找错

[songk]

#include <iostream>

using namespace std;

template <class Type>
Type mymin(Type a, Type b)
{
return a < b ? a : b;
}

class rect
{
friend ostream& operator<<(ostream& os, const rect& rhs);
public:
rect(int w, int h) : _w(w), _h(h)
{ _area = _w * _h; }
bool operator<(const rect& rhs) const
{ return _area < rhs._area; }
private:
int _w, _h, _area;
};

ostream& operator<<(ostream& os, const rect& rhs)
{
os << '(' << rhs._w << ',' << rhs._h << ')' << endl;
return os;
}

int main(int argc, char* argv[])
{
cout << mymin(10, 20) << endl;
cout << mymin(30.0, 20.0) << endl;
rect r1(3,5), r2(5,7);
cout << mymin(r1, r2) << endl;
return 0;
}

[pigczc]

在 VC下编译运行都没问题.. 不管是 Release 还是 Debug...
结果也正确..