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232 lines
6.5 KiB
232 lines
6.5 KiB
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/* @(#)fdlibm.h 1.5 04/04/22 */ |
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/* |
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* ==================================================== |
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* Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved. |
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* |
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* Permission to use, copy, modify, and distribute this |
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* software is freely granted, provided that this notice |
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* is preserved. |
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* ==================================================== |
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*/ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#ifndef __LITTLE_ENDIAN |
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/* Sometimes it's necessary to define __LITTLE_ENDIAN explicitly |
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but these catch some common cases. */ |
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#if defined(i386) || defined(i486) || \ |
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defined(intel) || defined(x86) || defined(i86pc) || \ |
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defined(__alpha) || defined(__osf__) || defined(__MIPSEL__) |
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#define __LITTLE_ENDIAN |
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#endif |
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#endif |
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#ifdef __LITTLE_ENDIAN |
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#define __HI(x) *(1+(int*)&x) |
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#define __LO(x) *(int*)&x |
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#define __HIp(x) *(1+(int*)x) |
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#define __LOp(x) *(int*)x |
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#else |
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#define __HI(x) *(int*)&x |
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#define __LO(x) *(1+(int*)&x) |
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#define __HIp(x) *(int*)x |
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#define __LOp(x) *(1+(int*)x) |
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#endif |
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#ifndef __P |
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#define __FDLIBM_P_DEFINED |
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#ifdef __STDC__ |
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#define __P(p) p |
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#else |
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#define __P(p) () |
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#endif |
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#endif |
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/* |
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* ANSI/POSIX |
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*/ |
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extern int signgam; |
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#define MAXFLOAT ((float)3.40282346638528860e+38) |
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enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix}; |
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#define _LIB_VERSION_TYPE enum fdversion |
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#define _LIB_VERSION _fdlib_version |
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/* if global variable _LIB_VERSION is not desirable, one may |
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* change the following to be a constant by: |
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* #define _LIB_VERSION_TYPE const enum version |
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* In that case, after one initializes the value _LIB_VERSION (see |
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* s_lib_version.c) during compile time, it cannot be modified |
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* in the middle of a program |
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*/ |
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extern _LIB_VERSION_TYPE _LIB_VERSION; |
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#define _IEEE_ fdlibm_ieee |
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#define _SVID_ fdlibm_svid |
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#define _XOPEN_ fdlibm_xopen |
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#define _POSIX_ fdlibm_posix |
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struct exception { |
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int type; |
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char *name; |
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double arg1; |
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double arg2; |
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double retval; |
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}; |
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#define HUGE MAXFLOAT |
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/* |
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* set X_TLOSS = pi*2**52, which is possibly defined in <values.h> |
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* (one may replace the following line by "#include <values.h>") |
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*/ |
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#define X_TLOSS 1.41484755040568800000e+16 |
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#define DOMAIN 1 |
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#define SING 2 |
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#define OVERFLOW 3 |
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#define UNDERFLOW 4 |
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#define TLOSS 5 |
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#define PLOSS 6 |
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/* |
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* ANSI/POSIX |
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*/ |
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extern double ieee_acos __P((double)); |
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extern double ieee_asin __P((double)); |
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extern double ieee_atan __P((double)); |
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extern double ieee_atan2 __P((double, double)); |
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extern double ieee_cos __P((double)); |
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extern double ieee_sin __P((double)); |
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extern double ieee_tan __P((double)); |
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extern double ieee_cosh __P((double)); |
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extern double ieee_sinh __P((double)); |
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extern double ieee_tanh __P((double)); |
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extern double ieee_exp __P((double)); |
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extern double ieee_frexp __P((double, int *)); |
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extern double ieee_ldexp __P((double, int)); |
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extern double ieee_log __P((double)); |
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extern double ieee_log10 __P((double)); |
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extern double ieee_modf __P((double, double *)); |
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extern double ieee_pow __P((double, double)); |
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extern double ieee_sqrt __P((double)); |
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extern double ieee_ceil __P((double)); |
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extern double ieee_fabs __P((double)); |
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extern double ieee_floor __P((double)); |
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extern double ieee_fmod __P((double, double)); |
