arb/fmpr/randtest.c
2012-08-05 19:57:08 +02:00

56 lines
1.8 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) 2012 Fredrik Johansson
******************************************************************************/
#include "fmpr.h"
void
fmpr_randtest(fmpr_t x, flint_rand_t state, long bits, long exp_bits)
{
fmpz_randtest_not_zero(fmpr_manref(x), state, bits);
fmpz_randtest(fmpr_expref(x), state, exp_bits);
_fmpr_normalise(fmpr_manref(x), fmpr_expref(x), bits, FMPR_RND_DOWN);
}
void
fmpr_randtest_special(fmpr_t x, flint_rand_t state, long bits, long exp_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(x, state, bits, exp_bits);
}
}