-/* $NetBSD: math.h,v 1.44 2006/03/25 16:41:11 xtraeme Exp $ */\r
+/** @file\r
+ Floating-point Math functions and macros.\r
+\r
+ Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials are licensed and made available under\r
+ the terms and conditions of the BSD License that accompanies this distribution.\r
+ The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-/*\r
* ====================================================\r
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.\r
*\r
* software is freely granted, provided that this notice\r
* is preserved.\r
* ====================================================\r
- */\r
-\r
-/*\r
- * @(#)fdlibm.h 5.1 93/09/24\r
- */\r
\r
+ NetBSD: math.h,v 1.44 2006/03/25 16:41:11 xtraeme Exp\r
+ dlibm.h 5.1 93/09/24\r
+**/\r
#ifndef _MATH_H_\r
#define _MATH_H_\r
\r
#include <sys/EfiCdefs.h>\r
-#include <sys/featuretest.h>\r
+#include <sys/featuretest.h>\r
\r
+/** @{\r
+ @brief These are forward references to unions and macros used internaly\r
+ by the implementation of the math functions and macros.\r
+**/\r
union __float_u {\r
unsigned char __dummy[sizeof(float)];\r
float __val;\r
long double __val;\r
};\r
\r
-#include <machine/math.h> /* may use __float_u, __double_u,\r
- or __long_double_u */\r
+#include <machine/math.h> /* may use __float_u, __double_u, or __long_double_u */\r
\r
#ifdef __HAVE_LONG_DOUBLE\r
#define __fpmacro_unary_floating(__name, __arg0) \\r
: __ ## __name ## d (__arg0))\r
#endif /* __HAVE_LONG_DOUBLE */\r
\r
-/*\r
- * ANSI/POSIX\r
+extern const union __double_u __infinity;\r
+extern const union __float_u __infinityf;\r
+extern const union __long_double_u __infinityl;\r
+\r
+/* C99 7.12.3.1 int fpclassify(real-floating x) */\r
+#define fpclassify(__x) __fpmacro_unary_floating(fpclassify, __x)\r
+\r
+/* C99 7.12.3.3 int isinf(real-floating x) */\r
+#ifdef __isinf\r
+ #define isinf(__x) __isinf(__x)\r
+#else\r
+ #define isinf(__x) __fpmacro_unary_floating(isinf, __x)\r
+#endif\r
+\r
+/* C99 7.12.3.4 int isnan(real-floating x) */\r
+#ifdef __isnan\r
+ #define isnan(__x) __isnan(__x)\r
+#else\r
+ #define isnan(__x) __fpmacro_unary_floating(isnan, __x)\r
+#endif\r
+/*@)*/\r
+\r
+/*#############################################################\r
+ * ISO C95\r
*/\r
-/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */\r
-extern const union __double_u __infinity;\r
+\r
+/**@{\r
+ Double, float, and long double versions, respectively, of HUGE_VAL.\r
+*/\r
#define HUGE_VAL __infinity.__val\r
+#define HUGE_VALF __infinityf.__val\r
+#define HUGE_VALL __infinityl.__val\r
+/*@)*/\r
\r
+__BEGIN_DECLS\r
/*\r
- * ISO C99\r
+ * ANSI/POSIX\r
*/\r
-/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */\r
-extern const union __float_u __infinityf;\r
-#define HUGE_VALF __infinityf.__val\r
+/** Compute the principal value of the arc cosine of Arg.\r
\r
-extern const union __long_double_u __infinityl;\r
-#define HUGE_VALL __infinityl.__val\r
+ @param[in] Arg The value to compute the arc cosine of.\r
\r
-/* 7.12#4 INFINITY */\r
-#ifdef __INFINITY\r
-#define INFINITY __INFINITY /* float constant which overflows */\r
-#else\r
-#define INFINITY HUGE_VALF /* positive infinity */\r
-#endif /* __INFINITY */\r
+ @return The computed value of the arc cosine of Arg in the interval [0,pi] radians.\r
+ If Arg is not in the interval [-1,+1], errno is set to EDOM.\r
+**/\r
+double acos(double Arg);\r
\r
-/* 7.12#5 NAN: a quiet NaN, if supported */\r
-#ifdef __HAVE_NANF\r
-extern const union __float_u __nanf;\r
-#define NAN __nanf.__val\r
-#endif /* __HAVE_NANF */\r
+/** Compute the principal value of the arc sine of Arg.\r
\r
