如果没有相等运算符,STL map :: find函数如何工作？

#include<iostream>
#include <map>

class MyClass {
public:
    int value;

    bool operator==(const MyClass& other) const {
        return value == other.value;
    }
};

struct MyComparator {
    bool operator()(const MyClass& lhs, const MyClass& rhs) const {
        return lhs.value < rhs.value;
    }
};

int main() {
    std::map<MyClass, std::string, MyComparator> myMap;
    MyClass obj1 = {1};
    MyClass obj2 = {2};

    myMap[obj1] = "Object 1";
    myMap[obj2] = "Object 2";

    auto it = myMap.find(obj1);
    if (it != myMap.end()) {
        std::cout << "Found object: " << it->second<< std::endl;
    } else {
        std::cout << "Object not found"<< std::endl;
    }

    return 0;
}