enum.hpp is a code facility for defining enums in C++ that have associated lookup arrays from each value of the enum to the value of another type. The facility eliminates the possibility of hard-to-find bugs resulting from the lookup array order not corresponding to the enum value order.

enum_ex.cpp

enum.hpp

Here is an older C example, along the same lines but less powerful.

ex1.c

gen_enum.h

pp_concat.h