| |
| /* |
| * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #ifdef _ALLBSD_SOURCE |
| #include <machine/endian.h> |
| #elif __linux__ |
| #define __USE_BSD 1 |
| #include <endian.h> |
| #endif |
| #include "jfdlibm.h" |
| |
| #ifdef __NEWVALID /* special setup for Sun test regime */ |
| #if defined(i386) || defined(i486) || \ |
| defined(intel) || defined(x86) || defined(arm) || \ |
| defined(i86pc) || defined(_M_IA64) || defined(ia64) |
| #define _LITTLE_ENDIAN |
| #endif |
| #endif |
| |
| #ifdef _LITTLE_ENDIAN |
| #define __HI(x) *(1+(int*)&x) |
| #define __LO(x) *(int*)&x |
| #define __HIp(x) *(1+(int*)x) |
| #define __LOp(x) *(int*)x |
| #else |
| #define __HI(x) *(int*)&x |
| #define __LO(x) *(1+(int*)&x) |
| #define __HIp(x) *(int*)x |
| #define __LOp(x) *(1+(int*)x) |
| #endif |
| |
| #ifndef __P |
| #ifdef __STDC__ |
| #define __P(p) p |
| #else |
| #define __P(p) () |
| #endif |
| #endif |
| |
| /* |
| * ANSI/POSIX |
| */ |
| |
| extern int signgam; |
| |
| #define MAXFLOAT ((float)3.40282346638528860e+38) |
| |
| enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix}; |
| |
| #define _LIB_VERSION_TYPE enum fdversion |
| #define _LIB_VERSION _fdlib_version |
| |
| /* if global variable _LIB_VERSION is not desirable, one may |
| * change the following to be a constant by: |
| * #define _LIB_VERSION_TYPE const enum version |
| * In that case, after one initializes the value _LIB_VERSION (see |
| * s_lib_version.c) during compile time, it cannot be modified |
| * in the middle of a program |
| */ |
| extern _LIB_VERSION_TYPE _LIB_VERSION; |
| |
| #define _IEEE_ fdlibm_ieee |
| #define _SVID_ fdlibm_svid |
| #define _XOPEN_ fdlibm_xopen |
| #define _POSIX_ fdlibm_posix |
| |
| struct exception { |
| int type; |
| char *name; |
| double arg1; |
| double arg2; |
| double retval; |
| }; |
| |
| #define HUGE MAXFLOAT |
| |
| /* |
| * set X_TLOSS = pi*2**52, which is possibly defined in <values.h> |
| * (one may replace the following line by "#include <values.h>") |
| */ |
| |
| #define X_TLOSS 1.41484755040568800000e+16 |
| |
| #define DOMAIN 1 |
| #define SING 2 |
| #define OVERFLOW 3 |
| #define UNDERFLOW 4 |
| #define TLOSS 5 |
| #define PLOSS 6 |
| |
| /* |
| * ANSI/POSIX |
| */ |
| extern double acos __P((double)); |
| extern double asin __P((double)); |
| extern double atan __P((double)); |
| extern double atan2 __P((double, double)); |
| extern double cos __P((double)); |
| extern double sin __P((double)); |
| extern double tan __P((double)); |
| |
| extern double cosh __P((double)); |
| extern double sinh __P((double)); |
| extern double tanh __P((double)); |
| |
| extern double exp __P((double)); |
| extern double frexp __P((double, int *)); |
| extern double ldexp __P((double, int)); |
| extern double log __P((double)); |
| extern double log10 __P((double)); |
| extern double modf __P((double, double *)); |
| |
| extern double pow __P((double, double)); |
| extern double sqrt __P((double)); |
| |
| extern double ceil __P((double)); |
| extern double fabs __P((double)); |
| extern double floor __P((double)); |
| extern double fmod __P((double, double)); |
| |
| extern double erf __P((double)); |
| extern double erfc __P((double)); |
| extern double gamma __P((double)); |
| extern double hypot __P((double, double)); |
| extern int isnan __P((double)); |
| extern int finite __P((double)); |
| extern double j0 __P((double)); |
| extern double j1 __P((double)); |
| extern double jn __P((int, double)); |
| extern double lgamma __P((double)); |
| extern double y0 __P((double)); |
| extern double y1 __P((double)); |
| extern double yn __P((int, double)); |
| |
| extern double acosh __P((double)); |
| extern double asinh __P((double)); |
| extern double atanh __P((double)); |
| extern double cbrt __P((double)); |
| extern double logb __P((double)); |
| extern double nextafter __P((double, double)); |
| extern double remainder __P((double, double)); |
| #ifdef _SCALB_INT |
| extern double scalb __P((double, int)); |
| #else |
| extern double scalb __P((double, double)); |
| #endif |
| |
| extern int matherr __P((struct exception *)); |
| |
| /* |
| * IEEE Test Vector |
| */ |
| extern double significand __P((double)); |
| |
| /* |
| * Functions callable from C, intended to support IEEE arithmetic. |
| */ |
| extern double copysign __P((double, double)); |
| extern int ilogb __P((double)); |
| extern double rint __P((double)); |
| extern double scalbn __P((double, int)); |
| |
| /* |
| * BSD math library entry points |
| */ |
| extern double expm1 __P((double)); |
| extern double log1p __P((double)); |
| |
| /* |
| * Reentrant version of gamma & lgamma; passes signgam back by reference |
| * as the second argument; user must allocate space for signgam. |
| */ |
| #ifdef _REENTRANT |
| extern double gamma_r __P((double, int *)); |
| extern double lgamma_r __P((double, int *)); |
| #endif /* _REENTRANT */ |
| |
| /* ieee style elementary functions */ |
| extern double __ieee754_sqrt __P((double)); |
| extern double __ieee754_acos __P((double)); |
| extern double __ieee754_acosh __P((double)); |
| extern double __ieee754_log __P((double)); |
| extern double __ieee754_atanh __P((double)); |
| extern double __ieee754_asin __P((double)); |
| extern double __ieee754_atan2 __P((double,double)); |
| extern double __ieee754_exp __P((double)); |
| extern double __ieee754_cosh __P((double)); |
| extern double __ieee754_fmod __P((double,double)); |
| extern double __ieee754_pow __P((double,double)); |
| extern double __ieee754_lgamma_r __P((double,int *)); |
| extern double __ieee754_gamma_r __P((double,int *)); |
| extern double __ieee754_lgamma __P((double)); |
| extern double __ieee754_gamma __P((double)); |
| extern double __ieee754_log10 __P((double)); |
| extern double __ieee754_sinh __P((double)); |
| extern double __ieee754_hypot __P((double,double)); |
| extern double __ieee754_j0 __P((double)); |
| extern double __ieee754_j1 __P((double)); |
| extern double __ieee754_y0 __P((double)); |
| extern double __ieee754_y1 __P((double)); |
| extern double __ieee754_jn __P((int,double)); |
| extern double __ieee754_yn __P((int,double)); |
| extern double __ieee754_remainder __P((double,double)); |
| extern int __ieee754_rem_pio2 __P((double,double*)); |
| #ifdef _SCALB_INT |
| extern double __ieee754_scalb __P((double,int)); |
| #else |
| extern double __ieee754_scalb __P((double,double)); |
| #endif |
| |
| /* fdlibm kernel function */ |
| extern double __kernel_standard __P((double,double,int)); |
| extern double __kernel_sin __P((double,double,int)); |
| extern double __kernel_cos __P((double,double)); |
| extern double __kernel_tan __P((double,double,int)); |
| extern int __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*)); |