| test-trig.c (216222) | test-trig.c (251241) |
|---|---|
| 1/*- 2 * Copyright (c) 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 --- 20 unchanged lines hidden (view full) --- 29 * are included as well, but these are very basic sanity checks, not 30 * intended to be comprehensive. 31 * 32 * The program for generating representable numbers near multiples of pi is 33 * available at http://www.cs.berkeley.edu/~wkahan/testpi/ . 34 */ 35 36#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 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 --- 20 unchanged lines hidden (view full) --- 29 * are included as well, but these are very basic sanity checks, not 30 * intended to be comprehensive. 31 * 32 * The program for generating representable numbers near multiples of pi is 33 * available at http://www.cs.berkeley.edu/~wkahan/testpi/ . 34 */ 35 36#include <sys/cdefs.h> |
| 37__FBSDID("$FreeBSD: head/tools/regression/lib/msun/test-trig.c 216222 2010-12-06 00:02:49Z das $"); | 37__FBSDID("$FreeBSD: head/tools/regression/lib/msun/test-trig.c 251241 2013-06-02 04:30:03Z das $"); |
| 38 39#include <assert.h> 40#include <fenv.h> 41#include <float.h> 42#include <math.h> 43#include <stdio.h> 44 | 38 39#include <assert.h> 40#include <fenv.h> 41#include <float.h> 42#include <math.h> 43#include <stdio.h> 44 |
| 45#define ALL_STD_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \ 46 FE_OVERFLOW | FE_UNDERFLOW) | 45#include "test-utils.h" |
| 47 48#define LEN(a) (sizeof(a) / sizeof((a)[0])) 49 50#pragma STDC FENV_ACCESS ON 51 52/* 53 * Test that a function returns the correct value and sets the 54 * exception flags correctly. The exceptmask specifies which --- 6 unchanged lines hidden (view full) --- 61 * 62 * XXX The volatile here is to avoid gcc's bogus constant folding and work 63 * around the lack of support for the FENV_ACCESS pragma. 64 */ 65#define test(func, x, result, exceptmask, excepts) do { \ 66 volatile long double _d = x; \ 67 assert(feclearexcept(FE_ALL_EXCEPT) == 0); \ 68 assert(fpequal((func)(_d), (result))); \ | 46 47#define LEN(a) (sizeof(a) / sizeof((a)[0])) 48 49#pragma STDC FENV_ACCESS ON 50 51/* 52 * Test that a function returns the correct value and sets the 53 * exception flags correctly. The exceptmask specifies which --- 6 unchanged lines hidden (view full) --- 60 * 61 * XXX The volatile here is to avoid gcc's bogus constant folding and work 62 * around the lack of support for the FENV_ACCESS pragma. 63 */ 64#define test(func, x, result, exceptmask, excepts) do { \ 65 volatile long double _d = x; \ 66 assert(feclearexcept(FE_ALL_EXCEPT) == 0); \ 67 assert(fpequal((func)(_d), (result))); \ |
| 69 assert(((func), fetestexcept(exceptmask) == (excepts))); \ | 68 assert(((void)(func), fetestexcept(exceptmask) == (excepts))); \ |
| 70} while (0) 71 72#define testall(prefix, x, result, exceptmask, excepts) do { \ 73 test(prefix, x, (double)result, exceptmask, excepts); \ 74 test(prefix##f, x, (float)result, exceptmask, excepts); \ 75 test(prefix##l, x, result, exceptmask, excepts); \ 76} while (0) 77 78#define testdf(prefix, x, result, exceptmask, excepts) do { \ 79 test(prefix, x, (double)result, exceptmask, excepts); \ 80 test(prefix##f, x, (float)result, exceptmask, excepts); \ 81} while (0) 82 | 69} while (0) 70 71#define testall(prefix, x, result, exceptmask, excepts) do { \ 72 test(prefix, x, (double)result, exceptmask, excepts); \ 73 test(prefix##f, x, (float)result, exceptmask, excepts); \ 74 test(prefix##l, x, result, exceptmask, excepts); \ 75} while (0) 76 77#define testdf(prefix, x, result, exceptmask, excepts) do { \ 78 test(prefix, x, (double)result, exceptmask, excepts); \ 79 test(prefix##f, x, (float)result, exceptmask, excepts); \ 80} while (0) 81 |
| 83 84 | |
| 85/* | 82/* |
| 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 96/* | |
| 97 * Test special cases in sin(), cos(), and tan(). 98 */ 99static void 100run_special_tests(void) 101{ 102 103 /* Values at 0 should be exact. */ 104 testall(tan, 0.0, 0.0, ALL_STD_EXCEPT, 0); --- 190 unchanged lines hidden --- | 83 * Test special cases in sin(), cos(), and tan(). 84 */ 85static void 86run_special_tests(void) 87{ 88 89 /* Values at 0 should be exact. */ 90 testall(tan, 0.0, 0.0, ALL_STD_EXCEPT, 0); --- 190 unchanged lines hidden --- |