PImpl macros

Defines
#define	DECLARE_OPAQUE_TYPE(NAME, OPAQUE_TYPE)
	Declares an opaque type of the given name, setting its internal opaque value type to the given opaque type.
#define	DEFINE_OPAQUE_TYPE(NAME, ACTUAL_TYPE)
	Defines the previously declared opaque type of the given name, setting its actual value type to the given actual type and thus changing its state from opaque to transparent.

---

Detailed Description

See also:

lean::pimpl

---

Define Documentation

#define DECLARE_OPAQUE_TYPE	(		NAME,
			OPAQUE_TYPE
	)

Value:

struct NAME##_opaque_type_wrapper           \
    {                                           \
        typedef OPAQUE_TYPE type;               \
    };                                          \
                                                \
    struct NAME##_actual_type_wrapper;          \
                                                \
    typedef ::lean::opaque_val<                 \
        NAME##_actual_type_wrapper,             \
        NAME##_opaque_type_wrapper> NAME;

Declares an opaque type of the given name, setting its internal opaque value type to the given opaque type.

#define DEFINE_OPAQUE_TYPE	(		NAME,
			ACTUAL_TYPE
	)

Value:

struct NAME##_actual_type_wrapper : public NAME##_opaque_type_wrapper   \
    {                                                                       \
        typedef ACTUAL_TYPE type;                                           \
    };

Defines the previously declared opaque type of the given name, setting its actual value type to the given actual type and thus changing its state from opaque to transparent.