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); 37 ATF_TC_HEAD(modf, tc) 38 { 39 atf_tc_set_md_var(tc, "descr","Check modf family"); 40 } 41 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 62 ATF_TP_ADD_TCS(tp) 63 { 64 65 ATF_TP_ADD_TC(tp, modf); 66 67 return atf_no_error(); 68 } 69