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/* template for complex -> real function, for example abs
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)
#define CFOO CAT2(c,FOO)
#define BAR TOSTRING(FOO)
static void
FUN (mpfr_prec_t p, unsigned long n)
{
unsigned long i = 0;
mpc_t x;
mpfr_t z, t;
TYPE complex xx;
TYPE zz;
int inex;
unsigned long errors = 0, max_err = 0;
gmp_randseed_ui (state, seed);
mpc_init2 (x, p);
mpfr_init2 (z, p);
mpfr_init2 (t, p);
for (i = 0; i < n; i++)
{
mpc_urandom (x, state);
inex = MPC_FOO (z, x, MPC_RNDNN);
mpfr_subnormalize (z, inex, MPFR_RNDN);
xx = mpc_get_type (x, MPC_RNDNN);
zz = CFOO (xx);
mpfr_set_type (t, zz, MPFR_RNDN);
if (mpfr_cmp (z, t) != 0)
{
unsigned long err = ulp_error (t, z);
if (verbose > 0 && err > max_err)
{
mpfr_printf (" mpc_%s and c%s differ by %lu ulp(s)\n for x=(%Re,%Re)\n",
BAR, BAR, err,
mpc_realref (x), mpc_imagref (x));
mpfr_printf (" mpc_%s gives %Re\n", BAR, z);
mpfr_printf (" c%s gives %Re\n", BAR, t);
}
errors++;
if (err > max_err)
max_err = err;
}
}
mpc_clear (x);
mpfr_clear (z);
mpfr_clear (t);
printf ("Number of errors for %s: %lu/%lu (max %lu)\n", BAR, errors, n, max_err);
}
#undef FOO
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