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