mirror of
https://github.com/opnsense/src.git
synced 2026-02-13 07:44:48 -05:00
342 lines
8.4 KiB
C
342 lines
8.4 KiB
C
/*
|
|
* ====================================================
|
|
* 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
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MATH_H_
|
|
#define _MATH_H_
|
|
|
|
#include <sys/_types.h>
|
|
|
|
/*
|
|
* ANSI/POSIX
|
|
*/
|
|
extern const union __infinity_un {
|
|
unsigned char __uc[8];
|
|
double __ud;
|
|
} __infinity;
|
|
|
|
extern const union __nan_un {
|
|
unsigned char __uc[sizeof(float)];
|
|
float __uf;
|
|
} __nan;
|
|
|
|
#define FP_ILOGB0 (-0x7fffffff - 1) /* INT_MIN */
|
|
#define FP_ILOGBNAN 0x7fffffff /* INT_MAX */
|
|
#define HUGE_VAL (__infinity.__ud)
|
|
#define HUGE_VALF (float)HUGE_VAL
|
|
#define HUGE_VALL (long double)HUGE_VAL
|
|
#define INFINITY HUGE_VALF
|
|
#define NAN (__nan.__uf)
|
|
|
|
/* Symbolic constants to classify floating point numbers. */
|
|
#define FP_INFINITE 0x01
|
|
#define FP_NAN 0x02
|
|
#define FP_NORMAL 0x04
|
|
#define FP_SUBNORMAL 0x08
|
|
#define FP_ZERO 0x10
|
|
#define fpclassify(x) \
|
|
((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) \
|
|
: (sizeof (x) == sizeof (double)) ? __fpclassifyd(x) \
|
|
: __fpclassifyl(x))
|
|
|
|
#define isfinite(x) ((fpclassify(x) & (FP_INFINITE|FP_NAN)) == 0)
|
|
#define isinf(x) (fpclassify(x) == FP_INFINITE)
|
|
#define isnan(x) (fpclassify(x) == FP_NAN)
|
|
#define isnanf(x) isnan(x)
|
|
#define isnormal(x) (fpclassify(x) == FP_NORMAL)
|
|
|
|
#define isgreater(x, y) (!isunordered((x), (y)) && (x) > (y))
|
|
#define isgreaterequal(x, y) (!isunordered((x), (y)) && (x) >= (y))
|
|
#define isless(x, y) (!isunordered((x), (y)) && (x) < (y))
|
|
#define islessequal(x, y) (!isunordered((x), (y)) && (x) <= (y))
|
|
#define islessgreater(x, y) (!isunordered((x), (y)) && \
|
|
((x) > (y) || (y) > (x)))
|
|
#define isunordered(x, y) (isnan(x) || isnan(y))
|
|
|
|
#define signbit(x) __signbit(x)
|
|
|
|
typedef __double_t double_t;
|
|
typedef __float_t float_t;
|
|
|
|
/*
|
|
* XOPEN/SVID
|
|
*/
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
|
|
#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)
|
|
extern int signgam;
|
|
|
|
#if !defined(_XOPEN_SOURCE)
|
|
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
|
|
* 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
|
|
* s_lib_version.c) during compile time, it cannot be modified
|
|
* in the middle of a program
|
|
*/
|
|
extern _LIB_VERSION_TYPE _LIB_VERSION;
|
|
|
|
#define _IEEE_ fdlibm_ieee
|
|
#define _SVID_ fdlibm_svid
|
|
#define _XOPEN_ fdlibm_xopen
|
|
#define _POSIX_ fdlibm_posix
|
|
|
|
/* We have a problem when using C++ since `exception' is a reserved
|
|
name in C++. */
|
|
#ifndef __cplusplus
|
|
struct exception {
|
|
int type;
|
|
char *name;
|
|
double arg1;
|
|
double arg2;
|
|
double retval;
|
|
};
|
|
#endif
|
|
|
|
#if 0
|
|
/* Old value from 4.4BSD-Lite math.h; this is probably better. */
|
|
#define HUGE HUGE_VAL
|
|
#else
|
|
#define HUGE MAXFLOAT
|
|
#endif
|
|
|
|
/*
|
|
* set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
|
|
* (one may replace the following line by "#include <values.h>")
|
|
*/
|
|
|
|
#define X_TLOSS 1.41484755040568800000e+16
|
|
|
|
#define DOMAIN 1
|
|
#define SING 2
|
|
#define OVERFLOW 3
|
|
#define UNDERFLOW 4
|
|
#define TLOSS 5
|
|
#define PLOSS 6
|
|
|
|
#endif /* !_XOPEN_SOURCE */
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
/*
|
|
* Most of these functions have the side effect of setting errno, so they
|
|
* are not declared as __pure2. (XXX: this point needs to be revisited,
|
|
* since C99 doesn't require the mistake of setting errno, and we mostly
|
|
* don't set it anyway. In C99, pragmas and functions for changing the
|
|
* rounding mode affect the purity of these functions.)
