1/* $NetBSD: t_ilogb.c,v 1.9 2018/06/14 21:57:25 maya Exp $ */
2
3/*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Maya Rashish.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_ilogb.c,v 1.9 2018/06/14 21:57:25 maya Exp $");
33
34#include <atf-c.h>
35#include <fenv.h>
36#include <limits.h>
37#include <math.h>
38
39#ifndef __HAVE_FENV
40
41# define ATF_CHECK_RAISED_INVALID
42# define ATF_CHECK_RAISED_NOTHING
43
44#else
45# define ATF_CHECK_RAISED_INVALID do { \
46	int r = fetestexcept(FE_ALL_EXCEPT); \
47	ATF_CHECK_MSG((r & FE_INVALID) != 0, \
48	    "r & FE_INVALID == 0 (r=%#x, FE_INVALID=%#x)\n", \
49	     r, FE_INVALID); \
50	(void)feclearexcept(FE_ALL_EXCEPT); \
51} while (/*CONSTCOND*/0)
52
53# define ATF_CHECK_RAISED_NOTHING do { \
54	int r = fetestexcept(FE_ALL_EXCEPT); \
55	ATF_CHECK_MSG(r == 0, "r=%#x != 0\n", r); \
56	(void)feclearexcept(FE_ALL_EXCEPT); \
57} while (/*CONSTCOND*/0)
58#endif
59
60ATF_TC(ilogb);
61ATF_TC_HEAD(ilogb, tc)
62{
63	atf_tc_set_md_var(tc, "descr","Check ilogb family");
64}
65
66ATF_TC_BODY(ilogb, tc)
67{
68
69	ATF_CHECK(ilogbf(0) == FP_ILOGB0);
70	ATF_CHECK_RAISED_INVALID;
71	ATF_CHECK(ilogb(0) == FP_ILOGB0);
72	ATF_CHECK_RAISED_INVALID;
73#ifdef __HAVE_LONG_DOUBLE
74	ATF_CHECK(ilogbl(0) == FP_ILOGB0);
75	ATF_CHECK_RAISED_INVALID;
76#endif
77
78	ATF_CHECK(ilogbf(-0) == FP_ILOGB0);
79	ATF_CHECK_RAISED_INVALID;
80	ATF_CHECK(ilogb(-0) == FP_ILOGB0);
81	ATF_CHECK_RAISED_INVALID;
82#ifdef __HAVE_LONG_DOUBLE
83	ATF_CHECK(ilogbl(-0) == FP_ILOGB0);
84	ATF_CHECK_RAISED_INVALID;
85#endif
86
87	ATF_CHECK(ilogbf(INFINITY) == INT_MAX);
88	ATF_CHECK_RAISED_INVALID;
89	ATF_CHECK(ilogb(INFINITY) == INT_MAX);
90	ATF_CHECK_RAISED_INVALID;
91#ifdef __HAVE_LONG_DOUBLE
92	ATF_CHECK(ilogbl(INFINITY) == INT_MAX);
93	ATF_CHECK_RAISED_INVALID;
94#endif
95
96	ATF_CHECK(ilogbf(-INFINITY) == INT_MAX);
97	ATF_CHECK_RAISED_INVALID;
98	ATF_CHECK(ilogb(-INFINITY) == INT_MAX);
99	ATF_CHECK_RAISED_INVALID;
100#ifdef __HAVE_LONG_DOUBLE
101	ATF_CHECK(ilogbl(-INFINITY) == INT_MAX);
102	ATF_CHECK_RAISED_INVALID;
103#endif
104
105	ATF_CHECK(ilogbf(1024) == 10);
106	ATF_CHECK_RAISED_NOTHING;
107	ATF_CHECK(ilogb(1024) == 10);
108	ATF_CHECK_RAISED_NOTHING;
109#ifdef __HAVE_LONG_DOUBLE
110	ATF_CHECK(ilogbl(1024) == 10);
111	ATF_CHECK_RAISED_NOTHING;
112#endif
113
114#ifndef __vax__
115	ATF_CHECK(ilogbf(NAN) == FP_ILOGBNAN);
116	ATF_CHECK_RAISED_INVALID;
117	ATF_CHECK(ilogb(NAN) == FP_ILOGBNAN);
118	ATF_CHECK_RAISED_INVALID;
119#ifdef __HAVE_LONG_DOUBLE
120	ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN);
121	ATF_CHECK_RAISED_INVALID;
122#endif
123#endif
124}
125
126ATF_TP_ADD_TCS(tp)
127{
128
129	ATF_TP_ADD_TC(tp, ilogb);
130
131	return atf_no_error();
132}
133