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/* template for (complex,complex) -> complex function, for example add
Copyright (C) 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/ .
*/
#define CAT1(X,Y) X ## Y
#define CAT2(X,Y) CAT1(X,Y)
#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)
#define FUN CAT2(test_,FOO)
#define MPC_FOO CAT2(mpc_,FOO)
#ifndef CFOO
#define CFOO CAT2(c,FOO)
#endif
#define BAR TOSTRING(FOO)
static void
FUN (mpfr_prec_t p, unsigned long n)
{
unsigned long i = 0;
mpc_t x, y, z, t;
double complex xx, yy, zz;
int inex;
unsigned long errors = 0, max_err_re = 0, max_err_im = 0;
gmp_randseed_ui (state, seed);
mpc_init2 (x, p);
mpc_init2 (y, p);
mpc_init2 (z, p);
mpc_init2 (t, p);
for (i = 0; i < n; i++)
{
mpc_urandom (x, state);
mpc_urandom (y, state);
inex = MPC_FOO (z, x, y, MPC_RNDNN);
mpfr_subnormalize (mpc_realref (z), MPC_INEX_RE(inex), MPFR_RNDN);
mpfr_subnormalize (mpc_imagref (z), MPC_INEX_IM(inex), MPFR_RNDN);
xx = mpc_get_dc (x, MPC_RNDNN);
yy = mpc_get_dc (y, MPC_RNDNN);
zz = CFOO(xx, yy);
mpc_set_dc (t, zz, MPFR_RNDN);
if (mpc_cmp (z, t) != 0)
{
unsigned long err_re = ulp_error (mpc_realref (t), mpc_realref (z));
unsigned long err_im = ulp_error (mpc_imagref (t), mpc_imagref (z));
if (verbose > 0 && (err_re > max_err_re || err_im > max_err_im))
{
printf (" mpc_%s and c%s differ by (%lu,%lu) ulp(s)\n",
BAR, BAR, err_re, err_im);
mpfr_printf (" for x=(%Re,%Re)\n y=(%Re,%Re)\n",
mpc_realref (x), mpc_imagref (x),
mpc_realref (y), mpc_imagref (y));
mpfr_printf (" mpc_%s gives (%Re,%Re)\n", BAR,
mpc_realref (z), mpc_imagref (z));
mpfr_printf (" c%s gives (%Re,%Re)\n", BAR,
mpc_realref (t), mpc_imagref (t));
}
errors ++;
if (err_re > max_err_re)
max_err_re = err_re;
if (err_im > max_err_im)
max_err_im = err_im;
}
}
mpc_clear (x);
mpc_clear (y);
mpc_clear (z);
mpc_clear (t);
printf ("Number of errors for %s: %lu/%lu (max %lu,%lu)\n", BAR, errors, n,
max_err_re, max_err_im);
}
#undef FOO
#undef CFOO
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