| |
| /* @(#)fdlibm.h 1.5 04/04/22 */ |
| /* |
| * ==================================================== |
| * Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef __LITTLE_ENDIAN |
| /* Sometimes it's necessary to define __LITTLE_ENDIAN explicitly |
| but these catch some common cases. */ |
| #if defined(i386) || defined(i486) || \ |
| defined(intel) || defined(x86) || defined(i86pc) || \ |
| defined(__alpha) || defined(__osf__) || defined(__MIPSEL__) |
| #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 |
| #define __FDLIBM_P_DEFINED |
| #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 ieee_acos __P((double)); |
| extern double ieee_asin __P((double)); |
| extern double ieee_atan __P((double)); |
| extern double ieee_atan2 __P((double, double)); |
| extern double ieee_cos __P((double)); |
| extern double ieee_sin __P((double)); |
| extern double ieee_tan __P((double)); |
| |
| extern double ieee_cosh __P((double)); |
| extern double ieee_sinh __P((double)); |
| extern double ieee_tanh __P((double)); |
| |
| extern double ieee_exp __P((double)); |
| extern double ieee_frexp __P((double, int *)); |
| extern double ieee_ldexp __P((double, int)); |
| extern double ieee_log __P((double)); |
| extern double ieee_log10 __P((double)); |
| extern double ieee_modf __P((double, double *)); |
| |
| extern double ieee_pow __P((double, double)); |
| extern double ieee_sqrt __P((double)); |
| |
| extern double ieee_ceil __P((double)); |
| extern double ieee_fabs __P((double)); |
| extern double ieee_floor __P((double)); |
| extern double ieee_fmod __P((double, double)); |
| |
| extern double ieee_erf __P((double)); |
| extern double ieee_erfc __P((double)); |
| extern double ieee_gamma __P((double)); |
| extern double ieee_hypot __P((double, double)); |
| extern int ieee_isnan __P((double)); |
| extern int ieee_finite __P((double)); |
| extern double ieee_j0 __P((double)); |
| extern double ieee_j1 __P((double)); |
| extern double ieee_jn __P((int, double)); |
| extern double ieee_lgamma __P((double)); |
| extern double ieee_y0 __P((double)); |
| extern double ieee_y1 __P((double)); |
| extern double ieee_yn __P((int, double)); |
| |
| extern double acosh __P((double)); |
| extern double asinh __P((double)); |
| extern double atanh __P((double)); |
| extern double ieee_cbrt __P((double)); |
| extern double ieee_logb __P((double)); |
| extern double ieee_nextafter __P((double, double)); |
| extern double ieee_remainder __P((double, double)); |
| #ifdef _SCALB_INT |
| extern double ieee_scalb __P((double, int)); |
| #else |
| extern double ieee_scalb __P((double, double)); |
| #endif |
| |
| extern int ieee_matherr __P((struct exception *)); |
| |
| /* |
| * IEEE Test Vector |
| */ |
| extern double ieee_significand __P((double)); |
| |
| /* |
| * Functions callable from C, intended to support IEEE arithmetic. |
| */ |
| extern double ieee_copysign __P((double, double)); |
| extern int ieee_ilogb __P((double)); |
| extern double ieee_rint __P((double)); |
| extern double ieee_scalbn __P((double, int)); |
| |
| /* |
| * BSD math library entry points |
| */ |
| extern double ieee_expm1 __P((double)); |
| extern double ieee_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 ieee_gamma_r __P((double, int *)); |
| extern double ieee_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*)); |
| |
| #ifdef __FDLIBM_P_DEFINED |
| #undef __P |
| #endif |
| |
| #ifdef __cplusplus |
| }; /* extern "C" */ |
| #endif |
