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Arquivotheca.AIX-4.1.3/bos/usr/include/math.h
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/* @(#)30 1.28.1.13 src/bos/usr/include/math.h, libm, bos411, 9428A410j 5/20/94 11:33:42 */
/*
* COMPONENT_NAME: (LIBM) math header file
*
* FUNCTIONS:
*
* ORIGINS: 27
*
* (C) COPYRIGHT International Business Machines Corp. 1985, 1994
* All Rights Reserved
* Licensed Materials - Property of IBM
*
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*/
#ifndef _H_MATH
#define _H_MATH
#ifndef _H_STANDARDS
#include <standards.h>
#endif
/*
* The ANSI standard requires that certain values be in math.h.
* It also requires that if _ANSI_C_SOURCE is defined then ONLY these
* values are present.
*
* This header includes all the ANSI required entries. In addition
* other entries for the AIX system are included.
*
*/
/*
* ANSI required entries in math.h
*
*/
#ifdef _ANSI_C_SOURCE
extern unsigned _DBLINF[2];
#define HUGE_VAL (*((double *)(_DBLINF)))
#ifdef _NO_PROTO
extern double acos();
extern double asin();
extern double atan();
extern double atan2();
extern double ceil();
extern double cos();
extern double cosh();
extern double exp();
extern double fabs();
extern double floor();
extern double fmod();
extern double frexp();
extern double ldexp();
extern double log();
extern double log10();
extern double modf();
extern double pow();
extern double sin();
extern double sinh();
extern double sqrt();
extern double tan();
extern double tanh();
#ifdef __LONGDOUBLE128
long double acosl();
long double asinl();
long double atanl();
long double atan2l();
long double cosl();
long double coshl();
long double sinl();
long double sinhl();
long double tanl();
long double tanhl();
long double expl();
long double frexpl();
long double ldexpl();
long double logl();
long double log10l();
long double modfl();
long double powl();
long double sqrtl();
long double ceill();
long double fabsl();
long double floorl();
long double fmodl();
#endif /* #ifdef __LONGDOUBLE128 */
#else /*_NO_PROTO */ /* Use ANSI C required prototyping */
extern double acos(double);
extern double asin(double);
extern double atan(double);
extern double atan2(double,double);
extern double ceil(double);
extern double cos(double);
extern double cosh(double);
extern double exp(double);
extern double fabs(double);
extern double floor(double);
extern double fmod(double, double);
extern double frexp(double, int *);
extern double ldexp(double, int);
extern double log(double);
extern double log10(double);
extern double modf(double, double *);
extern double pow(double, double);
extern double sin(double);
extern double sinh(double);
extern double sqrt(double);
extern double tan(double);
extern double tanh(double);
#ifdef __LONGDOUBLE128
/*
* The following interfaces are available only for the
* non-default 128-bit long double mode. By default long
* double is the same as double (64-bit) and should use the
* the double precision versions of these routines.
*/
long double acosl(long double);
long double asinl(long double);
long double atanl(long double);
long double atan2l(long double , long double);
long double cosl(long double);
long double coshl(long double);
long double sinl(long double);
long double sinhl(long double);
long double tanl(long double);
long double tanhl(long double);
long double expl(long double);
long double frexpl(long double , /* value */
int *); /* exponent */
long double ldexpl(long double , /* value */
int); /* exponent */
long double logl(long double);
long double log10l(long double);
long double modfl(long double , /* value */
long double *); /* integer part */
long double powl(long double , long double);
long double sqrtl(long double);
long double ceill(long double);
long double fabsl(long double);
long double floorl(long double);
long double fmodl(long double , long double);
#endif /* #ifdef __LONGDOUBLE128 */
#endif /*_NO_PROTO */
/*
* The following macro definitions cause the XLC compiler to inline
* these functions whenever possible. __MATH__ is defined by the compiler.
