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#pragma once
template <typename T>
class Maybe{
typedef struct {
T v;
} t_v_wrapper;
bool is_something;
t_v_wrapper *wr;
public:
Maybe(void):is_something(false),wr(nullptr){}
Maybe(const T &_v):is_something(true),wr(new t_v_wrapper({_v})){}
Maybe(const T &&_v):is_something(true),wr(new t_v_wrapper({move(_v)})){}
~Maybe(void){if(wr)delete wr;}
operator bool() const{return this->is_something;}
T value(void){
if(is_something)return wr->v;
throw "Nothing";
}
};
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