关于 istream &operator >> ？

[nanyou1]

istream &operator >> (istream &in,complex &s)
{
cout << "请输入实部的值： " ;
cin >> s.real ;
cout << "请输入虚部的值： " ;
cin >> s.image;
return in;
}
//定义的复数类的输入运算的重载

void main()
{
complex complex1;
cin >> complex1;
}


出现错误：error C2593: 'operator >>' is ambiguous
是不是>> 没有重载成功？

帮忙！！谢谢

[sinosinux]

gcc编译，运行都没错误

#include <iostream>

using namespace std;
class complex
{
    public:
	int real;
	int image;
};
istream &operator >>  (istream &in,complex &s)
{
cout  << "请输入实部的值： " ;
cin >>  s.real ;
        cout  << "请输入虚部的值： " ;
cin >>  s.image;
return in;
}

int main()
{
complex complex1;
cin >>  complex1;
return 0;
} 

[nanyou1]

谢谢

[jieao111]

应该这样把

istream &operator > >  (istream &in,complex &s) 
{ 
cout  < < "请输入实部的值： " ; 
in > >  s.real ; //cin应该改成in
        cout  < < "请输入虚部的值： " ; 
in > >  s.image; 
return in; 
} 
//定义的复数类的输入运算的重载 

void main() 
{ 
complex complex1; 
cin > >  complex1; 
} 

[sadguy]

[Quote=引用 3 楼 jieao111 的回复:]
应该这样把

C/C++ code
istream &operator > > (istream &in,complex &s)
{
cout < < "请输入实部的值： " ;
in > > s.real ; //cin应该改成in
cout < < "请输入虚部的值： " ;
in > > s.image;
return in;
}
//定义的复数类的输入运算的重载

void main()
{
complex complex1;
cin > > complex1;
}
[/Quote]
应该这样吧..

[荒漠中的诗歌]

1 #include "iostream.h"
2 #include "iostream"
using namespace std;
是不同的
你只能选第二种

[study_live]

#include "stdafx.h"
#include <iostream>
using namespace std;

class complex
{
public:
	int real;
	int image;
};

istream &operator >> (istream &in,complex &s) 
{ 
	cout << "请输入实部的值： " ; 
	cin >> s.real ; 
	cout << "请输入虚部的值： " ; 
	cin >> s.image; 
	return in; 
} 
//定义的复数类的输入运算的重载 

void main() 
{ 
	complex complex1; 
	cin >> complex1; 

	system("pause");
} 

VS编译也没错啊

[cxxer]

#include <iostream>
#include <math>

using namespace std;

class myComplex
{
    public:
       myComplex(double r = 0.0, double i =0.0) {real = r; image = i;}
       friend istream& operator>>(istream &, myComplex&);
       friend ostream& operator<<(ostream &, myComplex&);

    private:
       double real, image;[code=C/C++]

};

istream& operator>>(istream &in, myComplex& c)
{
cout << "请输入实部";
in >> c.real;
cout << "请输入虚部";
in >> c.image;
return in;
}

ostream& operator<<(ostream &out, myComplex& c);
{
out << c.real << c.image > 0 ? '+':'-' << abs(c.image) << 'i';
return out;
}

int main()
{
myComplex myCl;
cin >> mycl;
cout << mycl << endl;
return 0;
}
[/code]

[cxxer]

#include <iostream>
#include <math>

using namespace std;

class myComplex
{
    public:
       myComplex(double r = 0.0, double i =0.0) {real = r; image = i;}
       friend istream& operator>>(istream &, myComplex&);
       friend ostream& operator<<(ostream &, myComplex&);

    private:
       double real, image;[code=C/C++]


}; 

istream& operator>>(istream &in, myComplex& c) 
{ 
    cout < < "请输入实部"; 
    in >> c.real; 
    cout < < "请输入虚部"; 
    in >> c.image; 
    return in; 
} 

ostream& operator < <(ostream &out, myComplex& c); 
{ 
    out < < c.real < < c.image > 0 ? '+':'-'  < < abs(c.image) < < 'i'; 
    return out; 
} 

int main() 
{ 
  myComplex myCl; 
  cin >> mycl; 
  cout < < mycl < < endl; 
  return 0; 
}