+++ /dev/null
-/*\r
- * ====================================================\r
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.\r
- *\r
- * Developed at SunPro, a Sun Microsystems, Inc. business.\r
- * Permission to use, copy, modify, and distribute this\r
- * software is freely granted, provided that this notice\r
- * is preserved.\r
- * ====================================================\r
- */\r
-\r
-/*\r
- * from: @(#)fdlibm.h 5.1 93/09/24\r
- * $NetBSD: math_private.h,v 1.12 2005/07/21 12:55:58 christos Exp $\r
- */\r
-\r
-#ifndef _MATH_PRIVATE_H_\r
-#define _MATH_PRIVATE_H_\r
-\r
-#include <sys/types.h>\r
-\r
-/* The original fdlibm code used statements like:\r
- n0 = ((*(int*)&one)>>29)^1; * index of high word *\r
- ix0 = *(n0+(int*)&x); * high word of x *\r
- ix1 = *((1-n0)+(int*)&x); * low word of x *\r
- to dig two 32 bit words out of the 64 bit IEEE floating point\r
- value. That is non-ANSI, and, moreover, the gcc instruction\r
- scheduler gets it wrong. We instead use the following macros.\r
- Unlike the original code, we determine the endianness at compile\r
- time, not at run time; I don't see much benefit to selecting\r
- endianness at run time. */\r
-\r
-/* A union which permits us to convert between a double and two 32 bit\r
- ints. */\r
-\r
-/*\r
- * The ARM ports are little endian except for the FPA word order which is\r
- * big endian.\r
- */\r
-\r
-#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))\r
-\r
-typedef union\r
-{\r
- double value;\r
- struct\r
- {\r
- u_int32_t msw;\r
- u_int32_t lsw;\r
- } parts;\r
-} ieee_double_shape_type;\r
-\r
-#endif\r
-\r
-#if (BYTE_ORDER == LITTLE_ENDIAN) && \\r
- !(defined(__arm__) && !defined(__VFP_FP__))\r
-\r
-typedef union\r
-{\r
- double value;\r
- struct\r
- {\r
- u_int32_t lsw;\r
- u_int32_t msw;\r
- } parts;\r
-} ieee_double_shape_type;\r
-\r
-#endif\r
-\r
-/* Get two 32 bit ints from a double. */\r
-\r
-#define EXTRACT_WORDS(ix0,ix1,d) \\r
-do { \\r
- ieee_double_shape_type ew_u; \\r
- ew_u.value = (d); \\r
- (ix0) = ew_u.parts.msw; \\r
- (ix1) = ew_u.parts.lsw; \\r
-} while (0)\r
-\r
-/* Get the more significant 32 bit int from a double. */\r
-\r
-#define GET_HIGH_WORD(i,d) \\r
-do { \\r
- ieee_double_shape_type gh_u; \\r
- gh_u.value = (d); \\r
- (i) = gh_u.parts.msw; \\r
-} while (0)\r
-\r
-/* Get the less significant 32 bit int from a double. */\r
-\r
-#define GET_LOW_WORD(i,d) \\r
-do { \\r
- ieee_double_shape_type gl_u; \\r
- gl_u.value = (d); \\r
- (i) = gl_u.parts.lsw; \\r
-} while (0)\r
-\r
-/* Set a double from two 32 bit ints. */\r
-\r
-#define INSERT_WORDS(d,ix0,ix1) \\r
-do { \\r
- ieee_double_shape_type iw_u; \\r
- iw_u.parts.msw = (ix0); \\r
- iw_u.parts.lsw = (ix1); \\r
- (d) = iw_u.value; \\r
-} while (0)\r
-\r
-/* Set the more significant 32 bits of a double from an int. */\r
-\r
-#define SET_HIGH_WORD(d,v) \\r
-do { \\r
- ieee_double_shape_type sh_u; \\r
- sh_u.value = (d); \\r
- sh_u.parts.msw = (v); \\r
- (d) = sh_u.value; \\r
-} while (0)\r
-\r
-/* Set the less significant 32 bits of a double from an int. */\r
-\r
-#define SET_LOW_WORD(d,v) \\r
-do { \\r
- ieee_double_shape_type sl_u; \\r
- sl_u.value = (d); \\r
- sl_u.parts.lsw = (v); \\r
- (d) = sl_u.value; \\r
-} while (0)\r
-\r
-/* A union which permits us to convert between a float and a 32 bit\r
- int. */\r
-\r
-typedef union\r
-{\r
- float value;\r
- u_int32_t word;\r
-} ieee_float_shape_type;\r
-\r
-/* Get a 32 bit int from a float. */\r
-\r
-#define GET_FLOAT_WORD(i,d) \\r
-do { \\r
- ieee_float_shape_type gf_u; \\r
- gf_u.value = (d); \\r
- (i) = gf_u.word; \\r
-} while (0)\r
-\r
-/* Set a float from a 32 bit int. */\r
