1 /* $NetBSD: t_modf.c,v 1.1 2014/06/16 12:54:43 joerg Exp $ */
2
3 /*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Joerg Sonnenberger.
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
32 #include <atf-c.h>
33 #include <float.h>
34 #include <math.h>
35
36 ATF_TC(modf);
ATF_TC_HEAD(modf,tc)37 ATF_TC_HEAD(modf, tc)
38 {
39 atf_tc_set_md_var(tc, "descr","Check modf family");
40 }
41
ATF_TC_BODY(modf,tc)42 ATF_TC_BODY(modf, tc)
43 {
44 float basef;
45 double base;
46 long double basel;
47 ATF_CHECK(modff(1.0, &basef) == 0.0);
48 ATF_CHECK(basef == 1.0);
49 ATF_CHECK(modf(1.0, &base) == 0.0);
50 ATF_CHECK(base == 1.0);
51 ATF_CHECK(modfl(1.0, &basel) == 0.0);
52 ATF_CHECK(basel == 1.0);
53
54 ATF_CHECK(modff(-1 - FLT_EPSILON, &basef) == -FLT_EPSILON);
55 ATF_CHECK(basef == -1.0);
56 ATF_CHECK(modf(-1 - DBL_EPSILON, &base) == -DBL_EPSILON);
57 ATF_CHECK(base == -1.0);
58 ATF_CHECK(modfl(-1 - LDBL_EPSILON, &basel) == -LDBL_EPSILON);
59 ATF_CHECK(basel == -1.0);
60 }
61
ATF_TP_ADD_TCS(tp)62 ATF_TP_ADD_TCS(tp)
63 {
64
65 ATF_TP_ADD_TC(tp, modf);
66
67 return atf_no_error();
68 }
69