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PC World Komputer 1998 May
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Borland
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Cplus45
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BC45
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INC.PAK
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BCD.H
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1995-08-29
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/* bcd.h
BCD Number Library - Include File
class bcd: declarations for decimal numbers.
*/
/*
* C/C++ Run Time Library - Version 6.5
*
* Copyright (c) 1987, 1994 by Borland International
* All Rights Reserved.
*
*/
#ifndef __cplusplus
#error Must use C++ for the type bcd.
#endif
#if !defined(__BCD_H)
#define __BCD_H
#if !defined(___DEFS_H)
#include <_defs.h>
#endif
#if !defined(__MATH_H)
#include <math.h>
#endif
#if !defined(__IOSTREAM_H)
#include <iostream.h>
#endif
#if !defined(RC_INVOKED)
#pragma option -a-
#if defined(__BCOPT__)
#if !defined(_RTL_ALLOW_po) && !defined(__FLAT__)
#pragma option -po- // disable Object data calling convention
#endif
#endif
#pragma option -Vo-
#if defined(__STDC__)
#pragma warn -nak
#endif
#endif /* !RC_INVOKED */
#define _BcdMaxDecimals 5000
_CLASSDEF(bcd)
class _EXPCLASS bcd {
public:
// constructors
_RTLENTRY bcd();
_RTLENTRY bcd(int x);
_RTLENTRY bcd(unsigned int x);
_RTLENTRY bcd(long x);
_RTLENTRY bcd(unsigned long x);
_RTLENTRY bcd(double x, int decimals = _BcdMaxDecimals);
_RTLENTRY bcd(long double x, int decimals = _BcdMaxDecimals);
// bcd manipulations
friend long double _RTLENTRY real(bcd _FAR &); // Return the real part
// Overloaded ANSI C math functions
friend bcd _RTLENTRY _EXPFUNC abs(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC acos(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC asin(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC atan(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC cos(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC cosh(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC exp(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC log(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC log10(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC pow(bcd _FAR & base, bcd _FAR & expon);
friend bcd _RTLENTRY _EXPFUNC sin(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC sinh(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC sqrt(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC tan(bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC tanh(bcd _FAR &);
// Binary Operator Functions
friend bcd _RTLENTRY _EXPFUNC operator+(bcd _FAR &, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator+(long double, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator+(bcd _FAR &, long double);
friend bcd _RTLENTRY _EXPFUNC operator-(bcd _FAR &, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator-(long double, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator-(bcd _FAR &, long double);
friend bcd _RTLENTRY _EXPFUNC operator*(bcd _FAR &, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator*(bcd _FAR &, long double);
friend bcd _RTLENTRY _EXPFUNC operator*(long double, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator/(bcd _FAR &, bcd _FAR &);
friend bcd _RTLENTRY _EXPFUNC operator/(bcd _FAR &, long double);
friend bcd _RTLENTRY _EXPFUNC operator/(long double, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator==(bcd _FAR &, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator!=(bcd _FAR &, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator>=(bcd _FAR &, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator<=(bcd _FAR &, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator>(bcd _FAR &, bcd _FAR &);
friend int _RTLENTRY _EXPFUNC operator<(bcd _FAR &, bcd _FAR &);
bcd _FAR & _RTLENTRY operator+=(bcd _FAR &);
bcd _FAR & _RTLENTRY operator+=(long double);
bcd _FAR & _RTLENTRY operator-=(bcd _FAR &);
bcd _FAR & _RTLENTRY operator-=(long double);
bcd _FAR & _RTLENTRY operator*=(bcd _FAR &);
bcd _FAR & _RTLENTRY operator*=(long double);
bcd _FAR & _RTLENTRY operator/=(bcd _FAR &);
bcd _FAR & _RTLENTRY operator/=(long double);
bcd _RTLENTRY operator+();
bcd _RTLENTRY operator-();
// Implementation
private:
long mantissa[2];
int expo;
};
// const bcd _bcd_zero(0);
enum _bcdexpo {
_ExpoZero,
_ExpoInf,
_ExpoNan
};
extern "C"
{
#if defined(__FLAT__)
long double _RTLENTRY _EXPFUNC __bcd_tobinary (const bcd *p);
void _RTLENTRY _EXPFUNC __bcd_todecimal(long double x, int decimals, bcd *p);
long double _RTLENTRY _EXPFUNC __bcd_log10 (bcd *p);
void _RTLENTRY _EXPFUNC __bcd_pow10 (int n, bcd *p);
#else
long double __pascal _EXPFUNC __bcd_tobinary(const bcd __far *p);
void __pascal _EXPFUNC __bcd_todecimal(long double x, int decimals, bcd __far *p);
long double __pascal _EXPFUNC __bcd_log10(bcd __far *p);
void __pascal _EXPFUNC __bcd_pow10(int n, bcd __far *p);
#endif
}
inline _RTLENTRY bcd::bcd()
{
/* if you want zero ...
