arb/arf/randtest.c
2021-05-18 01:41:46 +02:00

58 lines
1.4 KiB
C

/*
Copyright (C) 2014 Fredrik Johansson
This file is part of Arb.
Arb is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "arf.h"
void
arf_randtest(arf_t x, flint_rand_t state, slong bits, slong 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, slong bits, slong 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, slong bits, slong 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);
}
}