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/*
Copyright (C) 2012 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 "fmpr.h"
void
fmpr_randtest(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
{
fmpz_randtest(fmpr_manref(x), state, bits);
fmpz_randtest(fmpr_expref(x), state, mag_bits);
fmpz_sub_ui(fmpr_expref(x), fmpr_expref(x), fmpz_bits(fmpr_manref(x)));
_fmpr_normalise(fmpr_manref(x), fmpr_expref(x), bits, FMPR_RND_DOWN);
}
void
fmpr_randtest_not_zero(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
{
fmpz_randtest_not_zero(fmpr_manref(x), state, bits);
fmpz_randtest(fmpr_expref(x), state, mag_bits);
fmpz_sub_ui(fmpr_expref(x), fmpr_expref(x), fmpz_bits(fmpr_manref(x)));
_fmpr_normalise(fmpr_manref(x), fmpr_expref(x), bits, FMPR_RND_DOWN);
}
void
fmpr_randtest_special(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
{
switch (n_randint(state, 32))
{
case 0:
fmpr_zero(x);
break;
case 1:
fmpr_pos_inf(x);
break;
case 2:
fmpr_neg_inf(x);
break;
case 3:
fmpr_nan(x);
break;
default:
fmpr_randtest_not_zero(x, state, bits, mag_bits);
}
}
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