3 * Copyright (C) 2009 Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 double sqrt (double arg
)
29 x = frexp (arg, &exp);
41 temp = 0.5 * (1.0 + x);
54 temp *= 1L << (exp/2);
56 temp /= 1L << (-exp/2);
58 for (i = 0; i <= 4; i ++)
59 temp = 0.5 * (temp + arg / temp);*/
61 return __builtin_sqrt(arg
);