/* @(#)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 * (one may replace the following line by "#include ") */ #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