1 /* $NetBSD: t_ilogb.c,v 1.11 2024/05/14 15:31:42 riastradh 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 32 #include <sys/cdefs.h> 33 __RCSID("$NetBSD: t_ilogb.c,v 1.11 2024/05/14 15:31:42 riastradh Exp $"); 34 35 #include <atf-c.h> 36 #include <fenv.h> 37 #include <limits.h> 38 #include <math.h> 39 40 #ifndef __HAVE_FENV 41 42 # define ATF_CLEAR_EXCEPTS __nothing 43 # define ATF_CHECK_RAISED_INVALID __nothing 44 # define ATF_CHECK_RAISED_NOTHING __nothing 45 46 #else /* __HAVE_FENV */ 47 48 # define ATF_CLEAR_EXCEPTS (void)feclearexcept(FE_ALL_EXCEPT); 49 50 # define ATF_CHECK_RAISED_INVALID do { \ 51 int r = fetestexcept(FE_ALL_EXCEPT); \ 52 ATF_CHECK_MSG((r & FE_INVALID) != 0, \ 53 "r & FE_INVALID == 0 (r=%#x, FE_INVALID=%#x)", \ 54 r, FE_INVALID); \ 55 (void)feclearexcept(FE_ALL_EXCEPT); \ 56 } while (/*CONSTCOND*/0) 57 58 # define ATF_CHECK_RAISED_NOTHING do { \ 59 int r = fetestexcept(FE_ALL_EXCEPT); \ 60 ATF_CHECK_MSG(r == 0, "r=%#x != 0", r); \ 61 (void)feclearexcept(FE_ALL_EXCEPT); \ 62 } while (/*CONSTCOND*/0) 63 64 #endif /* __HAVE_FENV */ 65 66 ATF_TC(ilogb); 67 ATF_TC_HEAD(ilogb, tc) 68 { 69 atf_tc_set_md_var(tc, "descr", "Check ilogb family"); 70 } 71 72 ATF_TC_BODY(ilogb, tc) 73 { 74 75 ATF_CLEAR_EXCEPTS; 76 77 ATF_CHECK(ilogbf(0) == FP_ILOGB0); 78 ATF_CHECK_RAISED_INVALID; 79 ATF_CHECK(ilogb(0) == FP_ILOGB0); 80 ATF_CHECK_RAISED_INVALID; 81 ATF_CHECK(ilogbl(0) == FP_ILOGB0); 82 ATF_CHECK_RAISED_INVALID; 83 84 ATF_CHECK(ilogbf(-0.) == FP_ILOGB0); 85 ATF_CHECK_RAISED_INVALID; 86 ATF_CHECK(ilogb(-0.) == FP_ILOGB0); 87 ATF_CHECK_RAISED_INVALID; 88 ATF_CHECK(ilogbl(-0.) == FP_ILOGB0); 89 ATF_CHECK_RAISED_INVALID; 90 91 if (isinf(INFINITY)) { 92 ATF_CHECK(ilogbf(INFINITY) == INT_MAX); 93 ATF_CHECK_RAISED_INVALID; 94 ATF_CHECK(ilogb(INFINITY) == INT_MAX); 95 ATF_CHECK_RAISED_INVALID; 96 ATF_CHECK(ilogbl(INFINITY) == INT_MAX); 97 ATF_CHECK_RAISED_INVALID; 98 99 ATF_CHECK(ilogbf(-INFINITY) == INT_MAX); 100 ATF_CHECK_RAISED_INVALID; 101 ATF_CHECK(ilogb(-INFINITY) == INT_MAX); 102 ATF_CHECK_RAISED_INVALID; 103 ATF_CHECK(ilogbl(-INFINITY) == INT_MAX); 104 ATF_CHECK_RAISED_INVALID; 105 } 106 107 ATF_CHECK(ilogbf(1024) == 10); 108 ATF_CHECK_RAISED_NOTHING; 109 ATF_CHECK(ilogb(1024) == 10); 110 ATF_CHECK_RAISED_NOTHING; 111 ATF_CHECK(ilogbl(1024) == 10); 112 ATF_CHECK_RAISED_NOTHING; 113 114 #ifdef NAN 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 ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN); 120 ATF_CHECK_RAISED_INVALID; 121 #endif 122 } 123 124 ATF_TP_ADD_TCS(tp) 125 { 126 127 ATF_TP_ADD_TC(tp, ilogb); 128 129 return atf_no_error(); 130 } 131