*/
#ifdef __MATH__
#define acos(__x) __acos(__x)
#define asin(__x) __asin(__x)
#define atan(__x) __atan(__x)
#define atan2(__x,__y) __atan2(__x,__y)
#define cos(__x) __cos(__x)
#define exp(__x) __exp(__x)
#define fabs(__x) __fabs(__x)
#define log(__x) __log(__x)
#define log10(__x) __log10(__x)
#define sin(__x) __sin(__x)
#define sqrt(__x) __sqrt(__x)
#define tan(__x) __tan(__x)
#endif
#endif /*_ANSI_C_SOURCE */
/*
*
* The following function prototypes define functions available in the
* AIX system but not required by the ANSI standard. They will not be
* included in _ANSI_C_SOURCE is defined (strict ANSI conformance).
*
*/
#ifdef _XOPEN_SOURCE
extern int signgam;
/*
* Useful mathmatical constants:
*
* M_E -- e
* M_LOG2E -- log2(e)
* M_LOG10E -- log10(e)
* M_LN2 -- ln(2)
* M_PI -- pi
* M_PI_2 -- pi/2
* M_PI_4 -- pi/4
* M_1_PI -- 1/pi
* M_2_PI -- 2/pi
* M_2_SQRTPI -- 2/(sqrt(pi))
* M_SQRT2 -- sqrt(2)
* M_SQRT1_2 -- 1/sqrt(2)
*
* These constants are provided to more significant digits
* than is necessary for a 64-bit double precision number; they
* may be used for other purposes where the extra precision
* is necessary or useful.
*/
#define M_E 2.71828182845904523536028747135266250
#define M_LOG2E 1.44269504088896340735992468100189214
#define M_LOG10E 0.434294481903251827651128918916605082
#define M_LN2 0.693147180559945309417232121458176568
#define M_LN10 2.30258509299404568401799145468436421
#define M_PI 3.14159265358979323846264338327950288
#define M_PI_2 1.57079632679489661923132169163975144
#define M_PI_4 0.785398163397448309615660845819875721
#define M_1_PI 0.318309886183790671537767526745028724
#define M_2_PI 0.636619772367581343075535053490057448
#define M_2_SQRTPI 1.12837916709551257389615890312154517
#define M_SQRT2 1.41421356237309504880168872420969808
#define M_SQRT1_2 0.707106781186547524400844362104849039
/* MAXFLOAT is also defined in values.h */
#ifndef MAXFLOAT
extern unsigned int _SFPMAX;
#define MAXFLOAT (*((float *) (&_SFPMAX)))
#endif
#ifdef _NO_PROTO
extern double erf();
extern double erfc();
extern int isnan();
extern double hypot();
extern double j0();
extern double j1();
extern double jn();
extern double gamma();
extern double lgamma();
extern double y0();
extern double y1();
extern double yn();
#ifdef __LONGDOUBLE128
long double erfl();
long double erfcl();
long double lgammal();
#endif /* #ifdef __LONGDOUBLE128 */
#else
extern double erf(double);
extern double erfc(double);
extern int isnan(double);
extern double hypot(double,double);
extern double j0(double);
extern double j1(double);
extern double jn(int, double);
extern double gamma(double);
extern double lgamma(double);
extern double y0(double);
extern double y1(double);
extern double yn(int, double);
#ifdef __LONGDOUBLE128
long double erfl(long double);
long double erfcl(long double);
long double lgammal(long double);
#endif /* #ifdef __LONGDOUBLE128 */
#endif /* _NO_PROTO */
#endif /* _XOPEN_SOURCE */
#ifdef _ALL_SOURCE
#define DINFINITY _DBLINF
#ifndef _BSD
#ifndef _H_STDLIB
#include <stdlib.h>
#endif
#else /* _BSD */
/*
* Any changes to the below declaration must be verified with
* changes to the same function declaration in <stdlib.h>
*/
#ifndef _NO_PROTO
extern double atof(const char *);
#else /* _NO_PROTO */
extern double atof();
#endif /* _NO_PROTO */
#endif /* _BSD */
#ifdef _NO_PROTO
extern double acosh();
extern double asinh();
extern double atanh();
extern double cabs();
extern double cbrt();
extern double copysign ();
extern double drem();
extern double exp__E();
extern double expm1();
extern double log1p();
extern double log__L();
extern double logb();
extern double nearest();
extern double nextafter();
extern double remainder();
extern double rint();
extern double rsqrt();
