cpp_property:零开销的C＃像C ++的属性！

cpp_property 仅标头，零开销C＃-类似C ++的属性！ struct In { int x; int y; }; class Data { In m_i; public: auto i (){ return Property ( [&]() -> In { return { m_i. x * 10 , m_i. y * - 10 }; }, [&]( const auto & i){ m_i = i; } ); } }; int main (){