mantissa[0] = 0;
mantissa[1] = 0;
expo = ExpoZero;
*/
}
inline _RTLENTRY bcd::bcd(long double x, int decimals)
{
__bcd_todecimal(x,decimals,this);
}
inline _RTLENTRY bcd::bcd(double x, int decimals)
{
__bcd_todecimal(x,decimals,this);
}
inline _RTLENTRY bcd::bcd(int x)
{
mantissa[0] = x;
mantissa[1] = x >= 0 ? 0 : -1;
expo = 0;
}
inline _RTLENTRY bcd::bcd(unsigned int x)
{
mantissa[0] = x;
mantissa[1] = 0;
expo = 0;
}
inline _RTLENTRY bcd::bcd(long x)
{
mantissa[0] = x;
mantissa[1] = x >= 0 ? 0 : -1;
expo = 0;
}
inline _RTLENTRY bcd::bcd(unsigned long x)
{
mantissa[0] = x;
mantissa[1] = 0;
expo = 0;
}
inline long double _RTLENTRY real(bcd _FAR &z)
{
return __bcd_tobinary(&z);
}
// Definitions of compound-assignment operator member functions
inline bcd& _RTLENTRY bcd::operator+=(bcd _FAR &b)
{
__bcd_todecimal(real(*this)+real(b),_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator+=(long double b)
{
__bcd_todecimal(real(*this)+b,_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator-=(bcd _FAR &b)
{
__bcd_todecimal(real(*this)-real(b),_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator-=(long double b)
{
__bcd_todecimal(real(*this)-b,_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator*=(bcd _FAR &b)
{
__bcd_todecimal(real(*this)*real(b),_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator*=(long double b)
{
__bcd_todecimal(real(*this)*b,_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator/=(bcd _FAR &b)
{
__bcd_todecimal(real(*this)/real(b),_BcdMaxDecimals,this);
return *this;
}
inline bcd& _RTLENTRY bcd::operator/=(long double b)
{
__bcd_todecimal(real(*this)/b,_BcdMaxDecimals,this);
return *this;
}
// Definitions of non-member binary operator functions
inline bcd _RTLENTRY operator+(bcd _FAR &a, bcd _FAR &b)
{
return bcd(real(a) + real(b));
}
inline bcd _RTLENTRY operator+(long double a, bcd _FAR &b)
{
return bcd(a + real(b));
}
inline bcd _RTLENTRY operator+(bcd _FAR &a, long double b)
{
return bcd(real(a) + b);
}
inline bcd _RTLENTRY operator-(bcd _FAR &a, bcd _FAR &b)
{
return bcd(real(a) - real(b));
}
inline bcd _RTLENTRY operator-(long double a, bcd _FAR &b)
{
return bcd(a - real(b));
}
inline bcd _RTLENTRY operator-(bcd _FAR &a, long double b)
{
return bcd(real(a) - b);
}
inline bcd _RTLENTRY operator*(bcd _FAR &a, bcd _FAR &b)
{
return bcd(real(a) * real(b));
}
inline bcd _RTLENTRY operator*(bcd _FAR &a, long double b)
{
return bcd(real(a) * b);
}
inline bcd _RTLENTRY operator*(long double a, bcd _FAR &b)
{
return bcd(a * real(b));
}
inline bcd _RTLENTRY operator/(bcd _FAR &a, bcd _FAR &b)
{
return bcd(real(a) / real(b));
}
