2 * Copyright (C) 2011 Free Software Foundation, Inc.
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Eric Blake. */
22 #include "signature.h"
23 SIGNATURE_CHECK (ffs, int, (int));
33 for (j = 0; j < CHAR_BIT * sizeof i; j++)
40 main (int argc, char *argv[])
44 for (i = -128; i <= 128; i++)
45 ASSERT (ffs (i) == naive (i));
46 for (i = 0; i < CHAR_BIT * sizeof i; i++)
48 ASSERT (ffs (1 << i) == naive (1 << i));
49 ASSERT (ffs (1 << i) == i + 1);