1/* $OpenBSD: lround_test.c,v 1.2 2021/12/13 18:04:28 deraadt 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 <fenv.h> 35#include <limits.h> 36#include <math.h> 37#include <stdio.h> 38 39#include "test-utils.h" 40 41#define IGNORE 0x12345 42 43#define test(func, x, result, excepts) do { \ 44 ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT)); \ 45 long long _r = (func)(x); \ 46 CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT, "for %s(%s)", \ 47 #func, #x); \ 48 if ((excepts & FE_INVALID) != 0) { \ 49 ATF_REQUIRE_EQ(result, IGNORE); \ 50 ATF_CHECK_EQ_MSG(FE_INVALID, fetestexcept(FE_INVALID), \ 51 "FE_INVALID not set correctly for %s(%s)", #func, #x); \ 52 } else { \ 53 ATF_REQUIRE_MSG(result != IGNORE, "Expected can't be IGNORE!"); \ 54 ATF_REQUIRE_EQ(result, (__STRING(func(_d)), _r)); \ 55 } \ 56} while (0) 57 58#define testall(x, result, excepts) do { \ 59 test(lround, x, result, excepts); \ 60 test(lroundf, x, result, excepts); \ 61 test(llround, x, result, excepts); \ 62 test(llroundf, x, result, excepts); \ 63} while (0) 64 65#pragma STDC FENV_ACCESS ON 66 67ATF_TC_WITHOUT_HEAD(main); 68ATF_TC_BODY(main, tc) 69{ 70 testall(0.0, 0, 0); 71 testall(0.25, 0, FE_INEXACT); 72 testall(0.5, 1, FE_INEXACT); 73 testall(-0.5, -1, FE_INEXACT); 74 testall(1.0, 1, 0); 75 testall(0x12345000p0, 0x12345000, 0); 76 testall(0x1234.fp0, 0x1235, FE_INEXACT); 77 testall(INFINITY, IGNORE, FE_INVALID); 78 testall(NAN, IGNORE, FE_INVALID); 79 80#if (LONG_MAX == 0x7fffffffl) 81 test(lround, 0x7fffffff.8p0, IGNORE, FE_INVALID); 82 test(lround, -0x80000000.8p0, IGNORE, FE_INVALID); 83 test(lround, 0x80000000.0p0, IGNORE, FE_INVALID); 84 test(lround, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT); 85 test(lround, -0x80000000.4p0, -0x80000000l, FE_INEXACT); 86 test(lroundf, 0x80000000.0p0f, IGNORE, FE_INVALID); 87 test(lroundf, 0x7fffff80.0p0f, 0x7fffff80l, 0); 88#elif (LONG_MAX == 0x7fffffffffffffffll) 89 test(lround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 90 test(lroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 91 test(lround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0); 92 test(lroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0); 93 test(lround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 94 test(lroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 95 test(lround, -0x8000000000000000.0p0, (long)-0x8000000000000000l, 0); 96 test(lroundf, -0x8000000000000000.0p0f, (long)-0x8000000000000000l, 0); 97#else 98#error "Unsupported long size" 99#endif 100 101#if (LLONG_MAX == 0x7fffffffffffffffLL) 102 test(llround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); 103 test(llroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); 104 test(llround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0); 105 test(llroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0); 106 test(llround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); 107 test(llroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); 108 test(llround, -0x8000000000000000.0p0, (long long)-0x8000000000000000ll, 0); 109 test(llroundf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ll, 0); 110#else 111#error "Unsupported long long size" 112#endif 113} 114 115ATF_TP_ADD_TCS(tp) 116{ 117 ATF_TP_ADD_TC(tp, main); 118 119 return (atf_no_error()); 120} 121