arb/arf/randtest.c

72 lines
2 KiB
C

/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
ARB 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2014 Fredrik Johansson
******************************************************************************/
#include "arf.h"
void
arf_randtest(arf_t x, flint_rand_t state, long bits, long mag_bits)
{
fmpz_t t;
fmpz_init(t);
fmpz_randtest(t, state, bits);
arf_set_fmpz(x, t);
if (!arf_is_zero(x))
fmpz_randtest(ARF_EXPREF(x), state, mag_bits);
fmpz_clear(t);
}
void
arf_randtest_not_zero(arf_t x, flint_rand_t state, long bits, long mag_bits)
{
fmpz_t t;
fmpz_init(t);
fmpz_randtest_not_zero(t, state, bits);
arf_set_fmpz(x, t);
fmpz_randtest(ARF_EXPREF(x), state, mag_bits);
fmpz_clear(t);
}
void
arf_randtest_special(arf_t x, flint_rand_t state, long bits, long mag_bits)
{
switch (n_randint(state, 32))
{
case 0:
arf_zero(x);
break;
case 1:
arf_pos_inf(x);
break;
case 2:
arf_neg_inf(x);
break;
case 3:
arf_nan(x);
break;
default:
arf_randtest_not_zero(x, state, bits, mag_bits);
}
}