1 2/* 3 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. Oracle designates this 9 * particular file as subject to the "Classpath" exception as provided 10 * by Oracle in the LICENSE file that accompanied this code. 11 * 12 * This code is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * version 2 for more details (a copy is included in the LICENSE file that 16 * accompanied this code). 17 * 18 * You should have received a copy of the GNU General Public License version 19 * 2 along with this work; if not, write to the Free Software Foundation, 20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 23 * or visit www.oracle.com if you need additional information or have any 24 * questions. 25 */ 26 27#ifdef _ALLBSD_SOURCE 28#include <machine/endian.h> 29#elif __linux__ 30#define __USE_BSD 1 31#include <endian.h> 32#endif 33//#include "jfdlibm.h" 34 35#ifdef __NEWVALID /* special setup for Sun test regime */ 36#if defined(i386) || defined(i486) || \ 37 defined(intel) || defined(x86) || defined(arm) || \ 38 defined(i86pc) || defined(_M_IA64) || defined(ia64) 39#define _LITTLE_ENDIAN 40#endif 41#endif 42 43#ifdef _LITTLE_ENDIAN 44#define __HI(x) *(1+(int*)&x) 45#define __LO(x) *(int*)&x 46#define __HIp(x) *(1+(int*)x) 47#define __LOp(x) *(int*)x 48#else 49#define __HI(x) *(int*)&x 50#define __LO(x) *(1+(int*)&x) 51#define __HIp(x) *(int*)x 52#define __LOp(x) *(1+(int*)x) 53#endif 54 55#ifndef __P 56#ifdef __STDC__ 57#define __P(p) p 58#else 59#define __P(p) () 60#endif 61#endif 62 63/* 64 * ANSI/POSIX 65 */ 66 67extern int signgam; 68 69#define MAXFLOAT ((float)3.40282346638528860e+38) 70 71enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix}; 72 73#define _LIB_VERSION_TYPE enum fdversion 74#define _LIB_VERSION _fdlib_version 75 76/* if global variable _LIB_VERSION is not desirable, one may 77 * change the following to be a constant by: 78 * #define _LIB_VERSION_TYPE const enum version 79 * In that case, after one initializes the value _LIB_VERSION (see 80 * s_lib_version.c) during compile time, it cannot be modified 81 * in the middle of a program 82 */ 83extern _LIB_VERSION_TYPE _LIB_VERSION; 84 85#define _IEEE_ fdlibm_ieee 86#define _SVID_ fdlibm_svid 87#define _XOPEN_ fdlibm_xopen 88#define _POSIX_ fdlibm_posix 89 90struct exception { 91 int type; 92 char *name; 93 double arg1; 94 double arg2; 95 double retval; 96}; 97 98#define HUGE MAXFLOAT 99 100/* 101 * set X_TLOSS = pi*2**52, which is possibly defined in <values.h> 102 * (one may replace the following line by "#include <values.h>") 103 */ 104 105#define X_TLOSS 1.41484755040568800000e+16 106 107#define DOMAIN 1 108#define SING 2 109#define OVERFLOW 3 110#define UNDERFLOW 4 111#define TLOSS 5 112#define PLOSS 6 113 114/* 115 * ANSI/POSIX 116 */ 117extern double acos __P((double)); 118extern double asin __P((double)); 119extern double atan __P((double)); 120extern double atan2 __P((double, double)); 121extern double cos __P((double)); 122extern double sin __P((double)); 123extern double tan __P((double)); 124 125extern double cosh __P((double)); 126extern double sinh __P((double)); 127extern double tanh __P((double)); 128 129extern double exp __P((double)); 130extern double frexp __P((double, int *)); 131extern double ldexp __P((double, int)); 132extern double log __P((double)); 133extern double log10 __P((double)); 134extern double modf __P((double, double *)); 135 136extern double pow __P((double, double)); 137extern double sqrt __P((double)); 138 139extern double ceil __P((double)); 140extern double fabs __P((double)); 141extern double floor __P((double)); 142extern double fmod __P((double, double)); 143 144extern double erf __P((double)); 145extern double erfc __P((double)); 146extern double gamma __P((double)); 147extern double hypot __P((double, double)); 148extern int isnan __P((double)); 149extern int finite __P((double)); 150extern double j0 __P((double)); 151extern double j1 __P((double)); 152extern double jn __P((int, double)); 153extern double lgamma __P((double)); 154extern double y0 __P((double)); 155extern double y1 __P((double)); 156extern double yn __P((int, double)); 157 158extern double acosh __P((double)); 159extern double asinh __P((double)); 160extern double atanh __P((double)); 161extern double cbrt __P((double)); 162extern double logb __P((double)); 163extern double nextafter __P((double, double)); 164extern double remainder __P((double, double)); 165#ifdef _SCALB_INT 166extern double scalb __P((double, int)); 167#else 168extern double scalb __P((double, double)); 169#endif 170 171extern int matherr __P((struct exception *)); 172 173/* 174 * IEEE Test Vector 175 */ 176extern double significand __P((double)); 177 178/* 179 * Functions callable from C, intended to support IEEE arithmetic. 180 */ 181extern double copysign __P((double, double)); 182extern int ilogb __P((double)); 183extern double rint __P((double)); 184extern double scalbn __P((double, int)); 185 186/* 187 * BSD math library entry points 188 */ 189extern double expm1 __P((double)); 190extern double log1p __P((double)); 191 192/* 193 * Reentrant version of gamma & lgamma; passes signgam back by reference 194 * as the second argument; user must allocate space for signgam. 195 */ 196#ifdef _REENTRANT 197extern double gamma_r __P((double, int *)); 198extern double lgamma_r __P((double, int *)); 199#endif /* _REENTRANT */ 200 201/* ieee style elementary functions */ 202extern double __ieee754_sqrt __P((double)); 203extern double __ieee754_acos __P((double)); 204extern double __ieee754_acosh __P((double)); 205extern double __ieee754_log __P((double)); 206extern double __ieee754_atanh __P((double)); 207extern double __ieee754_asin __P((double)); 208extern double __ieee754_atan2 __P((double,double)); 209extern double __ieee754_exp __P((double)); 210extern double __ieee754_cosh __P((double)); 211extern double __ieee754_fmod __P((double,double)); 212extern double __ieee754_pow __P((double,double)); 213extern double __ieee754_lgamma_r __P((double,int *)); 214extern double __ieee754_gamma_r __P((double,int *)); 215extern double __ieee754_lgamma __P((double)); 216extern double __ieee754_gamma __P((double)); 217extern double __ieee754_log10 __P((double)); 218extern double __ieee754_sinh __P((double)); 219extern double __ieee754_hypot __P((double,double)); 220extern double __ieee754_j0 __P((double)); 221extern double __ieee754_j1 __P((double)); 222extern double __ieee754_y0 __P((double)); 223extern double __ieee754_y1 __P((double)); 224extern double __ieee754_jn __P((int,double)); 225extern double __ieee754_yn __P((int,double)); 226extern double __ieee754_remainder __P((double,double)); 227extern int __ieee754_rem_pio2 __P((double,double*)); 228#ifdef _SCALB_INT 229extern double __ieee754_scalb __P((double,int)); 230#else 231extern double __ieee754_scalb __P((double,double)); 232#endif 233 234/* fdlibm kernel function */ 235extern double __kernel_standard __P((double,double,int)); 236extern double __kernel_sin __P((double,double,int)); 237extern double __kernel_cos __P((double,double)); 238extern double __kernel_tan __P((double,double,int)); 239extern int __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*)); 240