
Copyright (C) 2002, 2008, 2009, 2011, 2013, 2020 INRIA
This file is part of GNU MPC.
GNU MPC 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 3 of the License, or (at your
option) any later version.
GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ .
*/
#include <stdlib.h>
#include "mpc-tests.h"
#define MPC_FUNCTION_CALL \
P[0].mpc_inex = mpc_div (P[1].mpc, P[2].mpc, P[3].mpc, P[4].mpc_rnd)
#define MPC_FUNCTION_CALL_REUSE_OP1 \
P[0].mpc_inex = mpc_div (P[1].mpc, P[1].mpc, P[3].mpc, P[4].mpc_rnd)
#define MPC_FUNCTION_CALL_REUSE_OP2 \
P[0].mpc_inex = mpc_div (P[1].mpc, P[2].mpc, P[1].mpc, P[4].mpc_rnd)
#include "data_check.tpl"
#include "tgeneric.tpl"
static void
bug20200206 (void)
{
mpfr_exp_t emin = mpfr_get_emin ();
mpfr_exp_t emax = mpfr_get_emax ();
mpc_t x, y, z, zr;
mpfr_set_emin (-1073);
mpfr_set_emax (0);
mpc_init2 (x, 53);
mpc_init2 (y, 53);
mpc_init2 (z, 53);
mpc_init2 (zr, 53);
mpfr_set_d (mpc_realref (x), -5.3310997889069899e-216, MPFR_RNDN);
mpfr_set_d (mpc_imagref (x), -4.9188093228194944e-89, MPFR_RNDN);
mpfr_set_d (mpc_realref (y), -3.6801500191882962e-14, MPFR_RNDN);
mpfr_set_d (mpc_imagref (y), 4.5420247980297260e-145, MPFR_RNDN);
mpc_div (z, x, y, MPC_RNDNN);
/* quotient is 1.44844440684571e-202 + 1.33657848108714e-75*I,
where both the real and imaginary parts fit in the exponent range */
mpfr_set_d (mpc_realref (zr), 0x2.d69b18295a8cep-672, MPFR_RNDN);
mpfr_set_d (mpc_imagref (zr), 0x9.ac3e51d39eea8p-252, MPFR_RNDN);
if (mpc_cmp (z, zr))
{
printf ("Incorrect division with reduced exponent range:\n");
mpfr_printf ("Expected (%Re,%Re)\n", mpc_realref (zr), mpc_imagref (zr));
mpfr_printf ("Got (%Re,%Re)\n", mpc_realref (z), mpc_imagref (z));
exit (1);
}
mpc_clear (x);
mpc_clear (y);
mpc_clear (z);
mpc_clear (zr);
mpfr_set_emin (emin);
mpfr_set_emax (emax);
}
int
main (void)
{
test_start ();
bug20200206 ();
data_check_template ("div.dsc", "div.dat");
tgeneric_template ("div.dsc", 2, 1024, 7, 4096);
test_end ();
return 0;
}
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