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MATH.H
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C/C++ Source or Header
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1996-11-06
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4KB
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129 lines
/*
* math.h Math functions
*
* Copyright by WATCOM International Corp. 1988-1996. All rights reserved.
*/
#ifndef _MATH_H_INCLUDED
#define _MATH_H_INCLUDED
#if !defined(_ENABLE_AUTODEPEND)
#pragma read_only_file;
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _COMDEF_H_INCLUDED
#include <_comdef.h>
#endif
#if defined(_M_IX86)
#pragma pack(__push,1);
#else
#pragma pack(__push,8);
#endif
#if defined(__FUNCTION_DATA_ACCESS)
#define _HugeValue (*__get_HugeValue_ptr())
#elif defined(__SW_BR) || defined(_RTDLL)
#define _HugeValue _HugeValue_br
#endif
_WCRTLINK extern const double _WCDATA _HugeValue;
#define HUGE_VAL _HugeValue
_WMRTLINK extern double ceil( double __x );
_WMRTLINK extern double floor( double __x );
_WMRTLINK extern double frexp( double __value, int *__exp );
_WMRTLINK extern double ldexp( double __x, int __exp );
_WMRTLINK extern double modf( double __value, double *__iptr );
_WMIRTLINK extern double acos( double __x );
_WMIRTLINK extern double asin( double __x );
_WMIRTLINK extern double atan( double __x );
_WMIRTLINK extern double atan2( double __y, double __x );
_WMIRTLINK extern double cos( double __x );
_WMIRTLINK extern double cosh( double __x );
_WMIRTLINK extern double exp( double __x );
_WMIRTLINK extern double fabs( double __x );
_WMIRTLINK extern double fmod( double __x, double __y );
_WMIRTLINK extern double log( double __x );
_WMIRTLINK extern double log10( double __x );
_WMIRTLINK extern double pow( double __x, double __y );
_WMIRTLINK extern double sin( double __x );
_WMIRTLINK extern double sinh( double __x );
_WMIRTLINK extern double sqrt( double __x );
_WMIRTLINK extern double tan( double __x );
_WMIRTLINK extern double tanh( double __x );
/* non-ANSI */
#if !defined(NO_EXT_KEYS) /* extensions enabled */
struct _complex {
double x;
double y;
};
#ifndef __cplusplus
struct complex {
double x;
double y;
};
#endif
_WMRTLINK extern double acosh( double __x );
_WMRTLINK extern double asinh( double __x );
_WMRTLINK extern double atanh( double __x );
_WMRTLINK extern double cabs( struct _complex );
_WMRTLINK extern double hypot( double __x, double __y );
_WMRTLINK extern double j0( double __x );
_WMRTLINK extern double j1( double __x );
_WMRTLINK extern double jn( int __n, double __x );
_WMRTLINK extern double log2( double __x );
_WMRTLINK extern double y0( double __x );
_WMRTLINK extern double y1( double __x );
_WMRTLINK extern double yn( int __n, double __x );
/* The following struct is used to record errors detected in the math library.
* matherr is called with a pointer to this struct for possible error recovery.
*/
struct _exception {
int type; /* type of error, see below */
char *name; /* name of math function */
double arg1; /* value of first argument to function */
double arg2; /* second argument (if indicated) */
double retval; /* default return value */
};
#ifndef __cplusplus
struct exception {
int type; /* type of error, see below */
char *name; /* name of math function */
double arg1; /* value of first argument to function */
double arg2; /* second argument (if indicated) */
double retval; /* default return value */
};
#endif
#define DOMAIN 1 /* argument domain error */
#define SING 2 /* argument singularity */
#define OVERFLOW 3 /* overflow range error */
#define UNDERFLOW 4 /* underflow range error */
#define TLOSS 5 /* total loss of significance */
#define PLOSS 6 /* partial loss of significance */
_WMRTLINK extern int matherr( struct _exception * );
_WMRTLINK extern double _matherr( struct _exception * );
#endif /* EXTENSIONS */
#if !defined( __NO_MATH_OPS ) && defined(_M_IX86)
/*
Defining the __NO_MATH_OPS macro will stop the compiler from recogizing
the following functions as intrinsic operators.
*/
#pragma intrinsic(log,cos,sin,tan,sqrt,fabs,pow,atan2,fmod)
#pragma intrinsic(acos,asin,atan,cosh,exp,log10,sinh,tanh)
#endif
#pragma pack(__pop);
#ifdef __cplusplus
};
#endif
#endif