Update or add comments to files and functions for use by Doxygen.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12139 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
darylm503
@ -1,6 +1,15 @@
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/* $NetBSD: math.h,v 1.44 2006/03/25 16:41:11 xtraeme Exp $ */
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/** @file
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Floating-point Math functions and macros.
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Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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||||
This program and the accompanying materials are licensed and made available under
|
||||
the terms and conditions of the BSD License that accompanies this distribution.
|
||||
The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.
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||||
|
||||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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||||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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||||
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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@ -9,18 +18,20 @@
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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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/*
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* @(#)fdlibm.h 5.1 93/09/24
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*/
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NetBSD: math.h,v 1.44 2006/03/25 16:41:11 xtraeme Exp
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dlibm.h 5.1 93/09/24
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**/
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#ifndef _MATH_H_
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#define _MATH_H_
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#include <sys/EfiCdefs.h>
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#include <sys/featuretest.h>
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#include <sys/featuretest.h>
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/** @{
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@brief These are forward references to unions and macros used internaly
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by the implementation of the math functions and macros.
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**/
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union __float_u {
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unsigned char __dummy[sizeof(float)];
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float __val;
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@ -36,8 +47,7 @@ union __long_double_u {
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long double __val;
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};
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#include <machine/math.h> /* may use __float_u, __double_u,
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or __long_double_u */
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#include <machine/math.h> /* may use __float_u, __double_u, or __long_double_u */
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#ifdef __HAVE_LONG_DOUBLE
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#define __fpmacro_unary_floating(__name, __arg0) \
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@ -55,64 +65,290 @@ union __long_double_u {
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: __ ## __name ## d (__arg0))
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#endif /* __HAVE_LONG_DOUBLE */
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|
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extern const union __double_u __infinity;
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extern const union __float_u __infinityf;
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extern const union __long_double_u __infinityl;
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/* C99 7.12.3.1 int fpclassify(real-floating x) */
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#define fpclassify(__x) __fpmacro_unary_floating(fpclassify, __x)
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/* C99 7.12.3.3 int isinf(real-floating x) */
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#ifdef __isinf
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#define isinf(__x) __isinf(__x)
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#else
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#define isinf(__x) __fpmacro_unary_floating(isinf, __x)
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#endif
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/* C99 7.12.3.4 int isnan(real-floating x) */
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#ifdef __isnan
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#define isnan(__x) __isnan(__x)
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#else
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#define isnan(__x) __fpmacro_unary_floating(isnan, __x)
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#endif
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/*@)*/
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/*#############################################################
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* ISO C95
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*/
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/**@{
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Double, float, and long double versions, respectively, of HUGE_VAL.
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*/
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#define HUGE_VAL __infinity.__val
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#define HUGE_VALF __infinityf.__val
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#define HUGE_VALL __infinityl.__val
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/*@)*/
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||||
|
||||
__BEGIN_DECLS
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||||
/*
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||||
* ANSI/POSIX
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||||
*/
|
||||
/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */
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extern const union __double_u __infinity;
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#define HUGE_VAL __infinity.__val
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/** Compute the principal value of the arc cosine of Arg.
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|
||||
@param[in] Arg The value to compute the arc cosine of.
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||||
|
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@return The computed value of the arc cosine of Arg in the interval [0,pi] radians.
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If Arg is not in the interval [-1,+1], errno is set to EDOM.
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**/
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double acos(double Arg);
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|
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/** Compute the principal value of the arc sine of Arg.
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@param[in] Arg The value to compute the arc sine of.
|
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|
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@return The computed value of the arc sine of Arg in the interval [-pi/2,+pi/2] radians.
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If Arg is not in the interval [-1,+1], errno is set to EDOM.
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**/
|
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double asin(double Arg);
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|
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/** Compute the principal value of the arc tangent of Arg.
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|
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@param[in] Arg The value to compute the arc tangent of.
|
||||
|
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@return The computed value of the arc tangent of Arg in the interval [-pi/2,+pi/2] radians.
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||||
**/
|
||||
double atan(double Arg);
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||||
|
||||
/** Compute the value of the arc tangent of (Num / Denom).
