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#ifndef _real_h
#define _real_h
// copied from math.h
// #ifndef M_PI
// # define M_PI 3.14159265358979323846
// #endif
#if (!REAL_IS_CLASS)
# if (REAL_IS_FLOAT)
typedef float Real;
# else
typedef double Real;
# endif
# define _RealZero 0.0
#else
class Real {
public:
Real(const Real &r) { d=r.d; }
Real(int l_val) { d = (double)l_val; }
Real(double d_val) { d = d_val; }
Real() { }
operator double() const { return (double)d; }
// operator int() const { return (int)d; }
const Real& operator=(const Real &z);
inline const Real& operator+=(const Real &z);
inline const Real& operator+=(double d);
inline Real Real::operator+(const Real&) const;
friend inline Real operator+(double, const Real&);
friend inline Real operator+(const Real&, double);
inline const Real& operator-=(const Real &z);
inline const Real& operator-=(double d);
inline Real Real::operator-(const Real&) const;
friend inline Real operator-(double, const Real&);
friend inline Real operator-(const Real&, double);
inline const Real& operator*=(const Real &z);
inline const Real& operator*=(double d);
inline Real Real::operator*(const Real&) const;
friend inline Real operator*(double, const Real&);
friend inline Real operator*(const Real&, double);
inline const Real& operator/=(const Real &z);
inline const Real& operator/=(double d);
inline Real Real::operator/(const Real&) const;
friend inline Real operator/(double, const Real&);
friend inline Real operator/(const Real&, double);
friend inline int operator==(const Real&, const Real&);
friend inline int operator!=(const Real&, const Real&);
friend inline int operator<=(const Real&, const Real&);
friend inline int operator>=(const Real&, const Real&);
friend inline int operator< (const Real&, const Real&);
friend inline int operator> (const Real&, const Real&);
friend inline int operator==(const Real&, double d);
friend inline int operator!=(const Real&, double d);
friend inline int operator<=(const Real&, double d);
friend inline int operator>=(const Real&, double d);
friend inline int operator< (const Real&, double d);
friend inline int operator> (const Real&, double d);
inline int operator!() const { return (d)?0:1; }
inline Real operator+() const { return *this; }
inline Real operator-() const { return Real(-d); }
private:
// Real( long ) {}
// Real( int ) {}
#if (REAL_IS_FLOAT)
float d;
#else
double d;
#endif
};
//--------------------------------------------------------------------------
inline const Real& Real::operator=(const Real &z)
{
d = z.d;
return *this;
}
inline const Real& Real::operator+=(const Real &z)
{
d += z.d;
return *this;
}
inline const Real& Real::operator-=(const Real &z)
{
d -= z.d;
return *this;
}
inline const Real& Real::operator*=(const Real &z)
{
d *= z.d;
return *this;
}
inline const Real& Real::operator/=(const Real &z)
{
d /= z.d;
return *this;
}
//--------------------------------------------------------------------------
inline int operator==(const Real& z1, const Real& z2)
{ return z1.d == z2.d; }
inline int operator!=(const Real& z1, const Real& z2)
{ return z1.d != z2.d; }
inline int operator<(const Real& z1, const Real& z2)
{ return z1.d < z2.d; }
inline int operator>(const Real& z1, const Real& z2)
{ return z1.d > z2.d; }
inline int operator<=(const Real& z1, const Real& z2)
{ return z1.d <= z2.d; }
inline int operator>=(const Real& z1, const Real& z2)
{ return z1.d >= z2.d; }
inline int operator==(const Real& z1, double d)
{ return z1.d == d; }
inline int operator!=(const Real& z1, double d)
{ return z1.d != d; }
inline int operator<(const Real& z1, double d)
{ return z1.d < d; }
inline int operator>(const Real& z1, double d)
{ return z1.d > d; }
inline int operator<=(const Real& z1, double d)
{ return z1.d <= d; }
inline int operator>=(const Real& z1, double d)
{ return z1.d >= d; }
//--------------------------------------------------------------------------
inline Real Real::operator+( const Real &z ) const { Real erg(*this); erg+=z; return erg; }
inline const Real& Real::operator+=(double d) { return *this+=Real(d); }
inline Real operator+( double d, const Real &z2 ) { return Real(d)+z2; }
inline Real operator+( const Real &z1, double d ) { return z1+Real(d); }
inline Real Real::operator-( const Real &z ) const { Real erg(*this); erg-=z; return erg; }
inline const Real& Real::operator-=(double d) { return *this-=Real(d); }
inline Real operator-( double d, const Real &z2 ) { return Real(d)-z2; }
inline Real operator-( const Real &z1, double d ) { return z1-Real(d); }
inline Real Real::operator*( const Real &z ) const { Real erg(*this); erg*=z; return erg; }
inline const Real& Real::operator*=(double d) { return *this*=Real(d); }
inline Real operator*( double d, const Real &z2 ) { return Real(d)*z2; }
inline Real operator*( const Real &z1, double d ) { return z1*Real(d); }
inline Real Real::operator/( const Real &z ) const { Real erg(*this); erg/=z; return erg; }
inline const Real& Real::operator/=(double d) { return *this/=Real(d); }
inline Real operator/( double d, const Real &z2 ) { return Real(d)/z2; }
inline Real operator/( const Real &z1, double d ) { return z1/Real(d); }
//--------------------------------------------------------------------------
#endif
#ifndef RealZero
extern const Real RealZero; // Null als Konstante der Klasse
#endif
class FunTab {
public:
FunTab( double (*fkt)(double), double from=0.0, double to=360.0, int step=360 );
~FunTab();
const Real &GetVal( const Real &in ) const;
Real GetRezVal( const Real &in ) const;
private:
Real *val;
Real from;
Real to;
int step;
Real interval;
};
extern "C" {
double floor( double x ); // aus math.h
}
inline int rtoi(const Real &r) { return (int)floor((double)r+0.5); }
#endif
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