extern double scalb();
extern double trunc();
extern int class();
extern int finite();
extern int ilogb();
extern int itrunc();
extern int unordered();
extern unsigned uitrunc();
#ifdef _POWER
extern int dtoi();
#endif
#else /* _NO_PROTO */ /* Use ANSI C required prototyping */
struct dbl_hypot {
double x, y;
};
extern double acosh(double);
extern double asinh(double);
extern double atanh(double);
extern double cabs(struct dbl_hypot);
extern double cbrt(double);
extern double copysign (double, double);
extern double drem(double, double);
extern double exp__E(double, double);
extern double expm1(double);
extern double log1p(double);
extern double log__L(double);
extern double nearest(double);
extern double remainder(double, double);
extern double rint(double);
extern double rsqrt(double);
extern double scalb(double, double);
extern double trunc(double);
extern int itrunc(double);
extern int unordered(double, double);
extern unsigned uitrunc(double);
#ifdef _POWER
extern int dtoi(double);
/* The POWER wants arguments in both GPR's and FPR's
* By not specifying a prototype of double, the compiler
* will put the argument in both types of registers.
*/
extern double logb();
extern int ilogb();
extern double nextafter();
extern int class();
extern int finite();
#else
extern double logb(double);
extern int ilogb(double);
extern double nextafter(double, double);
extern int class(double);
extern int finite(double);
#endif
#endif /* _NO_PROTO */
struct exception {
int type;
char *name;
double arg1;
double arg2;
double retval;
};
#define DOMAIN 01
#define SING 02
#define OVERFLOW 03
#define UNDERFLOW 04
#define TLOSS 05
#define PLOSS 06
/*
* Useful mathmatical constants:
*
* HUGE - +infinity
* M_2PI - 2*pi
*
*/
#define HUGE HUGE_VAL
#define M_2PI 6.2831853071795862320E0 /*Hex 2^ 2 * 1.921FB54442D18 */
/* This is the nearest number to the cube root of MAXDOUBLE that */
/* doesn't cause the cube of it to overflow. */
/* In double precision hex this constant is: 554428a2 f98d728a */
#define CUBRTHUGE 5.6438030941223618e102
#define INV_CUBRTHUGE 1.7718548704178434e-103
#endif /* ALL_SOURCE */
/*
* 64-bit integer support, known as long long int and unsigned long long int
*/
#if (defined(_LONG_LONG) && defined(_ALL_SOURCE))
#ifdef _NO_PROTO
extern long long int __multi64( );
extern long long int __divi64( );
extern unsigned long long int __divu64( );
extern long long int __maxi64( );
extern long long int __mini64( );
extern long long int __f64toi64rz( );
extern unsigned long long int __f64tou64rz( );
#ifdef __LONGDOUBLE128
extern long long int __f128toi64rz( );
extern unsigned long long int __f128tou64rz( );
#endif /* __LONGDOUBLE128 */
#else /* ifdef _NO_PROTO */
extern long long int __multi64( long long int, long long int );
extern long long int __divi64( long long int, long long int );
extern unsigned long long int __divu64( unsigned long long int,
unsigned long long int );
extern long long int __maxi64( long long int, long long int );
extern long long int __mini64( long long int, long long int );
extern long long int __f64toi64rz( double );
extern unsigned long long int __f64tou64rz( double );
#ifdef __LONGDOUBLE128
extern long long int __f128toi64rz( long double );
extern unsigned long long int __f128tou64rz( long double );
#endif /* __LONGDOUBLE128 */
#endif /* _NO_PROTO */
#endif /* if defined(_LONG_LONG) && defined(_ALL_SOURCE) */
/*
* __XLC121__ is automatically defined by the XLC 1.2.1 compiler so that
* the compiler can inline the following function when possible.
*/
#if (defined (__MATH__) && defined (__XLC121__) && defined (_ALL_SOURCE) )
#define copysign(x,y) __copysign(x,y)
#endif
#endif /*_H_MATH */
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