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The sign of both arguments is used to determine the quadrant of the return value.
|
||||
|
||||
@param[in] Num The numerator of the value to compute the arc tangent of.
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||||
@param[in] Denom The denominator of the value to compute the arc tangent of.
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||||
|
||||
@return The computed value of the arc tangent of (Num / Denom) in the interval [-pi,+pi] radians.
|
||||
**/
|
||||
double atan2(double Num, double Denom);
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||||
|
||||
/** Compute the value of the cosine of Arg, measured in radians.
|
||||
|
||||
@param[in] Arg The value to compute the cosine of.
|
||||
|
||||
@return The computed value of the cosine of Arg.
|
||||
**/
|
||||
double cos(double Arg);
|
||||
|
||||
/** Compute the value of the sine of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the sine of.
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||||
|
||||
@return The computed value of the sine of Arg.
|
||||
**/
|
||||
double sin(double Arg);
|
||||
|
||||
/** Compute the value of the tangent of Arg.
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||||
|
||||
@param[in] Arg The value to compute the tangent of.
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||||
|
||||
@return The computed value of the tangent of Arg.
|
||||
**/
|
||||
double tan(double Arg);
|
||||
|
||||
|
||||
/** Compute the value of the hyperbolic cosine of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the hyperbolic cosine of.
|
||||
|
||||
@return The computed value of the hyperbolic cosine of Arg.
|
||||
If the magnitude of Arg is too large, errno is set to ERANGE.
|
||||
**/
|
||||
double cosh(double Arg);
|
||||
|
||||
/** Compute the value of the hyperbolic sine of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the hyperbolic sine of.
|
||||
|
||||
@return The computed value of the hyperbolic sine of Arg.
|
||||
If the magnitude of Arg is too large, errno is set to ERANGE.
|
||||
**/
|
||||
double sinh(double Arg);
|
||||
|
||||
/** Compute the value of the hyperbolic tangent of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the hyperbolic tangent of.
|
||||
|
||||
@return The computed value of the hyperbolic tangent of Arg.
|
||||
**/
|
||||
double tanh(double Arg);
|
||||
|
||||
|
||||
/** Compute the base-e exponential of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the base-e exponential of.
|
||||
|
||||
@return The computed value of e**Arg.
|
||||
If the magnitude of Arg is too large, errno is set to ERANGE.
|
||||
**/
|
||||
double exp(double Arg);
|
||||
|
||||
/** Break a floating-point number into a normalized fraction and an integral power of 2.
|
||||
|
||||
@param[in] Value The floating-point value to be broken down.
|
||||
@param[out] Exp A pointer to an integer object to receive the integral power of 2 exponent.
|
||||
|
||||
@return The frexp function returns a value R, such that Value == R**Exp.
|
||||
If Value is zero, both parts of the result are zero.
|
||||
**/
|
||||
double frexp(double Value, int *Exp);
|
||||
|
||||
/** Multiply a floating-point number, Value, by an integral power of 2, Exp.
|
||||
|
||||
@param[in] Value The floating-point value to be multiplied.
|
||||
@param[out] Exp The integral power of 2 to multiply Value by.
|
||||
|
||||
@return The ldexp function returns a value R, such that R = Value x 2**Exp.
|
||||
If a range error occurs, errno will be set to ERANGE.
|
||||
**/
|
||||
double ldexp(double Value, int Exp);
|
||||
|
||||
/** Compute the natural logarithm of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the natural logarithm of.
|
||||
|
||||
@return The log function returns log base-e of Arg. If Arg is negative, errno is set to EDOM.
|
||||
Otherwise, errno will be set to ERANGE if a range error occurs.
|
||||
**/
|
||||
double log(double Arg);
|
||||
|
||||
/** Compute the common (base-10) logarithm of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the common logarithm of.
|
||||
|
||||
@return The log10 function returns log base-10 of Arg. If Arg is negative, errno is set to EDOM.
|
||||
Otherwise, errno will be set to ERANGE if Arg is 0.
|
||||
**/
|
||||
double log10(double Arg);
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||||
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||||
/** Compute the base-2 logarithm of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the base-2 logarithm of.
