/*=============================================================================

    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 "fmprb_poly.h"

static void
fmprb_randtest2(fmprb_t x, flint_rand_t state, long prec, long mag_bits)
{
    fmpr_randtest(fmprb_midref(x), state, prec, mag_bits);
    fmpr_randtest_not_zero(fmprb_radref(x), state, FMPRB_RAD_PREC, 4);
    fmpr_abs(fmprb_radref(x), fmprb_radref(x));
    fmpz_add(fmpr_expref(fmprb_radref(x)), fmpr_expref(fmprb_radref(x)), fmpr_expref(fmprb_midref(x)));
}

void
fmprb_poly_randtest(fmprb_poly_t poly, flint_rand_t state, long len, long prec, long mag_bits)
{
    long i;

    fmprb_poly_fit_length(poly, len);

    if (n_randint(state, 2))
        for (i = 0; i < len; i++)
            fmprb_randtest(poly->coeffs + i, state, prec, mag_bits);
    else
        for (i = 0; i < len; i++)
            fmprb_randtest2(poly->coeffs + i, state, prec, mag_bits);

    _fmprb_poly_set_length(poly, len);
    _fmprb_poly_normalise(poly);
}