/*
    Copyright (C) 2015 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 "flint/double_extras.h"
#include "mag.h"

void
mag_set_d(mag_t z, double c)
{
    if (c < 0.0)
        c = -c;

    if (c == 0.0)
    {
        mag_zero(z);
    }
    else if ((c != c) || c == D_INF)
    {
        mag_inf(z);
    }
    else
    {
        _fmpz_demote(MAG_EXPREF(z));
        MAG_SET_D_2EXP(MAG_MAN(z), MAG_EXP(z), c, 0);
    }
}

void
mag_set_d_lower(mag_t z, double c)
{
    if (c < 0.0)
        c = -c;

    if (c == 0.0 || (c != c))
    {
        mag_zero(z);
    }
    else if (c == D_INF)
    {
        mag_inf(z);
    }
    else
    {
        _fmpz_demote(MAG_EXPREF(z));
        MAG_SET_D_2EXP_LOWER(MAG_MAN(z), MAG_EXP(z), c, 0);
    }
}