diff options
Diffstat (limited to 'lib/msun/src/math_private.h')
| -rw-r--r-- | lib/msun/src/math_private.h | 165 |
1 files changed, 85 insertions, 80 deletions
diff --git a/lib/msun/src/math_private.h b/lib/msun/src/math_private.h index 817f8ce..23e37de 100644 --- a/lib/msun/src/math_private.h +++ b/lib/msun/src/math_private.h @@ -15,24 +15,28 @@ */ #ifndef _MATH_PRIVATE_H_ -#define _MATH_PRIVATE_H_ +#define _MATH_PRIVATE_H_ #include <sys/types.h> #include <machine/endian.h> -/* The original fdlibm code used statements like: - n0 = ((*(int*)&one)>>29)^1; * index of high word * - ix0 = *(n0+(int*)&x); * high word of x * - ix1 = *((1-n0)+(int*)&x); * low word of x * - to dig two 32 bit words out of the 64 bit IEEE floating point - value. That is non-ANSI, and, moreover, the gcc instruction - scheduler gets it wrong. We instead use the following macros. - Unlike the original code, we determine the endianness at compile - time, not at run time; I don't see much benefit to selecting - endianness at run time. */ +/* + * The original fdlibm code used statements like: + * n0 = ((*(int*)&one)>>29)^1; * index of high word * + * ix0 = *(n0+(int*)&x); * high word of x * + * ix1 = *((1-n0)+(int*)&x); * low word of x * + * to dig two 32 bit words out of the 64 bit IEEE floating point + * value. That is non-ANSI, and, moreover, the gcc instruction + * scheduler gets it wrong. We instead use the following macros. + * Unlike the original code, we determine the endianness at compile + * time, not at run time; I don't see much benefit to selecting + * endianness at run time. + */ -/* A union which permits us to convert between a double and two 32 bit - ints. */ +/* + * A union which permits us to convert between a double and two 32 bit + * ints. + */ #if BYTE_ORDER == BIG_ENDIAN @@ -120,8 +124,10 @@ do { \ (d) = sl_u.value; \ } while (0) -/* A union which permits us to convert between a float and a 32 bit - int. */ +/* + * A union which permits us to convert between a float and a 32 bit + * int. + */ typedef union { @@ -149,76 +155,75 @@ do { \ } while (0) /* 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*)); -extern double __ieee754_scalb __P((double,double)); +double __ieee754_sqrt __P((double)); +double __ieee754_acos __P((double)); +double __ieee754_acosh __P((double)); +double __ieee754_log __P((double)); +double __ieee754_atanh __P((double)); +double __ieee754_asin __P((double)); +double __ieee754_atan2 __P((double,double)); +double __ieee754_exp __P((double)); +double __ieee754_cosh __P((double)); +double __ieee754_fmod __P((double,double)); +double __ieee754_pow __P((double,double)); +double __ieee754_lgamma_r __P((double,int *)); +double __ieee754_gamma_r __P((double,int *)); +double __ieee754_lgamma __P((double)); +double __ieee754_gamma __P((double)); +double __ieee754_log10 __P((double)); +double __ieee754_sinh __P((double)); +double __ieee754_hypot __P((double,double)); +double __ieee754_j0 __P((double)); +double __ieee754_j1 __P((double)); +double __ieee754_y0 __P((double)); +double __ieee754_y1 __P((double)); +double __ieee754_jn __P((int,double)); +double __ieee754_yn __P((int,double)); +double __ieee754_remainder __P((double,double)); +int __ieee754_rem_pio2 __P((double,double*)); +double __ieee754_scalb __P((double,double)); /* 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*)); - +double __kernel_standard __P((double,double,int)); +double __kernel_sin __P((double,double,int)); +double __kernel_cos __P((double,double)); +double __kernel_tan __P((double,double,int)); +int __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*)); /* ieee style elementary float functions */ -extern float __ieee754_sqrtf __P((float)); -extern float __ieee754_acosf __P((float)); -extern float __ieee754_acoshf __P((float)); -extern float __ieee754_logf __P((float)); -extern float __ieee754_atanhf __P((float)); -extern float __ieee754_asinf __P((float)); -extern float __ieee754_atan2f __P((float,float)); -extern float __ieee754_expf __P((float)); -extern float __ieee754_coshf __P((float)); -extern float __ieee754_fmodf __P((float,float)); -extern float __ieee754_powf __P((float,float)); -extern float __ieee754_lgammaf_r __P((float,int *)); -extern float __ieee754_gammaf_r __P((float,int *)); -extern float __ieee754_lgammaf __P((float)); -extern float __ieee754_gammaf __P((float)); -extern float __ieee754_log10f __P((float)); -extern float __ieee754_sinhf __P((float)); -extern float __ieee754_hypotf __P((float,float)); -extern float __ieee754_j0f __P((float)); -extern float __ieee754_j1f __P((float)); -extern float __ieee754_y0f __P((float)); -extern float __ieee754_y1f __P((float)); -extern float __ieee754_jnf __P((int,float)); -extern float __ieee754_ynf __P((int,float)); -extern float __ieee754_remainderf __P((float,float)); -extern int __ieee754_rem_pio2f __P((float,float*)); -extern float __ieee754_scalbf __P((float,float)); +float __ieee754_sqrtf __P((float)); +float __ieee754_acosf __P((float)); +float __ieee754_acoshf __P((float)); +float __ieee754_logf __P((float)); +float __ieee754_atanhf __P((float)); +float __ieee754_asinf __P((float)); +float __ieee754_atan2f __P((float,float)); +float __ieee754_expf __P((float)); +float __ieee754_coshf __P((float)); +float __ieee754_fmodf __P((float,float)); +float __ieee754_powf __P((float,float)); +float __ieee754_lgammaf_r __P((float,int *)); +float __ieee754_gammaf_r __P((float,int *)); +float __ieee754_lgammaf __P((float)); +float __ieee754_gammaf __P((float)); +float __ieee754_log10f __P((float)); +float __ieee754_sinhf __P((float)); +float __ieee754_hypotf __P((float,float)); +float __ieee754_j0f __P((float)); +float __ieee754_j1f __P((float)); +float __ieee754_y0f __P((float)); +float __ieee754_y1f __P((float)); +float __ieee754_jnf __P((int,float)); +float __ieee754_ynf __P((int,float)); +float __ieee754_remainderf __P((float,float)); +int __ieee754_rem_pio2f __P((float,float*)); +float __ieee754_scalbf __P((float,float)); /* float versions of fdlibm kernel functions */ -extern float __kernel_sinf __P((float,float,int)); -extern float __kernel_cosf __P((float,float)); -extern float __kernel_tanf __P((float,float,int)); -extern int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*)); +float __kernel_sinf __P((float,float,int)); +float __kernel_cosf __P((float,float)); +float __kernel_tanf __P((float,float,int)); +int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*)); #if defined(__alpha__) || defined(__ia64__) #define __generic___ieee754_acos __ieee754_acos @@ -247,4 +252,4 @@ extern int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*)); #define __generic_tan tan #endif -#endif /* _MATH_PRIVATE_H_ */ +#endif /* !_MATH_PRIVATE_H_ */ |