inline bcd _RTLENTRY operator/(long double a, bcd _FAR &b)
{
return bcd(a / real(b));
}
inline bcd _RTLENTRY operator/(bcd _FAR &a, long double b)
{
return bcd(real(a) / b);
}
inline int _RTLENTRY operator==(bcd _FAR &a, bcd _FAR &b)
{
return real(a) == real(b);
}
inline int _RTLENTRY operator!=(bcd _FAR &a, bcd _FAR &b)
{
return real(a) != real(b);
}
inline int _RTLENTRY operator>=(bcd _FAR &a, bcd _FAR &b)
{
return real(a) >= real(b);
}
inline int _RTLENTRY operator<=(bcd _FAR &a, bcd _FAR &b)
{
return real(a) <= real(b);
}
inline int _RTLENTRY operator>(bcd _FAR &a, bcd _FAR &b)
{
return real(a) > real(b);
}
inline int _RTLENTRY operator<(bcd _FAR &a, bcd _FAR &b)
{
return real(a) < real(b);
}
inline bcd _RTLENTRY bcd::operator+()
{
return *this;
}
inline bcd _RTLENTRY bcd::operator-()
{
// return bcd(-real(this));
// 1's comp
mantissa[0] = - ++ mantissa[0];
mantissa[1] = - ++ mantissa[1];
// inc
if (++mantissa[0] == 0) ++mantissa[1];
return *this;
}
inline bcd _RTLENTRY abs(bcd& a) { return bcd(fabs(real(a)));}
inline bcd _RTLENTRY acos(bcd& a) { return bcd(acos(real(a)));}
inline bcd _RTLENTRY asin(bcd& a) { return bcd(asin(real(a)));}
inline bcd _RTLENTRY atan(bcd& a) { return bcd(atan(real(a)));}
inline bcd _RTLENTRY cos(bcd& a) { return bcd(cos(real(a)));}
inline bcd _RTLENTRY cosh(bcd& a) { return bcd(cosh(real(a)));}
inline bcd _RTLENTRY exp(bcd& a) { return bcd(exp(real(a)));}
inline bcd _RTLENTRY log(bcd& a) { return bcd(log(real(a)));}
inline bcd _RTLENTRY log10(bcd& a) { return bcd(__bcd_log10(&a));}
inline bcd _RTLENTRY sin(bcd& a) { return bcd(sin(real(a)));}
inline bcd _RTLENTRY sinh(bcd& a) { return bcd(sinh(real(a)));}
inline bcd _RTLENTRY sqrt(bcd& a) { return bcd(sqrt(real(a)));}
inline bcd _RTLENTRY tan(bcd& a) { return bcd(tan(real(a)));}
inline bcd _RTLENTRY tanh(bcd& a) { return bcd(tanh(real(a)));}
inline bcd _RTLENTRY pow(bcd& a, bcd& b) { return bcd(pow(real(a),real(b)));}
inline void _RTLENTRY pow10(int n, bcd& a) { __bcd_pow10(n,&a);}
// bcd stream I/O
#if defined(__FLAT__)
ostream _FAR & _RTLENTRY _EXPFUNC operator<<(ostream _FAR &, bcd _FAR &);
istream _FAR & _RTLENTRY _EXPFUNC operator>>(istream _FAR &, bcd _FAR &);
#else
ostream _FAR & __pascal _EXPFUNC operator<<(ostream _FAR &, bcd _FAR &);
istream _FAR & __pascal _EXPFUNC operator>>(istream _FAR &, bcd _FAR &);
#endif
#if !defined(RC_INVOKED)
#if defined(__STDC__)
#pragma warn .nak
#endif
#pragma option -Vo.
#if defined(__BCOPT__)
#if !defined(_RTL_ALLOW_po) && !defined(__FLAT__)
#pragma option -po. // restore Object data calling convention
#endif
#endif
#pragma option -a.
#endif /* !RC_INVOKED */
#endif // __BCD_H