OperatorEqual Check

#pragma once

#ifndef _OPERATORCHECK_H_
#define _OPERATORCHECK_H_

namespace OperatorCheck
{
    typedef char no[7];
    template<typename T> no& operator == (const T&, const T&);

    template <typename T>
    struct opEqualExists
    {
        enum { value = (sizeof(*new T[1] == *new T[1]) != sizeof(no)) };
    };
}

#define IsEqualOperatorExists(expr) (OperatorCheck::opEqualExists<expr>::value == 1 ? true : false)

#endif