-/* 7.12#6 number classification macros */\r
-#define FP_INFINITE 0x00\r
-#define FP_NAN 0x01\r
-#define FP_NORMAL 0x02\r
-#define FP_SUBNORMAL 0x03\r
-#define FP_ZERO 0x04\r
-/* NetBSD extensions */\r
-#define _FP_LOMD 0x80 /* range for machine-specific classes */\r
-#define _FP_HIMD 0xff\r
+ @param[in] Arg The value to compute the arc sine of.\r
+\r
+ @return The computed value of the arc sine of Arg in the interval [-pi/2,+pi/2] radians.\r
+ If Arg is not in the interval [-1,+1], errno is set to EDOM.\r
+**/\r
+double asin(double Arg);\r
+\r
+/** Compute the principal value of the arc tangent of Arg.\r
+\r
+ @param[in] Arg The value to compute the arc tangent of.\r
+\r
+ @return The computed value of the arc tangent of Arg in the interval [-pi/2,+pi/2] radians.\r
+**/\r
+double atan(double Arg);\r
+\r
+/** Compute the value of the arc tangent of (Num / Denom).\r
+ The sign of both arguments is used to determine the quadrant of the return value.\r
+\r
+ @param[in] Num The numerator of the value to compute the arc tangent of.\r
+ @param[in] Denom The denominator of the value to compute the arc tangent of.\r
+\r
+ @return The computed value of the arc tangent of (Num / Denom) in the interval [-pi,+pi] radians.\r
+**/\r
+double atan2(double Num, double Denom);\r
+\r
+/** Compute the value of the cosine of Arg, measured in radians.\r
+\r
+ @param[in] Arg The value to compute the cosine of.\r
+\r
+ @return The computed value of the cosine of Arg.\r
+**/\r
+double cos(double Arg);\r
+\r
+/** Compute the value of the sine of Arg.\r
+\r
+ @param[in] Arg The value to compute the sine of.\r
+\r
+ @return The computed value of the sine of Arg.\r
+**/\r
+double sin(double Arg);\r
+\r
+/** Compute the value of the tangent of Arg.\r
+\r
+ @param[in] Arg The value to compute the tangent of.\r
+\r
+ @return The computed value of the tangent of Arg.\r
+**/\r
+double tan(double Arg);\r
+\r
+\r
+/** Compute the value of the hyperbolic cosine of Arg.\r
+\r
+ @param[in] Arg The value to compute the hyperbolic cosine of.\r
+\r
+ @return The computed value of the hyperbolic cosine of Arg.\r
+ If the magnitude of Arg is too large, errno is set to ERANGE.\r
+**/\r
+double cosh(double Arg);\r
+\r
+/** Compute the value of the hyperbolic sine of Arg.\r
+\r
+ @param[in] Arg The value to compute the hyperbolic sine of.\r
+\r
+ @return The computed value of the hyperbolic sine of Arg.\r
+ If the magnitude of Arg is too large, errno is set to ERANGE.\r
+**/\r
+double sinh(double Arg);\r
+\r
+/** Compute the value of the hyperbolic tangent of Arg.\r
+\r
+ @param[in] Arg The value to compute the hyperbolic tangent of.\r
+\r
+ @return The computed value of the hyperbolic tangent of Arg.\r
+**/\r
+double tanh(double Arg);\r
+\r
+\r
+/** Compute the base-e exponential of Arg.\r
+\r
+ @param[in] Arg The value to compute the base-e exponential of.\r
+\r
+ @return The computed value of e**Arg.\r
+ If the magnitude of Arg is too large, errno is set to ERANGE.\r
+**/\r
+double exp(double Arg);\r
+\r
+/** Break a floating-point number into a normalized fraction and an integral power of 2.\r
+\r
+ @param[in] Value The floating-point value to be broken down.\r
+ @param[out] Exp A pointer to an integer object to receive the integral power of 2 exponent.\r
+\r
+ @return The frexp function returns a value R, such that Value == R**Exp.\r
+ If Value is zero, both parts of the result are zero.\r
+**/\r
+double frexp(double Value, int *Exp);\r
+\r
+/** Multiply a floating-point number, Value, by an integral power of 2, Exp.\r
+\r
+ @param[in] Value The floating-point value to be multiplied.\r
+ @param[out] Exp The integral power of 2 to multiply Value by.\r
