**fig1_7.txt**

/* 1*/	#include <iostream.h>

/* 2*/	class Complex
/* 3*/	{
/* 4*/	  private:
/* 5*/	    Real Real_Part;
/* 6*/	    Real Imag_Part;

/* 7*/	  public:
/* 8*/	    // Constructors.
/* 9*/	    Complex( Real R_Part = 0.0, Real I_Part = 0.0 ) :
/*10*/	            Real_Part( R_Part ), Imag_Part( I_Part ) { }
/*11*/	    Complex( const Complex & Value );

/*12*/	    // Destructor.
/*13*/	    ~Complex( ) { }
/*14*/	    
/*15*/	    // Assignments.
/*16*/	    const Complex & operator =  ( const Complex & Value );
/*17*/	    const Complex & operator += ( const Complex & Value );

/*18*/	    // Accessors.
/*19*/	    Real Get_Real( ) const { return Real_Part; }
/*20*/	    Real Get_Imag( ) const { return Imag_Part; }

/*21*/	    // Non-member friends.
/*22*/	  private:
/*23*/	    friend ostream & operator <<
/*24*/	            ( ostream & Out, const Complex & Value );
/*25*/	    friend Complex operator *
/*26*/	            ( const Complex & A, const Complex & B );
/*27*/	    friend Complex operator /
/*28*/	            ( const Complex & A, const Complex & B );
/*29*/	    friend Complex operator +
/*30*/	            ( const Complex & A, const Complex & B );
/*31*/	    friend Complex operator -
/*32*/	            ( const Complex & A, const Complex & B );
/*33*/	    friend Complex operator -
/*34*/	            ( const Complex & A );
/*35*/	};