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/* tsqrt -- test file for mpc_sqrt.
Copyright (C) 2008, 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 "mpc-tests.h"
#define MPC_FUNCTION_CALL \
P[0].mpc_inex = mpc_sqrt (P[1].mpc, P[2].mpc, P[3].mpc_rnd)
#define MPC_FUNCTION_CALL_REUSE_OP1 \
P[0].mpc_inex = mpc_sqrt (P[1].mpc, P[1].mpc, P[3].mpc_rnd)
#include "data_check.tpl"
#include "tgeneric.tpl"
/* check with reduced exponent range */
static void
bug20200207 (void)
{
mpfr_exp_t emin = mpfr_get_emin ();
mpfr_exp_t emax = mpfr_get_emax ();
mpc_t x, z, zr;
mpfr_set_emin (-148);
mpfr_set_emax (128);
mpc_init2 (x, 24);
mpc_init2 (z, 24);
mpc_init2 (zr, 24);
mpfr_set_d (mpc_realref (x), -1.89432151320234e24, MPFR_RNDN);
mpfr_set_d (mpc_imagref (x), -1.06397209600000e9, MPFR_RNDN);
mpc_sqrt (z, x, MPC_RNDNN);
/* square root is 0.00038652126908433 - 1.37634353022868e12*I */
mpfr_set_d (mpc_realref (zr), 0.00038652126908433, MPFR_RNDN);
mpfr_set_d (mpc_imagref (zr), -1.37634353022868e12, MPFR_RNDN);
if (mpc_cmp (z, zr))
{
printf ("Incorrect square root 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 (z);
mpc_clear (zr);
mpfr_set_emin (emin);
mpfr_set_emax (emax);
}
int
main (void)
{
test_start ();
bug20200207 ();
data_check_template ("sqrt.dsc", "sqrt.dat");
tgeneric_template ("sqrt.dsc", 2, 1024, 7, 256);
test_end ();
return 0;
}
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