KaixoCode

/**
 * Sneaky public cast, implemented using the auto-return type friend
 * function trick to have a stateful compiler. This links the value
 * of a private pointer-to-member to a class. This code even works
 * at compile-time. Although in Visual Studio, Intellisense seems 
 * to have trouble some trouble.
 *
 * Do note that you cannot use this public_cast function for a specific
 * member above the `template<> link` specialization. This is because
 * we're relying on compiler state, and it reads the file top-down.