1 /*
   2  * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifdef _ALLBSD_SOURCE
  27 #include <machine/endian.h>
  28 #elif __linux__
  29 #define __USE_BSD 1
  30 #include <endian.h>
  31 #endif
  32 #include "jfdlibm.h"
  33 
  34 #ifdef __NEWVALID       /* special setup for Sun test regime */
  35 #if defined(i386) || defined(i486) || \
  36     defined(intel) || defined(x86) || defined(arm) || \
  37     defined(i86pc) || defined(_M_IA64) || defined(ia64)
  38 #define _LITTLE_ENDIAN
  39 #endif
  40 #endif
  41 
  42 #ifdef _LITTLE_ENDIAN
  43 #define __HI(x) *(1+(int*)&x)
  44 #define __LO(x) *(int*)&x
  45 #define __HIp(x) *(1+(int*)x)
  46 #define __LOp(x) *(int*)x
  47 #else
  48 #define __HI(x) *(int*)&x
  49 #define __LO(x) *(1+(int*)&x)
  50 #define __HIp(x) *(int*)x
  51 #define __LOp(x) *(1+(int*)x)
  52 #endif
  53 
  54 #ifndef __P
  55 #ifdef __STDC__
  56 #define __P(p)  p
  57 #else
  58 #define __P(p)  ()
  59 #endif
  60 #endif
  61 
  62 /*
  63  * ANSI/POSIX
  64  */
  65 
  66 extern int signgam;
  67 
  68 #define MAXFLOAT        ((float)3.40282346638528860e+38)
  69 
  70 enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
  71 
  72 #define _LIB_VERSION_TYPE enum fdversion
  73 #define _LIB_VERSION _fdlib_version
  74 
  75 /* if global variable _LIB_VERSION is not desirable, one may
  76  * change the following to be a constant by:
  77  *      #define _LIB_VERSION_TYPE const enum version
  78  * In that case, after one initializes the value _LIB_VERSION (see
  79  * s_lib_version.c) during compile time, it cannot be modified
  80  * in the middle of a program
  81  */
  82 extern  _LIB_VERSION_TYPE  _LIB_VERSION;
  83 
  84 #define _IEEE_  fdlibm_ieee
  85 #define _SVID_  fdlibm_svid
  86 #define _XOPEN_ fdlibm_xopen
  87 #define _POSIX_ fdlibm_posix
  88 
  89 struct exception {
  90         int type;
  91         char *name;
  92         double arg1;
  93         double arg2;
  94         double retval;
  95 };
  96 
  97 #define HUGE            MAXFLOAT
  98 
  99 /*
 100  * set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
 101  * (one may replace the following line by "#include <values.h>")
 102  */
 103 
 104 #define X_TLOSS         1.41484755040568800000e+16
 105 
 106 #define DOMAIN          1
 107 #define SING            2
 108 #define OVERFLOW        3
 109 #define UNDERFLOW       4
 110 #define TLOSS           5
 111 #define PLOSS           6
 112 
 113 /*
 114  * ANSI/POSIX
 115  */
 116 extern double acos __P((double));
 117 extern double asin __P((double));
 118 extern double atan __P((double));
 119 extern double atan2 __P((double, double));
 120 extern double cos __P((double));
 121 extern double sin __P((double));
 122 extern double tan __P((double));
 123 
 124 extern double cosh __P((double));
 125 extern double sinh __P((double));
 126 extern double tanh __P((double));
 127 
 128 extern double exp __P((double));
 129 extern double frexp __P((double, int *));
 130 extern double ldexp __P((double, int));
 131 extern double log __P((double));
 132 extern double log10 __P((double));
 133 extern double modf __P((double, double *));
 134 
 135 extern double sqrt __P((double));
 136 
 137 extern double ceil __P((double));
 138 extern double fabs __P((double));
 139 extern double floor __P((double));
 140 extern double fmod __P((double, double));
 141 
 142 extern double hypot __P((double, double));
 143 extern int isnan __P((double));
 144 extern int finite __P((double));
 145 
 146 extern double atanh __P((double));
 147 extern double cbrt __P((double));
 148 extern double logb __P((double));
 149 extern double nextafter __P((double, double));
 150 extern double remainder __P((double, double));
 151 #ifdef _SCALB_INT
 152 extern double scalb __P((double, int));
 153 #else
 154 extern double scalb __P((double, double));
 155 #endif
 156 
 157 extern int matherr __P((struct exception *));
 158 
 159 /*
 160  * IEEE Test Vector
 161  */
 162 extern double significand __P((double));
 163 
 164 /*
 165  * Functions callable from C, intended to support IEEE arithmetic.
 166  */
 167 extern double copysign __P((double, double));
 168 extern int ilogb __P((double));
 169 extern double rint __P((double));
 170 extern double scalbn __P((double, int));
 171 
 172 /*
 173  * BSD math library entry points
 174  */
 175 extern double expm1 __P((double));
 176 extern double log1p __P((double));
 177 
 178 /* ieee style elementary functions */
 179 extern double __ieee754_sqrt __P((double));
 180 extern double __ieee754_acos __P((double));
 181 extern double __ieee754_log __P((double));
 182 extern double __ieee754_atanh __P((double));
 183 extern double __ieee754_asin __P((double));
 184 extern double __ieee754_atan2 __P((double,double));
 185 extern double __ieee754_exp __P((double));
 186 extern double __ieee754_cosh __P((double));
 187 extern double __ieee754_fmod __P((double,double));
 188 extern double __ieee754_log10 __P((double));
 189 extern double __ieee754_sinh __P((double));
 190 extern double __ieee754_hypot __P((double,double));
 191 extern double __ieee754_remainder __P((double,double));
 192 extern int    __ieee754_rem_pio2 __P((double,double*));
 193 #ifdef _SCALB_INT
 194 extern double __ieee754_scalb __P((double,int));
 195 #else
 196 extern double __ieee754_scalb __P((double,double));
 197 #endif
 198 
 199 /* fdlibm kernel function */
 200 extern double __kernel_standard __P((double,double,int));
 201 extern double __kernel_sin __P((double,double,int));
 202 extern double __kernel_cos __P((double,double));
 203 extern double __kernel_tan __P((double,double,int));
 204 extern int    __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*));
--- EOF ---