1*57718be8SEnji Cooper /* $NetBSD: t_modf.c,v 1.1 2014/06/16 12:54:43 joerg Exp $ */
2*57718be8SEnji Cooper
3*57718be8SEnji Cooper /*-
4*57718be8SEnji Cooper * Copyright (c) 2014 The NetBSD Foundation, Inc.
5*57718be8SEnji Cooper * All rights reserved.
6*57718be8SEnji Cooper *
7*57718be8SEnji Cooper * This code is derived from software contributed to The NetBSD Foundation
8*57718be8SEnji Cooper * by Joerg Sonnenberger.
9*57718be8SEnji Cooper *
10*57718be8SEnji Cooper * Redistribution and use in source and binary forms, with or without
11*57718be8SEnji Cooper * modification, are permitted provided that the following conditions
12*57718be8SEnji Cooper * are met:
13*57718be8SEnji Cooper * 1. Redistributions of source code must retain the above copyright
14*57718be8SEnji Cooper * notice, this list of conditions and the following disclaimer.
15*57718be8SEnji Cooper * 2. Redistributions in binary form must reproduce the above copyright
16*57718be8SEnji Cooper * notice, this list of conditions and the following disclaimer in the
17*57718be8SEnji Cooper * documentation and/or other materials provided with the distribution.
18*57718be8SEnji Cooper *
19*57718be8SEnji Cooper * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*57718be8SEnji Cooper * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*57718be8SEnji Cooper * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*57718be8SEnji Cooper * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*57718be8SEnji Cooper * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*57718be8SEnji Cooper * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*57718be8SEnji Cooper * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*57718be8SEnji Cooper * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*57718be8SEnji Cooper * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*57718be8SEnji Cooper * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*57718be8SEnji Cooper * POSSIBILITY OF SUCH DAMAGE.
30*57718be8SEnji Cooper */
31*57718be8SEnji Cooper
32*57718be8SEnji Cooper #include <atf-c.h>
33*57718be8SEnji Cooper #include <float.h>
34*57718be8SEnji Cooper #include <math.h>
35*57718be8SEnji Cooper
36*57718be8SEnji Cooper ATF_TC(modf);
ATF_TC_HEAD(modf,tc)37*57718be8SEnji Cooper ATF_TC_HEAD(modf, tc)
38*57718be8SEnji Cooper {
39*57718be8SEnji Cooper atf_tc_set_md_var(tc, "descr","Check modf family");
40*57718be8SEnji Cooper }
41*57718be8SEnji Cooper
ATF_TC_BODY(modf,tc)42*57718be8SEnji Cooper ATF_TC_BODY(modf, tc)
43*57718be8SEnji Cooper {
44*57718be8SEnji Cooper float basef;
45*57718be8SEnji Cooper double base;
46*57718be8SEnji Cooper long double basel;
47*57718be8SEnji Cooper ATF_CHECK(modff(1.0, &basef) == 0.0);
48*57718be8SEnji Cooper ATF_CHECK(basef == 1.0);
49*57718be8SEnji Cooper ATF_CHECK(modf(1.0, &base) == 0.0);
50*57718be8SEnji Cooper ATF_CHECK(base == 1.0);
51*57718be8SEnji Cooper ATF_CHECK(modfl(1.0, &basel) == 0.0);
52*57718be8SEnji Cooper ATF_CHECK(basel == 1.0);
53*57718be8SEnji Cooper
54*57718be8SEnji Cooper ATF_CHECK(modff(-1 - FLT_EPSILON, &basef) == -FLT_EPSILON);
55*57718be8SEnji Cooper ATF_CHECK(basef == -1.0);
56*57718be8SEnji Cooper ATF_CHECK(modf(-1 - DBL_EPSILON, &base) == -DBL_EPSILON);
57*57718be8SEnji Cooper ATF_CHECK(base == -1.0);
58*57718be8SEnji Cooper ATF_CHECK(modfl(-1 - LDBL_EPSILON, &basel) == -LDBL_EPSILON);
59*57718be8SEnji Cooper ATF_CHECK(basel == -1.0);
60*57718be8SEnji Cooper }
61*57718be8SEnji Cooper
ATF_TP_ADD_TCS(tp)62*57718be8SEnji Cooper ATF_TP_ADD_TCS(tp)
63*57718be8SEnji Cooper {
64*57718be8SEnji Cooper
65*57718be8SEnji Cooper ATF_TP_ADD_TC(tp, modf);
66*57718be8SEnji Cooper
67*57718be8SEnji Cooper return atf_no_error();
68*57718be8SEnji Cooper }
69