1 /* $NetBSD: t_ilogb.c,v 1.9 2018/06/14 21:57:25 maya 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 1.9 2018/06/14 21:57:25 maya 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) != 0, \ 48 "r & FE_INVALID == 0 (r=%#x, FE_INVALID=%#x)\n", \ 49 r, FE_INVALID); \ 50 (void)feclearexcept(FE_ALL_EXCEPT); \ 51 } while (/*CONSTCOND*/0) 52 53 # define ATF_CHECK_RAISED_NOTHING do { \ 54 int r = fetestexcept(FE_ALL_EXCEPT); \ 55 ATF_CHECK_MSG(r == 0, "r=%#x != 0\n", r); \ 56 (void)feclearexcept(FE_ALL_EXCEPT); \ 57 } while (/*CONSTCOND*/0) 58 #endif 59 60 ATF_TC(ilogb); 61 ATF_TC_HEAD(ilogb, tc) 62 { 63 atf_tc_set_md_var(tc, "descr","Check ilogb family"); 64 } 65 66 ATF_TC_BODY(ilogb, tc) 67 { 68 69 ATF_CHECK(ilogbf(0) == FP_ILOGB0); 70 ATF_CHECK_RAISED_INVALID; 71 ATF_CHECK(ilogb(0) == FP_ILOGB0); 72 ATF_CHECK_RAISED_INVALID; 73 #ifdef __HAVE_LONG_DOUBLE 74 ATF_CHECK(ilogbl(0) == FP_ILOGB0); 75 ATF_CHECK_RAISED_INVALID; 76 #endif 77 78 ATF_CHECK(ilogbf(-0) == FP_ILOGB0); 79 ATF_CHECK_RAISED_INVALID; 80 ATF_CHECK(ilogb(-0) == FP_ILOGB0); 81 ATF_CHECK_RAISED_INVALID; 82 #ifdef __HAVE_LONG_DOUBLE 83 ATF_CHECK(ilogbl(-0) == FP_ILOGB0); 84 ATF_CHECK_RAISED_INVALID; 85 #endif 86 87 ATF_CHECK(ilogbf(INFINITY) == INT_MAX); 88 ATF_CHECK_RAISED_INVALID; 89 ATF_CHECK(ilogb(INFINITY) == INT_MAX); 90 ATF_CHECK_RAISED_INVALID; 91 #ifdef __HAVE_LONG_DOUBLE 92 ATF_CHECK(ilogbl(INFINITY) == INT_MAX); 93 ATF_CHECK_RAISED_INVALID; 94 #endif 95 96 ATF_CHECK(ilogbf(-INFINITY) == INT_MAX); 97 ATF_CHECK_RAISED_INVALID; 98 ATF_CHECK(ilogb(-INFINITY) == INT_MAX); 99 ATF_CHECK_RAISED_INVALID; 100 #ifdef __HAVE_LONG_DOUBLE 101 ATF_CHECK(ilogbl(-INFINITY) == INT_MAX); 102 ATF_CHECK_RAISED_INVALID; 103 #endif 104 105 ATF_CHECK(ilogbf(1024) == 10); 106 ATF_CHECK_RAISED_NOTHING; 107 ATF_CHECK(ilogb(1024) == 10); 108 ATF_CHECK_RAISED_NOTHING; 109 #ifdef __HAVE_LONG_DOUBLE 110 ATF_CHECK(ilogbl(1024) == 10); 111 ATF_CHECK_RAISED_NOTHING; 112 #endif 113 114 #ifndef __vax__ 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 #ifdef __HAVE_LONG_DOUBLE 120 ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN); 121 ATF_CHECK_RAISED_INVALID; 122 #endif 123 #endif 124 } 125 126 ATF_TP_ADD_TCS(tp) 127 { 128 129 ATF_TP_ADD_TC(tp, ilogb); 130 131 return atf_no_error(); 132 } 133