result.hpp

template <class T, class E>
union ResultContent {
    T data;
    E error;
};

template<class T = bool, class E = bool>
struct Result {
protected:
    bool ok;
    ResultContent<T, E> content;

public:
    Result(bool ok, ResultContent<T, E> content) {
        this->ok = ok;
        this->content = content;
    }

    static Result<T, E> Succ(){
        ResultContent<T, E> content;
        content.data = true;
        return Result<T, E>(true, content);
    }

    static Result<T, E> Fail(){
        ResultContent<T, E> content;
        content.data = false;
        return Result<T, E>(false, content);
    }

    static Result<T, E> Succ(T data){
        ResultContent<T, E> content;
        content.data = data;
        return Result<T, E>(true, content);
    }

    static Result<T, E> Fail(E err){
        ResultContent<T, E> content;
        content.err = err;
        return Result<T, E>(false, content);
    }

    T getData() {
        return this->content.data;
    }

    E getErr() {
        return this->content.err;
    }
}