|
||||
|
||||
@return The log function returns log base-2 of Arg. If Arg is negative, errno is set to EDOM.
|
||||
Otherwise, errno will be set to ERANGE if Arg is 0.
|
||||
**/
|
||||
double log2(double Arg);
|
||||
|
||||
/** Break Value into integral and fractional parts, each of which has the same type and sign
|
||||
as Value. Store the integral part in the object pointed to by Integ and return the
|
||||
fractional part.
|
||||
|
||||
@param[in] Value The value to compute the arc cosine of.
|
||||
@param[out] Integ Pointer to where the integral component is to be stored.
|
||||
|
||||
@return The fractional part of Value is returned directly while the integral part is
|
||||
returned in the location pointed to by Integ.
|
||||
**/
|
||||
double modf(double Value, double *Integ);
|
||||
|
||||
/** Compute Value raised to the power Exp.
|
||||
|
||||
@param[in] Value The value to be raised.
|
||||
@param[in] Exp The power Value is to be raised to.
|
||||
|
||||
@return The pow function returns Value**Exp. If an error occurs, errno will be set as follows:
|
||||
- EDOM: Value is finite and negative and Exp is finite and not an integer.
|
||||
- EDOM: Both Value and Exp are zero.
|
||||
- EDOM: Value is zero and Exp is less than zero.
|
||||
**/
|
||||
double pow(double Value, double Exp);
|
||||
|
||||
/** Compute the non-negative square root of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the square root of.
|
||||
|
||||
@return The square root of Arg. If Arg is less than zero, errno is set to EDOM.
|
||||
**/
|
||||
double sqrt(double Arg);
|
||||
|
||||
|
||||
/** Compute the smallest integer value not less than Arg.
|
||||
|
||||
@param[in] Arg The value to compute the ceiling of.
|
||||
|
||||
@return The ceiling of Arg expressed as a floating-point number.
|
||||
**/
|
||||
double ceil(double Arg);
|
||||
|
||||
/** Compute the absolute value of Arg.
|
||||
|
||||
@param[in] Arg The value to compute the absolute value of.
|
||||
|
||||
@return The absolute value of Arg.
|
||||
**/
|
||||
double fabs(double Arg);
|
||||
|
||||
/** Compute the largest integer value not greater than Arg.
|
||||
|
||||
@param[in] Arg The value to compute the floor of.
|
||||
|
||||
@return The largest integer value not greater than Arg, expressed as a floating-point number.
|
||||
**/
|
||||
double floor(double);
|
||||
|
||||
/** Compute the floating-point remainder of A1 / A2.
|
||||
|
||||
@param[in] A1 The dividend.
|
||||
@param[in] A2 The divisor.
|
||||
|
||||
@return The remainder of A1 / A2 with the same sign as A1. If A2 is zero, the fmod function
|
||||
returns 0.
|
||||
**/
|
||||
double fmod(double A1, double A2);
|
||||
|
||||
|
||||
int finite(double);
|
||||
double expm1(double);
|
||||
|
||||
/**@{
|
||||
C99, Posix, or NetBSD functions that are not part of the C95 specification.
|
||||
**/
|
||||
/*
|
||||
* Functions callable from C, intended to support IEEE arithmetic.
