在代码中,为什么是(10 != i)
calling==
而不是!=
?另外两个打电话!=
#include <iostream>
class Integer
{
int x;
public:
bool
operator== (const Integer &i)
{
std::cout << "==";
return x == i.x;
}
bool
operator!= (const Integer &i)
{
std::cout << "!=";
return x != i.x;
}
Integer (int t = 0) { x = t; }
};
int
main ()
{
Integer i;
std::cout << (i != i) << '\n'; // calls !=
std::cout << (i != 100) << '\n'; …
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