+\r
+ @return The ldexp function returns a value R, such that R = Value x 2**Exp.\r
+ If a range error occurs, errno will be set to ERANGE.\r
+**/\r
+double ldexp(double Value, int Exp);\r
+\r
+/** Compute the natural logarithm of Arg.\r
+\r
+ @param[in] Arg The value to compute the natural logarithm of.\r
+\r
+ @return The log function returns log base-e of Arg. If Arg is negative, errno is set to EDOM.\r
+ Otherwise, errno will be set to ERANGE if a range error occurs.\r
+**/\r
+double log(double Arg);\r
+\r
+/** Compute the common (base-10) logarithm of Arg.\r
+\r
+ @param[in] Arg The value to compute the common logarithm of.\r
+\r
+ @return The log10 function returns log base-10 of Arg. If Arg is negative, errno is set to EDOM.\r
+ Otherwise, errno will be set to ERANGE if Arg is 0.\r
+**/\r
+double log10(double Arg);\r
+\r
+/** Compute the base-2 logarithm of Arg.\r
+\r
+ @param[in] Arg The value to compute the base-2 logarithm of.\r
+\r
+ @return The log function returns log base-2 of Arg. If Arg is negative, errno is set to EDOM.\r
+ Otherwise, errno will be set to ERANGE if Arg is 0.\r
+**/\r
+double log2(double Arg);\r
+\r
+/** Break Value into integral and fractional parts, each of which has the same type and sign\r
+ as Value. Store the integral part in the object pointed to by Integ and return the\r
+ fractional part.\r
+\r
+ @param[in] Value The value to compute the arc cosine of.\r
+ @param[out] Integ Pointer to where the integral component is to be stored.\r
+\r
+ @return The fractional part of Value is returned directly while the integral part is\r
+ returned in the location pointed to by Integ.\r
+**/\r
+double modf(double Value, double *Integ);\r
+\r
+/** Compute Value raised to the power Exp.\r
+\r
+ @param[in] Value The value to be raised.\r
+ @param[in] Exp The power Value is to be raised to.\r
+\r
+ @return The pow function returns Value**Exp. If an error occurs, errno will be set as follows:\r
+ - EDOM: Value is finite and negative and Exp is finite and not an integer.\r
+ - EDOM: Both Value and Exp are zero.\r
+ - EDOM: Value is zero and Exp is less than zero.\r
+**/\r
+double pow(double Value, double Exp);\r
+\r
+/** Compute the non-negative square root of Arg.\r
+\r
+ @param[in] Arg The value to compute the square root of.\r
+\r
+ @return The square root of Arg. If Arg is less than zero, errno is set to EDOM.\r
+**/\r
+double sqrt(double Arg);\r
+\r
+\r
+/** Compute the smallest integer value not less than Arg.\r
+\r
+ @param[in] Arg The value to compute the ceiling of.\r
+\r
+ @return The ceiling of Arg expressed as a floating-point number.\r
+**/\r
+double ceil(double Arg);\r
+\r
+/** Compute the absolute value of Arg.\r
+\r
+ @param[in] Arg The value to compute the absolute value of.\r
+\r
+ @return The absolute value of Arg.\r
+**/\r
+double fabs(double Arg);\r
+\r
+/** Compute the largest integer value not greater than Arg.\r
\r
+ @param[in] Arg The value to compute the floor of.\r
+\r
+ @return The largest integer value not greater than Arg, expressed as a floating-point number.\r
+**/\r
+double floor(double);\r
+\r
+/** Compute the floating-point remainder of A1 / A2.\r
+\r
+ @param[in] A1 The dividend.\r
+ @param[in] A2 The divisor.\r
+\r
+ @return The remainder of A1 / A2 with the same sign as A1. If A2 is zero, the fmod function\r
+ returns 0.\r
+**/\r
+double fmod(double A1, double A2);\r
+\r
+\r
+int finite(double);\r
+double expm1(double);\r
+\r
+/**@{\r
+ C99, Posix, or NetBSD functions that are not part of the C95 specification.\r
+**/\r
/*\r
- * XOPEN/SVID\r
+ * Functions callable from C, intended to support IEEE arithmetic.\r
