CORE.h

#ifndef CORE_H
#define CORE_H

/*! Core Functionality and Macros */

/*! Empty Macro */
#define EMPTY() 

/*! Defer Evaluation of M */
#define DEFER(M) M EMPTY()

/*! Obstruct Expansion */
#define OBSTRUCT(M) M DEFER(EMPTY)()

/*! Apply Macro to arguments */
#define APPLY(M, ...) M(__VA_ARGS__)

/*! Join tokens */
#define JOIN(X, Y) X##Y
#define JOIN2(X, Y, Z) X##Y##_##Z

/*! Evaluate expression */
#define EVAL(...) __VA_ARGS__

/*! Evaluate to empty */
#define EAT(...)

/*! Raise error */
#define ERROR(X) (ERROR)##(X)

#endif