|
|
*/
|
|
__BEGIN_DECLS
|
|
/*
|
|
* ANSI/POSIX
|
|
*/
|
|
int __fpclassifyd(double) __pure2;
|
|
int __fpclassifyf(float) __pure2;
|
|
int __fpclassifyl(long double) __pure2;
|
|
int __signbit(double) __pure2;
|
|
|
|
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 *); /* fundamentally !__pure2 */
|
|
double ldexp(double, int);
|
|
double log(double);
|
|
double log10(double);
|
|
double modf(double, double *); /* fundamentally !__pure2 */
|
|
|
|
double pow(double, double);
|
|
double sqrt(double);
|
|
|
|
double ceil(double);
|
|
double fabs(double);
|
|
double floor(double);
|
|
double fmod(double, double);
|
|
|
|
/*
|
|
* These functions are not in C90 so they can be "right". The ones that
|
|
* never set errno in lib/msun are declared as __pure2.
|
|
*/
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
|
|
double erf(double);
|
|
double erfc(double) __pure2;
|
|
int finite(double) __pure2;
|
|
double gamma(double);
|
|
double hypot(double, 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 !defined(_XOPEN_SOURCE)
|
|
double acosh(double);
|
|
double asinh(double);
|
|
double atanh(double);
|
|
double cbrt(double) __pure2;
|
|
double logb(double) __pure2;
|
|
double nextafter(double, double);
|
|
double remainder(double, double);
|
|
double scalb(double, double);
|
|
double tgamma(double);
|
|
|
|
#ifndef __cplusplus
|
|
int matherr(struct exception *);
|
|
#endif
|
|
|
|
/*
|
|
* IEEE Test Vector
|
|
*/
|
|
double significand(double);
|
|
|
|
/*
|
|
* Functions callable from C, intended to support IEEE arithmetic.
|
|
*/
|
|
double copysign(double, double) __pure2;
|
|
int ilogb(double);
|
|
double rint(double) __pure2;
|
|
double scalbn(double, int);
|
|
|
|
/*
|
|
* BSD math library entry points
|
|
*/
|
|
double drem(double, double);
|
|
double expm1(double) __pure2;
|
|
double log1p(double) __pure2;
|
|
|
|
/*
|
|
* Reentrant version of gamma & lgamma; passes signgam back by reference
|
|
* as the second argument; user must allocate space for signgam.
|
|
*/
|
|
#if __BSD_VISIBLE
|
|
double gamma_r(double, int *);
|
|
double lgamma_r(double, int *);
|
|
#endif /* __BSD_VISIBLE */
|
|
|
|
/* float versions of ANSI/POSIX functions */
|
|
float acosf(float);
|
|
float asinf(float);
|
|
float atanf(float);
|
|
float atan2f(float, float);
|
|
float cosf(float);
|
|
float sinf(float);
|
|
float tanf(float);
|
|
|
|
float coshf(float);
|
|
float sinhf(float);
|
|
float tanhf(float);
|
|
|
|
float expf(float);
|
|
float frexpf(float, int *); /* fundamentally !__pure2 */
|
|
float ldexpf(float, int);
|
|
float logf(float);
|
|
float log10f(float);
|
|
float modff(float, float *); /* fundamentally !__pure2 */
|
|
|
|
float powf(float, float);
|
|
float sqrtf(float);
|
|
|
|
float ceilf(float);
|
|
float fabsf(float);
|
|
float floorf(float);
|
|
float fmodf(float, float);
|
|
|
|
float erff(float);
|
|
float erfcf(float) __pure2;
|
|
int finitef(float) __pure2;
|
|
float gammaf(float);
|
|
float hypotf(float, float) __pure2;
|
|
float j0f(float);
|
|
float j1f(float);
|
|
float jnf(int, float);
|
|
float lgammaf(float);
|
|
float y0f(float);
|
|
float y1f(float);
|
|
float ynf(int, float);
|
|
|
|
float acoshf(float);
|
|
float asinhf(float);
|
|
float atanhf(float);
|
|
float cbrtf(float) __pure2;
|
|
float logbf(float) __pure2;
|
|
float nextafterf(float, float);
|
|
float remainderf(float, float);
|
|
float scalbf(float, float);
|
|
|
|
/*
|
|
* float version of IEEE Test Vector
|
|
*/
|
|
float significandf(float);
|
|
|
|
/*
|
|
* Float versions of functions callable from C, intended to support
|
|
* IEEE arithmetic.
|
|
*/
|
|
float copysignf(float, float) __pure2;
|
|
int ilogbf(float);
|
|
float rintf(float);
|
|
float scalbnf(float, int);
|
|
|
|
/*
|
|
* float versions of BSD math library entry points
|
|
*/
|
|
float dremf(float, float);
|
|
float expm1f(float) __pure2;
|
|
float log1pf(float) __pure2;
|
|
|
|
/*
|
|
* Float versions of reentrant version of gamma & lgamma; passes
|
|
* signgam back by reference as the second argument; user must
|
|
* allocate space for signgam.
|
|
*/
|
|
#if __BSD_VISIBLE
|
|
float gammaf_r(float, int *);
|
|
float lgammaf_r(float, int *);
|
|
#endif /* __BSD_VISIBLE */
|
|
|
|
#endif /* !_XOPEN_SOURCE */
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
|
|
__END_DECLS
|
|
|
|
#endif /* !_MATH_H_ */
|