运算符重载为友元函数的问题
#include <iostream>using namespace std;
class Complex
{
public:
Complex(double r=0.0, double i=0.0):real(r), imag(i) {}
friend Complex operator+(const Complex &c1, const Complex &c2);
friend Complex operator-(const Complex &c1, const Complex &c2);
friend ostream &operator<<(ostream &out, const Complex &c);
private:
double real;
double imag;
};
Complex operator+(const Complex &c1, const Complex &c2)
{
return Complex(c1.real+c2.real, c1.imag+c2.imag);
}
Complex operator-(const Complex &c1, const Complex &c2)
{
return Complex(c1.real-c2.real, c1.imag-c2.imag);
}
ostream &operator<<(ostream &out, const Complex &c)
{
out<<"("<<c.real<<","<<c.imag<<")";
return out;
}
int main()
{
Complex c1(5, 4), c2(2, 10), c3;
cout<<"c1="<<c1<<endl;
cout<<""c2="<<c2<<endl;
c3=c1-c2;
cout<<"c3=c1-c2"<<c3<<endl;
c3=c1+c2;
cout<<"c3=c1+c2"<<c3<<endl;
return 0;
}
为什么运行时会出现错误：fatal error C1001: INTERNAL COMPILER ERROR
怎么回事？
