>

• 通用少<> 用于C ++标准中的指针

I would like to compare two objects through their addresses. I tried operator overloading and it does not seem to work for pointers, but works for objects themselves. The following is the relevant code:

class C {
        public:
                int x;
};
.
.
.
bool operator <( C *ptr_c1, C *ptr_c2 )
{
        return ( (*ptr_c1).x < (*ptr_c2).x );
}

See these:

• Universal less<> for pointers in C++ standard
• What are the operations supported by raw pointer and function pointer in C/C++?