c66.cpp

《C++程序设计习题及解答》配套代码VC版

// c66.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <complex>

using namespace std;

// --------------------------------------------------------------------------
class MyComplex : public complex< double >
{
	friend int operator > ( MyComplex& c1, MyComplex& c2 );
public:
	MyComplex() : complex< double >( 0, 0 ) {}
	MyComplex( double r, double i ) : complex< double >( r, i ) { }
};

// --------------------------------------------------------------------------
int operator > ( MyComplex& c1, MyComplex& c2 )
{
	return abs( c1 ) > abs( c2 );
}

// --------------------------------------------------------------------------
template< class T >
T& Bigger( T& a, T& b )
{
	return ( a > b ) ? a : b;
}

// --------------------------------------------------------------------------
int main(int argc, char* argv[])
{
	int i1 = 10, i2 = 20, i3;
	double d1 = 1.1, d2 = 2.2, d3;
	MyComplex c1( 1, 2 ), c2( 3, 4 ), c3;

	i3 = Bigger( i1, i2 );
	c3 = Bigger( c1, c2 );
	d3 = Bigger( d1, d2 );

	cout << "The result is: \n"
		<< "The Bigger of " << i1 << " and " << i2 << " is " << i3 << endl
		<< "The Bigger of " << d1 << " and " << d2 << " is " << d3 << endl
		<< "The Bigger of " << c1 << " and " << c2 << " is " << c3 << endl;

	return 0;
}