*/\r
-#define M_E 2.7182818284590452354 /* e */\r
-#define M_LOG2E 1.4426950408889634074 /* log 2e */\r
-#define M_LOG10E 0.43429448190325182765 /* log 10e */\r
-#define M_LN2 0.69314718055994530942 /* log e2 */\r
-#define M_LN10 2.30258509299404568402 /* log e10 */\r
-#define M_PI 3.14159265358979323846 /* pi */\r
-#define M_PI_2 1.57079632679489661923 /* pi/2 */\r
-#define M_PI_4 0.78539816339744830962 /* pi/4 */\r
-#define M_1_PI 0.31830988618379067154 /* 1/pi */\r
-#define M_2_PI 0.63661977236758134308 /* 2/pi */\r
-#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */\r
-#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */\r
-#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */\r
+double copysign(double, double);\r
+double scalbn(double, int);\r
\r
-#define MAXFLOAT ((float)3.40282346638528860e+38)\r
+/*\r
+ * Library implementation\r
+ */\r
+int __fpclassifyf(float);\r
+int __fpclassifyd(double);\r
+int __isinff(float);\r
+int __isinfd(double);\r
+int __isnanf(float);\r
+int __isnand(double);\r
+\r
+#ifdef __HAVE_LONG_DOUBLE\r
+ int __fpclassifyl(long double);\r
+ int __isinfl(long double);\r
+ int __isnanl(long double);\r
+#endif /* __HAVE_LONG_DOUBLE */\r
+/*@}*/\r
+\r
+__END_DECLS\r
+\r
+/**@{\r
+ Extensions provided by NetBSD but not required by the C95 standard.\r
+**/\r
extern int signgam;\r
\r
enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};\r
#define _LIB_VERSION_TYPE enum fdversion\r
#define _LIB_VERSION _fdlib_version\r
\r
-/* if global variable _LIB_VERSION is not desirable, one may\r
+/** If global variable _LIB_VERSION is not desirable, one may\r
* change the following to be a constant by:\r
* #define _LIB_VERSION_TYPE const enum version\r
* In that case, after one initializes the value _LIB_VERSION (see\r
\r
#define HUGE MAXFLOAT\r
\r
-/*\r
- * set X_TLOSS = pi*2**52, which is possibly defined in <values.h>\r
- * (one may replace the following line by "#include <values.h>")\r
- */\r
-\r
+/** set X_TLOSS = pi*2**52 **/\r
#define X_TLOSS 1.41484755040568800000e+16\r
\r
#define DOMAIN 1\r
#define UNDERFLOW 4\r
#define TLOSS 5\r
#define PLOSS 6\r
+/*@}*/\r
\r
-\r
-__BEGIN_DECLS\r
-/*\r
- * ANSI/POSIX\r
- */\r
-double acos(double);\r
-double asin(double);\r
-double atan(double);\r
-double atan2(double, double);\r
-double cos(double);\r
-double sin(double);\r
-double tan(double);\r
-\r
-double cosh(double);\r
-double sinh(double);\r
-double tanh(double);\r
-\r
-double exp(double);\r
-double frexp(double, int *);\r
-double ldexp(double, int);\r
-double log(double);\r
-double log2(double);\r
-double log10(double);\r
-double modf(double, double *);\r
-\r
-double pow(double, double);\r
-double sqrt(double);\r
-\r
-double ceil(double);\r
-double fabs(double);\r
-double floor(double);\r
-double fmod(double, double);\r
-\r
-//#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)\r
-//double erf(double);\r
-//double erfc(double);\r
-//double gamma(double);\r
-//double hypot(double, double);\r
-int finite(double);\r
-//double j0(double);\r
-//double j1(double);\r
-//double jn(int, double);\r
-//double lgamma(double);\r
-//double y0(double);\r
-//double y1(double);\r
-//double yn(int, double);\r
-\r
-//#if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)\r
-//double acosh(double);\r
-//double asinh(double);\r
-//double atanh(double);\r
-//double cbrt(double);\r
-double expm1(double);\r
-//int ilogb(double);\r
-//double log1p(double);\r
-//double logb(double);\r
-//double nextafter(double, double);\r
-//double remainder(double, double);\r
-//double rint(double);\r
-//double scalb(double, double);\r
