1 /* $OpenBSD: lround_test.c,v 1.1 2021/10/22 18:00:22 mbuhl Exp $ */ 2 /*- 3 * Copyright (c) 2005 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 #include "macros.h" 29 30 /* 31 * Test for lround(), lroundf(), llround(), and llroundf(). 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 #include <fenv.h> 38 #include <limits.h> 39 #include <math.h> 40 #include <stdio.h> 41 42 #include "test-utils.h" 43 44 #define IGNORE 0x12345 45 46 #define test(func, x, result, excepts) do { \ 47 ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT)); \ 48 long long _r = (func)(x); \ 49 CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT, "for %s(%s)", \ 50 #func, #x); \ 51 if ((excepts & FE_INVALID) != 0) { \ 52 ATF_REQUIRE_EQ(result, IGNORE); \ 53 ATF_CHECK_EQ_MSG(FE_INVALID, fetestexcept(FE_INVALID), \ 54 "FE_INVALID not set correctly for %s(%s)", #func, #x); \ 55 } else { \ 56 ATF_REQUIRE_MSG(result != IGNORE, "Expected can't be IGNORE!"); \ 57 ATF_REQUIRE_EQ(result, (__STRING(func(_d)), _r)); \ 58 } \ 59 } while (0) 60 61 #define testall(x, result, excepts) do { \ 62 test(lround, x, result, excepts); \ 63 test(lroundf, x, result, excepts); \ 64 test(llround, x, result, excepts); \ 65 test(llroundf, x, result, excepts); \ 66 } while (0) 67 68 #pragma STDC FENV_ACCESS ON 69 70 ATF_TC_WITHOUT_HEAD(main); 71 ATF_TC_BODY(main, tc) 72 { 73 testall(0.0, 0, 0); 74 testall(0.25, 0, FE_INEXACT); 75 testall(0.5, 1, FE_INEXACT); 76 testall(-0.5, -1, 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 test(lround, 0x7fffffff.8p0, IGNORE, FE_INVALID); 85 test(lround, -0x80000000.8p0, IGNORE, FE_INVALID); 86 test(lround, 0x80000000.0p0, IGNORE, FE_INVALID); 87 test(lround, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT); 88 test(lround, -0x80000000.4p0, -0x80000000l, FE_INEXACT); 89 test(lroundf, 0x80000000.0p0f, IGNORE, FE_INVALID); 90 test(lroundf, 0x7fffff80.0p0f, 0x7fffff80l, 0); 91 #elif (LONG_MAX == 0x7fffffffffffffffll) 92 test(lround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 93 test(lroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 94 test(lround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0); 95 test(lroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0); 96 test(lround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 97 test(lroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 98 test(lround, -0x8000000000000000.0p0, (long)-0x8000000000000000l, 0); 99 test(lroundf, -0x8000000000000000.0p0f, (long)-0x8000000000000000l, 0); 100 #else 101 #error "Unsupported long size" 102 #endif 103 104 #if (LLONG_MAX == 0x7fffffffffffffffLL) 105 test(llround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 106 test(llroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 107 test(llround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0); 108 test(llroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0); 109 test(llround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 110 test(llroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 111 test(llround, -0x8000000000000000.0p0, (long long)-0x8000000000000000ll, 0); 112 test(llroundf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ll, 0); 113 #else 114 #error "Unsupported long long size" 115 #endif 116 } 117 118 ATF_TP_ADD_TCS(tp) 119 { 120 ATF_TP_ADD_TC(tp, main); 121 122 return (atf_no_error()); 123 } 124