|
||||
*/
|
||||
double copysign(double, double);
|
||||
double scalbn(double, int);
|
||||
|
||||
/*
|
||||
* ISO C99
|
||||
* Library implementation
|
||||
*/
|
||||
/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */
|
||||
extern const union __float_u __infinityf;
|
||||
#define HUGE_VALF __infinityf.__val
|
||||
int __fpclassifyf(float);
|
||||
int __fpclassifyd(double);
|
||||
int __isinff(float);
|
||||
int __isinfd(double);
|
||||
int __isnanf(float);
|
||||
int __isnand(double);
|
||||
|
||||
extern const union __long_double_u __infinityl;
|
||||
#define HUGE_VALL __infinityl.__val
|
||||
#ifdef __HAVE_LONG_DOUBLE
|
||||
int __fpclassifyl(long double);
|
||||
int __isinfl(long double);
|
||||
int __isnanl(long double);
|
||||
#endif /* __HAVE_LONG_DOUBLE */
|
||||
/*@}*/
|
||||
|
||||
/* 7.12#4 INFINITY */
|
||||
#ifdef __INFINITY
|
||||
#define INFINITY __INFINITY /* float constant which overflows */
|
||||
#else
|
||||
#define INFINITY HUGE_VALF /* positive infinity */
|
||||
#endif /* __INFINITY */
|
||||
__END_DECLS
|
||||
|
||||
/* 7.12#5 NAN: a quiet NaN, if supported */
|
||||
#ifdef __HAVE_NANF
|
||||
extern const union __float_u __nanf;
|
||||
#define NAN __nanf.__val
|
||||
#endif /* __HAVE_NANF */
|
||||
|
||||
/* 7.12#6 number classification macros */
|
||||
#define FP_INFINITE 0x00
|
||||
#define FP_NAN 0x01
|
||||
#define FP_NORMAL 0x02
|
||||
#define FP_SUBNORMAL 0x03
|
||||
#define FP_ZERO 0x04
|
||||
/* NetBSD extensions */
|
||||
#define _FP_LOMD 0x80 /* range for machine-specific classes */
|
||||
#define _FP_HIMD 0xff
|
||||
|
||||
/*
|
||||
* XOPEN/SVID
|
||||
*/
|
||||
#define M_E 2.7182818284590452354 /* e */
|
||||
#define M_LOG2E 1.4426950408889634074 /* log 2e */
|
||||
#define M_LOG10E 0.43429448190325182765 /* log 10e */
|
||||
#define M_LN2 0.69314718055994530942 /* log e2 */
|
||||
#define M_LN10 2.30258509299404568402 /* log e10 */
|
||||
#define M_PI 3.14159265358979323846 /* pi */
|
||||
#define M_PI_2 1.57079632679489661923 /* pi/2 */
|
||||
#define M_PI_4 0.78539816339744830962 /* pi/4 */
|
||||
#define M_1_PI 0.31830988618379067154 /* 1/pi */
|
||||
#define M_2_PI 0.63661977236758134308 /* 2/pi */
|
||||
#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
|
||||
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
|
||||
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
|
||||
|
||||
#define MAXFLOAT ((float)3.40282346638528860e+38)
|
||||
/**@{
|
||||
Extensions provided by NetBSD but not required by the C95 standard.
|
||||
**/
|
||||
extern int signgam;
|
||||
|
||||
enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
|
||||
@ -120,7 +356,7 @@ enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
|
||||
#define _LIB_VERSION_TYPE enum fdversion
|
||||
#define _LIB_VERSION _fdlib_version
|
||||
|
||||
/* if global variable _LIB_VERSION is not desirable, one may
|
||||
/** If global variable _LIB_VERSION is not desirable, one may
|
||||
* change the following to be a constant by:
|
||||
* #define _LIB_VERSION_TYPE const enum version
|
||||
* In that case, after one initializes the value _LIB_VERSION (see
|
||||
@ -146,11 +382,7 @@ struct exception {
|
||||
|
||||
#define HUGE MAXFLOAT
|
||||
|
||||
/*
|
||||
* set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
|
||||
* (one may replace the following line by "#include <values.h>")
|
||||
*/
|
||||
|
||||
/** set X_TLOSS = pi*2**52 **/
|
||||
#define X_TLOSS 1.41484755040568800000e+16
|
||||
|
||||
#define DOMAIN 1
|
||||
@ -159,295 +391,52 @@ struct exception {
|
||||
#define UNDERFLOW 4
|
||||
#define TLOSS 5
