#ifndef ENUMS_H
#define ENUMS_H

#ifdef __cplusplus
extern "C" {
#endif

// Enums
// =====
// Enums can be combined with the item qualifiers I, A and (only enums) X
// so their combinations are simple.
//
// Covered combinations
// ====================
// _IE   = incomplete enum without an alias
// IE    = incomplete enum
// AIE   = alias of an incomplete enum
// _E    = enum without an alias
// E     = enum
// AE    = alias of an enum
// _XE   = anonymous enum without an alias
// AXE   = alias of an anonymous enum

// FORBIDDEN IN C++
#ifndef __cplusplus
    // _IE   = incomplete enum without anb alias
    enum _IE;
    // IE    = incomplete enum
    // AIE   = alias of an incomplete enum
    typedef enum IE AIE;
#endif

// _E    = enum without an alias
enum _E {
    _E1,
    _E2,
    _E3
};

// E     = enum
// AE    = alias of an enum
typedef enum E {
    E1,
    E3,
    E2,
} AE;

// _XE   = anonymous enum
enum {
    _XE1,
    _XE2,
    _XE3
};

typedef enum {
    AXE1,
    AXE2,
    AXE3
} AXE;

#ifdef __cplusplus
}
#endif

#endif //ENUMS_H