1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                      by AT&T Knowledge Ventures                      *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 /*
23  * used to test if -last requires -lm
24  *
25  *	arch		-last			-lm
26  *	----		-----			---
27  *	linux.sparc	sfdlen,sfputd		frexp,ldexp
28  */
29 
30 #include <math.h>
31 
32 int
33 main()
34 {
35 #if N & 1
36 	long double	value = 0;
37 #else
38 	double		value = 0;
39 #endif
40 #if N < 5
41 	int		exp = 0;
42 #endif
43 
44 #if N == 1
45 	return ldexpl(value, exp) != 0;
46 #endif
47 #if N == 2
48 	return ldexp(value, exp) != 0;
49 #endif
50 #if N == 3
51 	return frexpl(value, &exp) != 0;
52 #endif
53 #if N == 4
54 	return frexp(value, &exp) != 0;
55 #endif
56 #if N == 5
57 	return isnan(value);
58 #endif
59 #if N == 6
60 	return isnan(value);
61 #endif
62 }
63