|
||||
#define PLOSS 6
|
||||
/*@}*/
|
||||
|
||||
|
||||
__BEGIN_DECLS
|
||||
/*
|
||||
* ANSI/POSIX
|
||||
*/
|
||||
double acos(double);
|
||||
double asin(double);
|
||||
double atan(double);
|
||||
double atan2(double, double);
|
||||
double cos(double);
|
||||
double sin(double);
|
||||
double tan(double);
|
||||
|
||||
double cosh(double);
|
||||
double sinh(double);
|
||||
double tanh(double);
|
||||
|
||||
double exp(double);
|
||||
double frexp(double, int *);
|
||||
double ldexp(double, int);
|
||||
double log(double);
|
||||
double log2(double);
|
||||
double log10(double);
|
||||
double modf(double, double *);
|
||||
|
||||
double pow(double, double);
|
||||
double sqrt(double);
|
||||
|
||||
double ceil(double);
|
||||
double fabs(double);
|
||||
double floor(double);
|
||||
double fmod(double, double);
|
||||
|
||||
//#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
|
||||
//double erf(double);
|
||||
//double erfc(double);
|
||||
//double gamma(double);
|
||||
//double hypot(double, double);
|
||||
int finite(double);
|
||||
//double j0(double);
|
||||
//double j1(double);
|
||||
//double jn(int, double);
|
||||
//double lgamma(double);
|
||||
//double y0(double);
|
||||
//double y1(double);
|
||||
//double yn(int, double);
|
||||
|
||||
//#if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
|
||||
//double acosh(double);
|
||||
//double asinh(double);
|
||||
//double atanh(double);
|
||||
//double cbrt(double);
|
||||
double expm1(double);
|
||||
//int ilogb(double);
|
||||
//double log1p(double);
|
||||
//double logb(double);
|
||||
//double nextafter(double, double);
|
||||
//double remainder(double, double);
|
||||
//double rint(double);
|
||||
//double scalb(double, double);
|
||||
//#endif /* (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)*/
|
||||
//#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */
|
||||
|
||||
/* 7.12.3.1 int fpclassify(real-floating x) */
|
||||
#define fpclassify(__x) __fpmacro_unary_floating(fpclassify, __x)
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* ISO C99
|
||||
*/
|
||||
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
||||
!defined(_XOPEN_SOURCE) || \
|
||||
((__STDC_VERSION__ - 0) >= 199901L) || \
|
||||
((_POSIX_C_SOURCE - 0) >= 200112L) || \
|
||||
((_XOPEN_SOURCE - 0) >= 600) || \
|
||||
defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
|
||||
|
||||
/* 7.12.3.2 int isfinite(real-floating x) */
|
||||
#define isfinite(__x) __fpmacro_unary_floating(isfinite, __x)
|
||||
|
||||
/* 7.12.3.5 int isnormal(real-floating x) */
|
||||
#define isnormal(__x) (fpclassify(__x) == FP_NORMAL)
|
||||
|
||||
/* 7.12.3.6 int signbit(real-floating x) */
|
||||
#define signbit(__x) __fpmacro_unary_floating(signbit, __x)
|
||||
|
||||
/* 7.12.4 trigonometric */
|
||||
|
||||
float acosf(float);
|
||||
float asinf(float);
|
||||
float atanf(float);
|
||||
float atan2f(float, float);
|
||||
float cosf(float);
|
||||
float sinf(float);
|
||||
float tanf(float);
|
||||
|
||||
/* 7.12.5 hyperbolic */
|
||||
|
||||
float acoshf(float);
|
||||
float asinhf(float);
|
||||
float atanhf(float);
|
||||
float coshf(float);
|
||||
float sinhf(float);
|
||||
float tanhf(float);
|
||||
|
||||
/* 7.12.6 exp / log */
|
||||
|
||||
float expf(float);
|
||||
float expm1f(float);
|
||||
float frexpf(float, int *);
|
||||
int ilogbf(float);
|
||||
float ldexpf(float, int);
|
||||
float logf(float);
|
||||
float log2f(float);
|
||||
float log10f(float);
|
||||
float log1pf(float);
|
||||
float logbf(float);
|
||||
float modff(float, float *);
|
||||
