1 /* $OpenBSD: lrint_test.c,v 1.4 2021/10/22 18:00:22 mbuhl Exp $ */ 2 /*- 3 * Copyright (c) 2005-2008 David Schultz <das@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Test for lrint(), lrintf(), llrint(), and llrintf(). 30 */ 31 32 #include <sys/cdefs.h> 33 /* $FreeBSD: head/lib/msun/tests/lrint_test.c 314650 2017-03-04 10:07:46Z ngie $ */ 34 35 #include <fenv.h> 36 #include <limits.h> 37 #include <math.h> 38 #include <stdio.h> 39 40 #include "test-utils.h" 41 42 #define test(func, x, result, excepts) do { \ 43 ATF_CHECK(feclearexcept(FE_ALL_EXCEPT) == 0); \ 44 long long _r = (func)(x); \ 45 ATF_CHECK_MSG(_r == (result) || fetestexcept(FE_INVALID), \ 46 #func "(%Lg) returned %lld, expected %lld", (long double)x, _r, \ 47 (long long)(result)); \ 48 CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT & ALL_STD_EXCEPT, \ 49 "for %s(%s)", #func, #x); \ 50 } while (0) 51 52 #define testall(x, result, excepts) do { \ 53 test(lrint, x, result, excepts); \ 54 test(lrintf, x, result, excepts); \ 55 test(lrintl, x, result, excepts); \ 56 test(llrint, x, result, excepts); \ 57 test(llrintf, x, result, excepts); \ 58 test(llrintl, x, result, excepts); \ 59 } while (0) 60 61 #define IGNORE 0 62 63 #pragma STDC FENV_ACCESS ON 64 65 static void 66 run_tests(void) 67 { 68 ATF_REQUIRE_EQ(0, fesetround(FE_DOWNWARD)); 69 testall(0.75, 0, FE_INEXACT); 70 testall(-0.5, -1, FE_INEXACT); 71 72 ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST)); 73 testall(0.0, 0, 0); 74 testall(0.25, 0, FE_INEXACT); 75 testall(0.5, 0, FE_INEXACT); 76 testall(-2.5, -2, FE_INEXACT); 77 testall(1.0, 1, 0); 78 testall(0x12345000p0, 0x12345000, 0); 79 testall(0x1234.fp0, 0x1235, FE_INEXACT); 80 testall(INFINITY, IGNORE, FE_INVALID); 81 testall(NAN, IGNORE, FE_INVALID); 82 83 #if (LONG_MAX == 0x7fffffffl) 84 ATF_REQUIRE_EQ(0, fesetround(FE_UPWARD)); 85 test(lrint, 0x7fffffff.8p0, IGNORE, FE_INVALID); 86 test(lrint, -0x80000000.4p0, (long)-0x80000000l, FE_INEXACT); 87 88 ATF_REQUIRE_EQ(0, fesetround(FE_DOWNWARD)); 89 test(lrint, -0x80000000.8p0, IGNORE, FE_INVALID); 90 test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID); 91 test(lrint, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT); 92 test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID); 93 test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0); 94 95 ATF_REQUIRE_EQ(0, fesetround(FE_TOWARDZERO)); 96 test(lrint, 0x7fffffff.8p0, 0x7fffffffl, FE_INEXACT); 97 test(lrint, -0x80000000.8p0, -0x80000000l, FE_INEXACT); 98 test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID); 99 test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID); 100 test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0); 101 #elif (LONG_MAX == 0x7fffffffffffffffll) 102 ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST)); 103 test(lrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 104 test(lrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 105 test(lrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0); 106 test(lrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0); 107 test(lrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 108 test(lrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 109 test(lrint, -0x8000000000000000.0p0, (long long)-0x8000000000000000ul, 0); 110 test(lrintf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ul, 0); 111 #else 112 #error "Unsupported long size" 113 #endif 114 115 #if (LLONG_MAX == 0x7fffffffffffffffLL) 116 ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST)); 117 test(llrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 118 test(llrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 119 test(llrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0); 120 test(llrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0); 121 test(llrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 122 test(llrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 123 test(llrint, -0x8000000000000000.0p0, (long long)-0x8000000000000000ull, 0); 124 test(llrintf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ull, 0); 125 #else 126 #error "Unsupported long long size" 127 #endif 128 } 129 130 ATF_TC_WITHOUT_HEAD(lrint); 131 ATF_TC_BODY(lrint, tc) 132 { 133 run_tests(); 134 #ifndef __OpenBSD__ 135 #ifdef __i386__ 136 fpsetprec(FP_PE); 137 run_tests(); 138 #endif 139 #endif 140 } 141 142 ATF_TP_ADD_TCS(tp) 143 { 144 ATF_TP_ADD_TC(tp, lrint); 145 return (atf_no_error()); 146 } 147