t_ilogb.c revision 314817 
1/* $NetBSD: t_ilogb.c,v 1.7 2017/01/13 19:23:40 christos 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 1.7 2017/01/13 19:23:40 christos 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, "r=%#x != %#x\n", r, FE_INVALID); \
48	(void)feclearexcept(FE_ALL_EXCEPT); \
49} while (/*CONSTCOND*/0)
50
51# define ATF_CHECK_RAISED_NOTHING do { \
52	int r = fetestexcept(FE_ALL_EXCEPT); \
53	ATF_CHECK_MSG(r == 0, "r=%#x != 0\n", r); \
54	(void)feclearexcept(FE_ALL_EXCEPT); \
55} while (/*CONSTCOND*/0)
56#endif
57
58ATF_TC(ilogb);
59ATF_TC_HEAD(ilogb, tc)
60{
61	atf_tc_set_md_var(tc, "descr","Check ilogb family");
62}
63
64ATF_TC_BODY(ilogb, tc)
65{
66
67	ATF_CHECK(ilogbf(0) == FP_ILOGB0);
68	ATF_CHECK_RAISED_INVALID;
69	ATF_CHECK(ilogb(0) == FP_ILOGB0);
70	ATF_CHECK_RAISED_INVALID;
71#ifdef __HAVE_LONG_DOUBLE
72	ATF_CHECK(ilogbl(0) == FP_ILOGB0);
73	ATF_CHECK_RAISED_INVALID;
74#endif
75
76	ATF_CHECK(ilogbf(-0) == FP_ILOGB0);
77	ATF_CHECK_RAISED_INVALID;
78	ATF_CHECK(ilogb(-0) == FP_ILOGB0);
79	ATF_CHECK_RAISED_INVALID;
80#ifdef __HAVE_LONG_DOUBLE
81	ATF_CHECK(ilogbl(-0) == FP_ILOGB0);
82	ATF_CHECK_RAISED_INVALID;
83#endif
84
85	ATF_CHECK(ilogbf(INFINITY) == INT_MAX);
86	ATF_CHECK_RAISED_INVALID;
87	ATF_CHECK(ilogb(INFINITY) == INT_MAX);
88	ATF_CHECK_RAISED_INVALID;
89#ifdef __HAVE_LONG_DOUBLE
90	ATF_CHECK(ilogbl(INFINITY) == INT_MAX);
91	ATF_CHECK_RAISED_INVALID;
92#endif
93
94	ATF_CHECK(ilogbf(-INFINITY) == INT_MAX);
95	ATF_CHECK_RAISED_INVALID;
96	ATF_CHECK(ilogb(-INFINITY) == INT_MAX);
97	ATF_CHECK_RAISED_INVALID;
98#ifdef __HAVE_LONG_DOUBLE
99	ATF_CHECK(ilogbl(-INFINITY) == INT_MAX);
100	ATF_CHECK_RAISED_INVALID;
101#endif
102
103	ATF_CHECK(ilogbf(1024) == 10);
104	ATF_CHECK_RAISED_NOTHING;
105	ATF_CHECK(ilogb(1024) == 10);
106	ATF_CHECK_RAISED_NOTHING;
107#ifdef __HAVE_LONG_DOUBLE
108	ATF_CHECK(ilogbl(1024) == 10);
109	ATF_CHECK_RAISED_NOTHING;
110#endif
111
112#ifndef __vax__
113	ATF_CHECK(ilogbf(NAN) == FP_ILOGBNAN);
114	ATF_CHECK_RAISED_INVALID;
115	ATF_CHECK(ilogb(NAN) == FP_ILOGBNAN);
116	ATF_CHECK_RAISED_INVALID;
117#ifdef __HAVE_LONG_DOUBLE
118	ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN);
119	ATF_CHECK_RAISED_INVALID;
120#endif
121#endif
122}
123
124ATF_TP_ADD_TCS(tp)
125{
126
127	ATF_TP_ADD_TC(tp, ilogb);
128
129	return atf_no_error();
130}
131