float scalbnf(float, int);
|
||||
|
||||
/* 7.12.7 power / absolute */
|
||||
|
||||
float cbrtf(float);
|
||||
float fabsf(float);
|
||||
float hypotf(float, float);
|
||||
float powf(float, float);
|
||||
float sqrtf(float);
|
||||
|
||||
/* 7.12.8 error / gamma */
|
||||
|
||||
float erff(float);
|
||||
float erfcf(float);
|
||||
float lgammaf(float);
|
||||
|
||||
/* 7.12.9 nearest integer */
|
||||
|
||||
float ceilf(float);
|
||||
float floorf(float);
|
||||
float rintf(float);
|
||||
double round(double);
|
||||
float roundf(float);
|
||||
double trunc(double);
|
||||
float truncf(float);
|
||||
long int lrint(double);
|
||||
long int lrintf(float);
|
||||
/* LONGLONG */
|
||||
long long int llrint(double);
|
||||
/* LONGLONG */
|
||||
long long int llrintf(float);
|
||||
long int lround(double);
|
||||
long int lroundf(float);
|
||||
/* LONGLONG */
|
||||
long long int llround(double);
|
||||
/* LONGLONG */
|
||||
long long int llroundf(float);
|
||||
|
||||
/* 7.12.10 remainder */
|
||||
|
||||
float fmodf(float, float);
|
||||
float remainderf(float, float);
|
||||
|
||||
/* 7.2.11 manipulation */
|
||||
|
||||
float copysignf(float, float);
|
||||
double nan(const char *);
|
||||
float nanf(const char *);
|
||||
long double nanl(const char *);
|
||||
float nextafterf(float, float);
|
||||
|
||||
|
||||
#endif /* !_ANSI_SOURCE && ... */
|
||||
|
||||
#if defined(_NETBSD_SOURCE)
|
||||
#ifndef __cplusplus
|
||||
int matherr(struct exception *);
|
||||
#endif
|
||||
#endif /* _NETBSD_SOURCE */
|
||||
|
||||
/*
|
||||
* IEEE Test Vector
|
||||
*/
|
||||
double significand(double);
|
||||
#endif /* if 0 */
|
||||
|
||||
/* 7.12.3.3 int isinf(real-floating x) */
|
||||
#ifdef __isinf
|
||||
#define isinf(__x) __isinf(__x)
|
||||
/* 7.12#4 INFINITY */
|
||||
#ifdef __INFINITY
|
||||
#define INFINITY __INFINITY /**< float constant which overflows */
|
||||
#else
|
||||
#define isinf(__x) __fpmacro_unary_floating(isinf, __x)
|
||||
#endif
|
||||
#define INFINITY HUGE_VALF /**< positive infinity */
|
||||
#endif /* __INFINITY */
|
||||
|
||||
/* 7.12.3.4 int isnan(real-floating x) */
|
||||
#ifdef __isnan
|
||||
#define isnan(__x) __isnan(__x)
|
||||
#else
|
||||
#define isnan(__x) __fpmacro_unary_floating(isnan, __x)
|
||||
#endif
|
||||
/* 7.12#5 NAN: a quiet NaN, if supported */
|
||||
#ifdef __HAVE_NANF
|
||||
extern const union __float_u __nanf;
|
||||
#define NAN __nanf.__val
|
||||
#endif /* __HAVE_NANF */
|
||||
|
||||
/*
|
||||
* Functions callable from C, intended to support IEEE arithmetic.
|
||||
/**@{
|
||||
C99 7.12#6 Number classification macros represent mutually exclusive kinds of floating-point
|
||||
values.
|
||||
**/
|
||||
#define FP_INFINITE 0x00
|
||||
#define FP_NAN 0x01
|
||||
#define FP_NORMAL 0x02
|
||||
#define FP_SUBNORMAL 0x03
|
||||
#define FP_ZERO 0x04
|
||||
/* NetBSD extensions */
|
||||
#define _FP_LOMD 0x80 /**< range for machine-specific classes */
|
||||
#define _FP_HIMD 0xff
|
||||
/*@)*/
|
||||
|
||||
/**@{
|
||||
* Constants ala XOPEN/SVID.
|
||||
*/
|
||||
double copysign(double, double);
|
||||
double scalbn(double, int);
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* BSD math library entry points
|
||||
*/
|
||||
#ifndef __MATH_PRIVATE__
|
||||
double cabs(/* struct complex { double r; double i; } */);
|
||||
#endif
|
||||
double drem(double, double);
|
||||
|
||||
|
||||
#if defined(_NETBSD_SOURCE) || defined(_REENTRANT)
|
||||
/*
|
||||
* Reentrant version of gamma & lgamma; passes signgam back by reference
|
||||
* as the second argument; user must allocate space for signgam.
