complexcz.cpp

这是用c++实现的一个复数重载的实例

#include<iostream.h>
#include<math.h>
#include"complexcz.h"

Complex::Complex(double rl,double im)
{
	real=rl;
	image=im;
}
Complex operator+(Complex c1,Complex c2)
{
	return Complex(c1.real+c2.real,c1.image+c2.image);
}
Complex operator-(Complex c1,Complex c2)
{
	return Complex(c1.real-c2.real,c1.image-c2.image);
}
Complex operator*(Complex c1,Complex c2)
{
	return Complex(c1.real*c2.real-c1.image*c2.image,c1.real*c2.image+c1.image*c2.real);
}
Complex operator/(Complex c1,Complex c2)
{
	Complex temp ;
	double c;
	c=c2.real*c2.real+c2.image*c2.image;
	c2.image=-c2.image;
	temp=c1*c2;
	temp.real/=c;
    temp.image/=c;
	return temp;
}
 Complex & Complex::operator+=(Complex a)
{
	*this=*this+a;
   return *this;
}

 Complex & Complex::operator-=(Complex a)
{
	*this=*this-a;
    return *this;
}

ostream & operator<<(ostream & dest,Complex source)
{
	char sign='+';
	if(source.image<0)
		sign='-';
	dest<<" "<<source.real<<sign<<fabs(source.image)<<"i";
		dest<<endl;
	return dest;
}

Complex & Complex::operator++()
{
	real++;
	image++;
	return *this;
}
Complex Complex::operator++(int)
{
	Complex temp=*this;
	real++;
	image++;
	return temp;
}
Complex & Complex::operator--()
{
	real--;
	image--;
	return *this;
}
Complex Complex::operator--(int)
{
	Complex temp=*this;
	real--;
	image--;
	return temp;
}

Complex & Complex::operator=( const Complex c1)
{
	if(this==&c1)
		return *this;
	else 
		this->real=c1.real;
	    this->image=c1.image;
	return *this;

}


/*void Complex::display()
{
	char sign='+';
	if(image<0)
		sign='-';
	cout<<real<<sign<<fabs(image)<<"i";
}
*/