-\r
-#define SET_FLOAT_WORD(d,i) \\r
-do { \\r
- ieee_float_shape_type sf_u; \\r
- sf_u.word = (i); \\r
- (d) = sf_u.value; \\r
-} while (0)\r
-\r
-/* ieee style elementary functions */\r
-extern double __ieee754_sqrt (double);\r
-extern double __ieee754_acos (double);\r
-extern double __ieee754_acosh (double);\r
-extern double __ieee754_log (double);\r
-extern double __ieee754_atanh (double);\r
-extern double __ieee754_asin (double);\r
-extern double __ieee754_atan2 (double, double);\r
-extern double __ieee754_exp (double);\r
-extern double __ieee754_cosh (double);\r
-extern double __ieee754_fmod (double, double);\r
-extern double __ieee754_pow (double, double);\r
-extern double __ieee754_lgamma_r (double, int *);\r
-extern double __ieee754_gamma_r (double, int *);\r
-extern double __ieee754_lgamma (double);\r
-extern double __ieee754_gamma (double);\r
-extern double __ieee754_log10 (double);\r
-extern double __ieee754_log2 (double);\r
-extern double __ieee754_sinh (double);\r
-extern double __ieee754_hypot (double, double);\r
-extern double __ieee754_j0 (double);\r
-extern double __ieee754_j1 (double);\r
-extern double __ieee754_y0 (double);\r
-extern double __ieee754_y1 (double);\r
-extern double __ieee754_jn (int, double);\r
-extern double __ieee754_yn (int, double);\r
-extern double __ieee754_remainder (double, double);\r
-extern int __ieee754_rem_pio2 (double,double*);\r
-extern double __ieee754_scalb (double, double);\r
-\r
-/* fdlibm kernel function */\r
-extern double __kernel_standard (double, double, int);\r
-extern double __kernel_sin (double, double, int);\r
-extern double __kernel_cos (double, double);\r
-extern double __kernel_tan (double, double, int);\r
-extern int __kernel_rem_pio2 (double*,double*,int,int,int,const int*);\r
-\r
-\r
-///* ieee style elementary float functions */\r
-//extern float __ieee754_sqrtf __P((float));\r
-//extern float __ieee754_acosf __P((float));\r
-//extern float __ieee754_acoshf __P((float));\r
-//extern float __ieee754_logf __P((float));\r
-//extern float __ieee754_atanhf __P((float));\r
-//extern float __ieee754_asinf __P((float));\r
-//extern float __ieee754_atan2f __P((float,float));\r
-//extern float __ieee754_expf __P((float));\r
-//extern float __ieee754_coshf __P((float));\r
-//extern float __ieee754_fmodf __P((float,float));\r
-//extern float __ieee754_powf __P((float,float));\r
-//extern float __ieee754_lgammaf_r __P((float,int *));\r
-//extern float __ieee754_gammaf_r __P((float,int *));\r
-//extern float __ieee754_lgammaf __P((float));\r
-//extern float __ieee754_gammaf __P((float));\r
-//extern float __ieee754_log10f __P((float));\r
-//extern float __ieee754_log2f __P((float));\r
-//extern float __ieee754_sinhf __P((float));\r
-//extern float __ieee754_hypotf __P((float,float));\r
-//extern float __ieee754_j0f __P((float));\r
-//extern float __ieee754_j1f __P((float));\r
-//extern float __ieee754_y0f __P((float));\r
-//extern float __ieee754_y1f __P((float));\r
-//extern float __ieee754_jnf __P((int,float));\r
-//extern float __ieee754_ynf __P((int,float));\r
-//extern float __ieee754_remainderf __P((float,float));\r
-//extern int __ieee754_rem_pio2f __P((float,float*));\r
-//extern float __ieee754_scalbf __P((float,float));\r
-\r
-///* float versions of fdlibm kernel functions */\r
-//extern float __kernel_sinf __P((float,float,int));\r
-//extern float __kernel_cosf __P((float,float));\r
-//extern float __kernel_tanf __P((float,float,int));\r
-//extern int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*));\r
-\r
-#endif /* _MATH_PRIVATE_H_ */\r
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