|
||||
*/
|
||||
double gamma_r(double, int *);
|
||||
double lgamma_r(double, int *);
|
||||
#endif /* _NETBSD_SOURCE || _REENTRANT */
|
||||
|
||||
|
||||
#if defined(_NETBSD_SOURCE)
|
||||
|
||||
/* float versions of ANSI/POSIX functions */
|
||||
|
||||
float gammaf(float);
|
||||
int isinff(float);
|
||||
int isnanf(float);
|
||||
int finitef(float);
|
||||
float j0f(float);
|
||||
float j1f(float);
|
||||
float jnf(int, float);
|
||||
float y0f(float);
|
||||
float y1f(float);
|
||||
float ynf(int, float);
|
||||
|
||||
float scalbf(float, float);
|
||||
|
||||
/*
|
||||
* float version of IEEE Test Vector
|
||||
*/
|
||||
float significandf(float);
|
||||
|
||||
/*
|
||||
* float versions of BSD math library entry points
|
||||
*/
|
||||
#ifndef __MATH_PRIVATE__
|
||||
float cabsf(/* struct complex { float r; float i; } */);
|
||||
#endif
|
||||
float dremf(float, float);
|
||||
#endif /* _NETBSD_SOURCE */
|
||||
|
||||
#if defined(_NETBSD_SOURCE) || defined(_REENTRANT)
|
||||
/*
|
||||
* Float versions of reentrant version of gamma & lgamma; passes
|
||||
* signgam back by reference as the second argument; user must
|
||||
* allocate space for signgam.
|
||||
*/
|
||||
float gammaf_r(float, int *);
|
||||
float lgammaf_r(float, int *);
|
||||
#endif /* !... || _REENTRANT */
|
||||
|
||||
#endif /* if 0 */
|
||||
|
||||
///*
|
||||
// * Library implementation
|
||||
// */
|
||||
int __fpclassifyf(float);
|
||||
int __fpclassifyd(double);
|
||||
//int __isfinitef(float);
|
||||
//int __isfinited(double);
|
||||
int __isinff(float);
|
||||
int __isinfd(double);
|
||||
int __isnanf(float);
|
||||
int __isnand(double);
|
||||
//int __signbitf(float);
|
||||
//int __signbitd(double);
|
||||
|
||||
//#ifdef __HAVE_LONG_DOUBLE
|
||||
int __fpclassifyl(long double);
|
||||
//int __isfinitel(long double);
|
||||
int __isinfl(long double);
|
||||
int __isnanl(long double);
|
||||
//int __signbitl(long double);
|
||||
//#endif
|
||||
__END_DECLS
|
||||
#define M_E 2.7182818284590452354 /**< e */
|
||||
#define M_LOG2E 1.4426950408889634074 /**< log 2e */
|
||||
#define M_LOG10E 0.43429448190325182765 /**< log 10e */
|
||||
#define M_LN2 0.69314718055994530942 /**< log e2 */
|
||||
#define M_LN10 2.30258509299404568402 /**< log e10 */
|
||||
#define M_PI 3.14159265358979323846 /**< pi */
|
||||
#define M_PI_2 1.57079632679489661923 /**< pi/2 */
|
||||
#define M_PI_4 0.78539816339744830962 /**< pi/4 */
|
||||
#define M_1_PI 0.31830988618379067154 /**< 1/pi */
|
||||
#define M_2_PI 0.63661977236758134308 /**< 2/pi */
|
||||
#define M_2_SQRTPI 1.12837916709551257390 /**< 2/sqrt(pi) */
|
||||
#define M_SQRT2 1.41421356237309504880 /**< sqrt(2) */
|
||||
#define M_SQRT1_2 0.70710678118654752440 /**< 1/sqrt(2) */
|
||||
#define MAXFLOAT ((float)3.40282346638528860e+38)
|
||||
/*@}*/
|
||||
|
||||
#endif /* _MATH_H_ */
|
||||
|
||||
Reference in New Issue
Block a user