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Diffstat (limited to 'libm/src/math_private.h')
| -rw-r--r-- | libm/src/math_private.h | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/libm/src/math_private.h b/libm/src/math_private.h deleted file mode 100644 index 5f6e088..0000000 --- a/libm/src/math_private.h +++ /dev/null @@ -1,273 +0,0 @@ -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -/* - * from: @(#)fdlibm.h 5.1 93/09/24 - * $FreeBSD: src/lib/msun/src/math_private.h,v 1.20 2005/11/28 04:58:57 bde Exp $ - */ - -#ifndef _MATH_PRIVATE_H_ -#define _MATH_PRIVATE_H_ - -#include <sys/types.h> -#include <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. - */ - -/* - * A union which permits us to convert between a double and two 32 bit - * ints. - */ - -#if (__BYTE_ORDER == __BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__)) - -typedef union -{ - double value; - struct - { - u_int32_t msw; - u_int32_t lsw; - } parts; -} ieee_double_shape_type; - -#endif - -#if __BYTE_ORDER == __LITTLE_ENDIAN && !(defined(__arm__) && !defined(__VFP_FP__)) - -typedef union -{ - double value; - struct - { - u_int32_t lsw; - u_int32_t msw; - } parts; -} ieee_double_shape_type; - -#endif - -/* Get two 32 bit ints from a double. */ - -#define EXTRACT_WORDS(ix0,ix1,d) \ -do { \ - ieee_double_shape_type ew_u; \ - ew_u.value = (d); \ - (ix0) = ew_u.parts.msw; \ - (ix1) = ew_u.parts.lsw; \ -} while (0) - -/* Get the more significant 32 bit int from a double. */ - -#define GET_HIGH_WORD(i,d) \ -do { \ - ieee_double_shape_type gh_u; \ - gh_u.value = (d); \ - (i) = gh_u.parts.msw; \ -} while (0) - -/* Get the less significant 32 bit int from a double. */ - -#define GET_LOW_WORD(i,d) \ -do { \ - ieee_double_shape_type gl_u; \ - gl_u.value = (d); \ - (i) = gl_u.parts.lsw; \ -} while (0) - -/* Set a double from two 32 bit ints. */ - -#define INSERT_WORDS(d,ix0,ix1) \ -do { \ - ieee_double_shape_type iw_u; \ - iw_u.parts.msw = (ix0); \ - iw_u.parts.lsw = (ix1); \ - (d) = iw_u.value; \ -} while (0) - -/* Set the more significant 32 bits of a double from an int. */ - -#define SET_HIGH_WORD(d,v) \ -do { \ - ieee_double_shape_type sh_u; \ - sh_u.value = (d); \ - sh_u.parts.msw = (v); \ - (d) = sh_u.value; \ -} while (0) - -/* Set the less significant 32 bits of a double from an int. */ - -#define SET_LOW_WORD(d,v) \ -do { \ - ieee_double_shape_type sl_u; \ - sl_u.value = (d); \ - sl_u.parts.lsw = (v); \ - (d) = sl_u.value; \ -} while (0) - -/* - * A union which permits us to convert between a float and a 32 bit - * int. - */ - -typedef union -{ - float value; - /* FIXME: Assumes 32 bit int. */ - unsigned int word; -} ieee_float_shape_type; - -/* Get a 32 bit int from a float. */ - -#define GET_FLOAT_WORD(i,d) \ -do { \ - ieee_float_shape_type gf_u; \ - gf_u.value = (d); \ - (i) = gf_u.word; \ -} while (0) - -/* Set a float from a 32 bit int. */ - -#define SET_FLOAT_WORD(d,i) \ -do { \ - ieee_float_shape_type sf_u; \ - sf_u.word = (i); \ - (d) = sf_u.value; \ -} while (0) - -#ifdef _COMPLEX_H -/* - * Inline functions that can be used to construct complex values. - * - * The C99 standard intends x+I*y to be used for this, but x+I*y is - * currently unusable in general since gcc introduces many overflow, - * underflow, sign and efficiency bugs by rewriting I*y as - * (0.0+I)*(y+0.0*I) and laboriously computing the full complex product. - * In particular, I*Inf is corrupted to NaN+I*Inf, and I*-0 is corrupted - * to -0.0+I*0.0. - */ -static __inline float complex -cpackf(float x, float y) -{ - float complex z; - - __real__ z = x; - __imag__ z = y; - return (z); -} - -static __inline double complex -cpack(double x, double y) -{ - double complex z; - - __real__ z = x; - __imag__ z = y; - return (z); -} - -static __inline long double complex -cpackl(long double x, long double y) -{ - long double complex z; - - __real__ z = x; - __imag__ z = y; - return (z); -} -#endif /* _COMPLEX_H */ - -/* - * ieee style elementary functions - * - * We rename functions here to improve other sources' diffability - * against fdlibm. - */ -#define __ieee754_sqrt sqrt -#define __ieee754_acos acos -#define __ieee754_acosh acosh -#define __ieee754_log log -#define __ieee754_atanh atanh -#define __ieee754_asin asin -#define __ieee754_atan2 atan2 -#define __ieee754_exp exp -#define __ieee754_cosh cosh -#define __ieee754_fmod fmod -#define __ieee754_pow pow -#define __ieee754_lgamma lgamma -#define __ieee754_gamma gamma -#define __ieee754_lgamma_r lgamma_r -#define __ieee754_gamma_r gamma_r -#define __ieee754_log10 log10 -#define __ieee754_sinh sinh -#define __ieee754_hypot hypot -#define __ieee754_j0 j0 -#define __ieee754_j1 j1 -#define __ieee754_y0 y0 -#define __ieee754_y1 y1 -#define __ieee754_jn jn -#define __ieee754_yn yn -#define __ieee754_remainder remainder -#define __ieee754_scalb scalb -#define __ieee754_sqrtf sqrtf -#define __ieee754_acosf acosf -#define __ieee754_acoshf acoshf -#define __ieee754_logf logf -#define __ieee754_atanhf atanhf -#define __ieee754_asinf asinf -#define __ieee754_atan2f atan2f -#define __ieee754_expf expf -#define __ieee754_coshf coshf -#define __ieee754_fmodf fmodf -#define __ieee754_powf powf -#define __ieee754_lgammaf lgammaf -#define __ieee754_gammaf gammaf -#define __ieee754_lgammaf_r lgammaf_r -#define __ieee754_gammaf_r gammaf_r -#define __ieee754_log10f log10f -#define __ieee754_sinhf sinhf -#define __ieee754_hypotf hypotf -#define __ieee754_j0f j0f -#define __ieee754_j1f j1f -#define __ieee754_y0f y0f -#define __ieee754_y1f y1f -#define __ieee754_jnf jnf -#define __ieee754_ynf ynf -#define __ieee754_remainderf remainderf -#define __ieee754_scalbf scalbf -#define __ieee754_ldexpf ldexpf - -/* fdlibm kernel function */ -int __ieee754_rem_pio2(double,double*); -double __kernel_sin(double,double,int); -double __kernel_cos(double,double); -double __kernel_tan(double,double,int); -int __kernel_rem_pio2(double*,double*,int,int,int,const int*); - -/* float versions of fdlibm kernel functions */ -int __ieee754_rem_pio2f(float,float*); -float __kernel_sindf(double); -float __kernel_cosdf(double); -float __kernel_tandf(double,int); -int __kernel_rem_pio2f(float*,float*,int,int,int,const int*); - -#endif /* !_MATH_PRIVATE_H_ */ |