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extern double ieee_erf __P((double)); |
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extern double ieee_erfc __P((double)); |
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extern double ieee_gamma __P((double)); |
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extern double ieee_hypot __P((double, double)); |
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extern int ieee_isnan __P((double)); |
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extern int ieee_finite __P((double)); |
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extern double ieee_j0 __P((double)); |
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extern double ieee_j1 __P((double)); |
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extern double ieee_jn __P((int, double)); |
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extern double ieee_lgamma __P((double)); |
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extern double ieee_y0 __P((double)); |
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extern double ieee_y1 __P((double)); |
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extern double ieee_yn __P((int, double)); |
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extern double acosh __P((double)); |
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extern double asinh __P((double)); |
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extern double atanh __P((double)); |
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extern double ieee_cbrt __P((double)); |
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extern double ieee_logb __P((double)); |
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extern double ieee_nextafter __P((double, double)); |
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extern double ieee_remainder __P((double, double)); |
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#ifdef _SCALB_INT |
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extern double ieee_scalb __P((double, int)); |
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#else |
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extern double ieee_scalb __P((double, double)); |
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#endif |
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extern int ieee_matherr __P((struct exception *)); |
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/* |
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* IEEE Test Vector |
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*/ |
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extern double ieee_significand __P((double)); |
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/* |
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* Functions callable from C, intended to support IEEE arithmetic. |
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*/ |
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extern double ieee_copysign __P((double, double)); |
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extern int ieee_ilogb __P((double)); |
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extern double ieee_rint __P((double)); |
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extern double ieee_scalbn __P((double, int)); |
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/* |
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* BSD math library entry points |
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*/ |
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extern double ieee_expm1 __P((double)); |
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extern double ieee_log1p __P((double)); |
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/* |
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* Reentrant version of gamma & lgamma; passes signgam back by reference |
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* as the second argument; user must allocate space for signgam. |
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*/ |
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#ifdef _REENTRANT |
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extern double ieee_gamma_r __P((double, int *)); |
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extern double ieee_lgamma_r __P((double, int *)); |
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#endif /* _REENTRANT */ |
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/* ieee style elementary functions */ |
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extern double __ieee754_sqrt __P((double)); |
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extern double __ieee754_acos __P((double)); |
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extern double __ieee754_acosh __P((double)); |
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extern double __ieee754_log __P((double)); |
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extern double __ieee754_atanh __P((double)); |
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extern double __ieee754_asin __P((double)); |
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extern double __ieee754_atan2 __P((double,double)); |
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extern double __ieee754_exp __P((double)); |
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extern double __ieee754_cosh __P((double)); |
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extern double __ieee754_fmod __P((double,double)); |
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extern double __ieee754_pow __P((double,double)); |
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extern double __ieee754_lgamma_r __P((double,int *)); |
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extern double __ieee754_gamma_r __P((double,int *)); |
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extern double __ieee754_lgamma __P((double)); |
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extern double __ieee754_gamma __P((double)); |
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extern double __ieee754_log10 __P((double)); |
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extern double __ieee754_sinh __P((double)); |
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extern double __ieee754_hypot __P((double,double)); |
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extern double __ieee754_j0 __P((double)); |
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extern double __ieee754_j1 __P((double)); |
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extern double __ieee754_y0 __P((double)); |
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extern double __ieee754_y1 __P((double)); |
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extern double __ieee754_jn __P((int,double)); |
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extern double __ieee754_yn __P((int,double)); |
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extern double __ieee754_remainder __P((double,double)); |
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extern int __ieee754_rem_pio2 __P((double,double*)); |
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#ifdef _SCALB_INT |
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extern double __ieee754_scalb __P((double,int)); |
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#else |
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extern double __ieee754_scalb __P((double,double)); |
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#endif |
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/* fdlibm kernel function */ |
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extern double __kernel_standard __P((double,double,int)); |
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extern double __kernel_sin __P((double,double,int)); |
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extern double __kernel_cos __P((double,double)); |
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extern double __kernel_tan __P((double,double,int)); |
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extern int __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*)); |
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#ifdef __FDLIBM_P_DEFINED |
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#undef __P |
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#endif |
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#ifdef __cplusplus |
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}; /* extern "C" */ |
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#endif
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