| test-logarithm.c (226378) | test-logarithm.c (251241) |
|---|---|
| 1/*- 2 * Copyright (c) 2008-2010 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 --- 15 unchanged lines hidden (view full) --- 24 * SUCH DAMAGE. 25 */ 26 27/* 28 * Tests for corner cases in log*(). 29 */ 30 31#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2008-2010 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 --- 15 unchanged lines hidden (view full) --- 24 * SUCH DAMAGE. 25 */ 26 27/* 28 * Tests for corner cases in log*(). 29 */ 30 31#include <sys/cdefs.h> |
| 32__FBSDID("$FreeBSD: head/tools/regression/lib/msun/test-logarithm.c 226378 2011-10-15 05:28:13Z das $"); | 32__FBSDID("$FreeBSD: head/tools/regression/lib/msun/test-logarithm.c 251241 2013-06-02 04:30:03Z das $"); |
| 33 34#include <assert.h> 35#include <fenv.h> 36#include <float.h> 37#include <math.h> 38#include <stdio.h> 39 40#ifdef __i386__ 41#include <ieeefp.h> 42#endif 43 | 33 34#include <assert.h> 35#include <fenv.h> 36#include <float.h> 37#include <math.h> 38#include <stdio.h> 39 40#ifdef __i386__ 41#include <ieeefp.h> 42#endif 43 |
| 44#define ALL_STD_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \ 45 FE_OVERFLOW | FE_UNDERFLOW) | 44#include "test-utils.h" |
| 46 47#pragma STDC FENV_ACCESS ON 48 49/* 50 * Test that a function returns the correct value and sets the 51 * exception flags correctly. The exceptmask specifies which 52 * exceptions we should check. We need to be lenient for several 53 * reasoons, but mainly because on some architectures it's impossible --- 4 unchanged lines hidden (view full) --- 58 * 59 * XXX The volatile here is to avoid gcc's bogus constant folding and work 60 * around the lack of support for the FENV_ACCESS pragma. 61 */ 62#define test(func, x, result, exceptmask, excepts) do { \ 63 volatile long double _d = x; \ 64 assert(feclearexcept(FE_ALL_EXCEPT) == 0); \ 65 assert(fpequal((func)(_d), (result))); \ | 45 46#pragma STDC FENV_ACCESS ON 47 48/* 49 * Test that a function returns the correct value and sets the 50 * exception flags correctly. The exceptmask specifies which 51 * exceptions we should check. We need to be lenient for several 52 * reasoons, but mainly because on some architectures it's impossible --- 4 unchanged lines hidden (view full) --- 57 * 58 * XXX The volatile here is to avoid gcc's bogus constant folding and work 59 * around the lack of support for the FENV_ACCESS pragma. 60 */ 61#define test(func, x, result, exceptmask, excepts) do { \ 62 volatile long double _d = x; \ 63 assert(feclearexcept(FE_ALL_EXCEPT) == 0); \ 64 assert(fpequal((func)(_d), (result))); \ |
| 66 assert(((func), fetestexcept(exceptmask) == (excepts))); \ | 65 assert(((void)(func), fetestexcept(exceptmask) == (excepts))); \ |
| 67} while (0) 68 69/* Test all the functions that compute log(x). */ 70#define testall0(x, result, exceptmask, excepts) do { \ 71 test(log, x, result, exceptmask, excepts); \ 72 test(logf, x, result, exceptmask, excepts); \ 73 test(log2, x, result, exceptmask, excepts); \ 74 test(log2f, x, result, exceptmask, excepts); \ 75 test(log10, x, result, exceptmask, excepts); \ 76 test(log10f, x, result, exceptmask, excepts); \ 77} while (0) 78 79/* Test all the functions that compute log(1+x). */ 80#define testall1(x, result, exceptmask, excepts) do { \ 81 test(log1p, x, result, exceptmask, excepts); \ 82 test(log1pf, x, result, exceptmask, excepts); \ 83} while (0) 84 | 66} while (0) 67 68/* Test all the functions that compute log(x). */ 69#define testall0(x, result, exceptmask, excepts) do { \ 70 test(log, x, result, exceptmask, excepts); \ 71 test(logf, x, result, exceptmask, excepts); \ 72 test(log2, x, result, exceptmask, excepts); \ 73 test(log2f, x, result, exceptmask, excepts); \ 74 test(log10, x, result, exceptmask, excepts); \ 75 test(log10f, x, result, exceptmask, excepts); \ 76} while (0) 77 78/* Test all the functions that compute log(1+x). */ 79#define testall1(x, result, exceptmask, excepts) do { \ 80 test(log1p, x, result, exceptmask, excepts); \ 81 test(log1pf, x, result, exceptmask, excepts); \ 82} while (0) 83 |
| 85/* 86 * Determine whether x and y are equal, with two special rules: 87 * +0.0 != -0.0 88 * NaN == NaN 89 */ 90int 91fpequal(long double x, long double y) 92{ 93 return ((x == y && !signbit(x) == !signbit(y)) || isnan(x) && isnan(y)); 94} 95 | |
| 96void 97run_generic_tests(void) 98{ 99 100 /* log(1) == 0, no exceptions raised */ 101 testall0(1.0, 0.0, ALL_STD_EXCEPT, 0); 102 testall1(0.0, 0.0, ALL_STD_EXCEPT, 0); 103 testall1(-0.0, -0.0, ALL_STD_EXCEPT, 0); --- 82 unchanged lines hidden --- | 84void 85run_generic_tests(void) 86{ 87 88 /* log(1) == 0, no exceptions raised */ 89 testall0(1.0, 0.0, ALL_STD_EXCEPT, 0); 90 testall1(0.0, 0.0, ALL_STD_EXCEPT, 0); 91 testall1(-0.0, -0.0, ALL_STD_EXCEPT, 0); --- 82 unchanged lines hidden --- |