1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1994-2011 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Eclipse Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.eclipse.org/org/documents/epl-v10.html *
11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <gsf@research.att.com> *
18 * *
19 ***********************************************************************/
20 /*
21 * -lm test #6
22 */
23
24 #define _ISOC99_SOURCE 1
25
26 #include <math.h>
27
28 int
main()29 main()
30 {
31 double value = -0.0;
32
33 return !signbit(value);
34 }
35