-//#endif /* (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)*/\r
-//#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */\r
-\r
-/* 7.12.3.1 int fpclassify(real-floating x) */\r
-#define fpclassify(__x) __fpmacro_unary_floating(fpclassify, __x)\r
-\r
-#if 0\r
-/*\r
- * ISO C99\r
- */\r
-#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \\r
- !defined(_XOPEN_SOURCE) || \\r
- ((__STDC_VERSION__ - 0) >= 199901L) || \\r
- ((_POSIX_C_SOURCE - 0) >= 200112L) || \\r
- ((_XOPEN_SOURCE - 0) >= 600) || \\r
- defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)\r
-\r
-/* 7.12.3.2 int isfinite(real-floating x) */\r
-#define isfinite(__x) __fpmacro_unary_floating(isfinite, __x)\r
-\r
-/* 7.12.3.5 int isnormal(real-floating x) */\r
-#define isnormal(__x) (fpclassify(__x) == FP_NORMAL)\r
-\r
-/* 7.12.3.6 int signbit(real-floating x) */\r
-#define signbit(__x) __fpmacro_unary_floating(signbit, __x)\r
-\r
-/* 7.12.4 trigonometric */\r
-\r
-float acosf(float);\r
-float asinf(float);\r
-float atanf(float);\r
-float atan2f(float, float);\r
-float cosf(float);\r
-float sinf(float);\r
-float tanf(float);\r
-\r
-/* 7.12.5 hyperbolic */\r
-\r
-float acoshf(float);\r
-float asinhf(float);\r
-float atanhf(float);\r
-float coshf(float);\r
-float sinhf(float);\r
-float tanhf(float);\r
-\r
-/* 7.12.6 exp / log */\r
-\r
-float expf(float);\r
-float expm1f(float);\r
-float frexpf(float, int *);\r
-int ilogbf(float);\r
-float ldexpf(float, int);\r
-float logf(float);\r
-float log2f(float);\r
-float log10f(float);\r
-float log1pf(float);\r
-float logbf(float);\r
-float modff(float, float *);\r
-float scalbnf(float, int);\r
-\r
-/* 7.12.7 power / absolute */\r
-\r
-float cbrtf(float);\r
-float fabsf(float);\r
-float hypotf(float, float);\r
-float powf(float, float);\r
-float sqrtf(float);\r
-\r
-/* 7.12.8 error / gamma */\r
-\r
-float erff(float);\r
-float erfcf(float);\r
-float lgammaf(float);\r
-\r
-/* 7.12.9 nearest integer */\r
-\r
-float ceilf(float);\r
-float floorf(float);\r
-float rintf(float);\r
-double round(double);\r
-float roundf(float);\r
-double trunc(double);\r
-float truncf(float);\r
-long int lrint(double);\r
-long int lrintf(float);\r
-/* LONGLONG */\r
-long long int llrint(double);\r
-/* LONGLONG */\r
-long long int llrintf(float);\r
-long int lround(double);\r
-long int lroundf(float);\r
-/* LONGLONG */\r
-long long int llround(double);\r
-/* LONGLONG */\r
-long long int llroundf(float);\r
-\r
-/* 7.12.10 remainder */\r
-\r
-float fmodf(float, float);\r
-float remainderf(float, float);\r
-\r
-/* 7.2.11 manipulation */\r
-\r
-float copysignf(float, float);\r
-double nan(const char *);\r
-float nanf(const char *);\r
-long double nanl(const char *);\r
-float nextafterf(float, float);\r
-\r
-\r
-#endif /* !_ANSI_SOURCE && ... */\r
-\r
-#if defined(_NETBSD_SOURCE)\r
-#ifndef __cplusplus\r
-int matherr(struct exception *);\r
-#endif\r
-#endif /* _NETBSD_SOURCE */\r
-\r
-/*\r
- * IEEE Test Vector\r
- */\r
-double significand(double);\r
-#endif /* if 0 */\r
-\r
-/* 7.12.3.3 int isinf(real-floating x) */\r
-#ifdef __isinf\r
-#define isinf(__x) __isinf(__x)\r
-#else\r
-#define isinf(__x) __fpmacro_unary_floating(isinf, __x)\r
-#endif\r
-\r
-/* 7.12.3.4 int isnan(real-floating x) */\r
-#ifdef __isnan\r
-#define isnan(__x) __isnan(__x)\r
+/* 7.12#4 INFINITY */\r
+#ifdef __INFINITY\r
+#define INFINITY __INFINITY /**< float constant which overflows */\r
#else\r
-#define isnan(__x) __fpmacro_unary_floating(isnan, __x)\r
-#endif\r
-\r
-/*\r
- * Functions callable from C, intended to support IEEE arithmetic.\r
- */\r
-double copysign(double, double);\r
-double scalbn(double, int);\r
-\r
-#if 0\r
-/*\r
