*
* If your compiler does not support typeof, then the best we can do is fail
* to compile if the sizes of the types are unequal (a less complete check).
*
* Example:
* // Do subtraction to get to enclosing type, but make sure that
*
* If your compiler does not support typeof, then the best we can do is fail
* to compile if the sizes of the types are unequal (a less complete check).
*
* Example:
* // Do subtraction to get to enclosing type, but make sure that