[C++] Template Class (템플릿 클래스)

#include <iostream>
#include <iomanip>
#pragma once
using namespace std;
 
template <typename T>
 
class MyTemplate {
    T data;
public :
    MyTemplate(T_data);
    int Compare(T in);
    operator T();
};
 
template <typename T>
 
MyTemplate <T>::MyTemplate(T_data) {
    data = _data;
}
template <typename T>
int MyTemplate<T>::Compare(T in) {
    return data - in;
}
template <typename T>
MyTemplate<T>::operator T() {
    return data;
}