- * BSD math library entry points\r
- */\r
-#ifndef __MATH_PRIVATE__\r
-double cabs(/* struct complex { double r; double i; } */);\r
-#endif\r
-double drem(double, double);\r
-\r
-\r
-#if defined(_NETBSD_SOURCE) || defined(_REENTRANT)\r
-/*\r
- * Reentrant version of gamma & lgamma; passes signgam back by reference\r
- * as the second argument; user must allocate space for signgam.\r
- */\r
-double gamma_r(double, int *);\r
-double lgamma_r(double, int *);\r
-#endif /* _NETBSD_SOURCE || _REENTRANT */\r
-\r
-\r
-#if defined(_NETBSD_SOURCE)\r
-\r
-/* float versions of ANSI/POSIX functions */\r
-\r
-float gammaf(float);\r
-int isinff(float);\r
-int isnanf(float);\r
-int finitef(float);\r
-float j0f(float);\r
-float j1f(float);\r
-float jnf(int, float);\r
-float y0f(float);\r
-float y1f(float);\r
-float ynf(int, float);\r
-\r
-float scalbf(float, float);\r
+#define INFINITY HUGE_VALF /**< positive infinity */\r
+#endif /* __INFINITY */\r
\r
-/*\r
- * float version of IEEE Test Vector\r
- */\r
-float significandf(float);\r
+/* 7.12#5 NAN: a quiet NaN, if supported */\r
+#ifdef __HAVE_NANF\r
+extern const union __float_u __nanf;\r
+#define NAN __nanf.__val\r
+#endif /* __HAVE_NANF */\r
\r
-/*\r
- * float versions of BSD math library entry points\r
- */\r
-#ifndef __MATH_PRIVATE__\r
-float cabsf(/* struct complex { float r; float i; } */);\r
-#endif\r
-float dremf(float, float);\r
-#endif /* _NETBSD_SOURCE */\r
+/**@{\r
+ C99 7.12#6 Number classification macros represent mutually exclusive kinds of floating-point\r
+ values.\r
+**/\r
+#define FP_INFINITE 0x00\r
+#define FP_NAN 0x01\r
+#define FP_NORMAL 0x02\r
+#define FP_SUBNORMAL 0x03\r
+#define FP_ZERO 0x04\r
+/* NetBSD extensions */\r
+#define _FP_LOMD 0x80 /**< range for machine-specific classes */\r
+#define _FP_HIMD 0xff\r
+/*@)*/\r
\r
-#if defined(_NETBSD_SOURCE) || defined(_REENTRANT)\r
-/*\r
- * Float versions of reentrant version of gamma & lgamma; passes\r
- * signgam back by reference as the second argument; user must\r
- * allocate space for signgam.\r
+/**@{\r
+ * Constants ala XOPEN/SVID.\r
*/\r
-float gammaf_r(float, int *);\r
-float lgammaf_r(float, int *);\r
-#endif /* !... || _REENTRANT */\r
-\r
-#endif /* if 0 */\r
-\r
-///*\r
-// * Library implementation\r
-// */\r
-int __fpclassifyf(float);\r
-int __fpclassifyd(double);\r
-//int __isfinitef(float);\r
-//int __isfinited(double);\r
-int __isinff(float);\r
-int __isinfd(double);\r
-int __isnanf(float);\r
-int __isnand(double);\r
-//int __signbitf(float);\r
-//int __signbitd(double);\r
-\r
-//#ifdef __HAVE_LONG_DOUBLE\r
-int __fpclassifyl(long double);\r
-//int __isfinitel(long double);\r
-int __isinfl(long double);\r
-int __isnanl(long double);\r
-//int __signbitl(long double);\r
-//#endif\r
-__END_DECLS\r
+#define M_E 2.7182818284590452354 /**< e */\r
+#define M_LOG2E 1.4426950408889634074 /**< log 2e */\r
+#define M_LOG10E 0.43429448190325182765 /**< log 10e */\r
+#define M_LN2 0.69314718055994530942 /**< log e2 */\r
+#define M_LN10 2.30258509299404568402 /**< log e10 */\r
+#define M_PI 3.14159265358979323846 /**< pi */\r
+#define M_PI_2 1.57079632679489661923 /**< pi/2 */\r
+#define M_PI_4 0.78539816339744830962 /**< pi/4 */\r
+#define M_1_PI 0.31830988618379067154 /**< 1/pi */\r
+#define M_2_PI 0.63661977236758134308 /**< 2/pi */\r
+#define M_2_SQRTPI 1.12837916709551257390 /**< 2/sqrt(pi) */\r
+#define M_SQRT2 1.41421356237309504880 /**< sqrt(2) */\r
+#define M_SQRT1_2 0.70710678118654752440 /**< 1/sqrt(2) */\r
+#define MAXFLOAT ((float)3.40282346638528860e+38)\r
+/*@}*/\r
\r
#endif /* _MATH_H_ */\r
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