s_GlobalData.hpp

#pragma once
 
/**
 * @brief A templated global data holder class.
 * @tparam T The class that contains the global data struct.
 * @unofficial
 */
template <typename T>
class sGlobalData_c {
public:
    static const typename T::GlobalData_t mData; ///< @unofficial
};
 
// Some beautiful template magic to get quick access to the global data of a class.
 
template <class T>
struct remove_reference { typedef T type; };
template <class T>
struct remove_reference<T&> { typedef T type; };
 
#define GLOBAL_DATA_DEF(cls, data) template<> const cls::GlobalData_t sGlobalData_c<cls>::mData = data
#define GLOBAL_DATA sGlobalData_c<remove_reference<decltype(*this)>::type>::mData