Unreal Engine 4 -- Member Accessor Method Macros (NOTE: This does not result in the accessors being available for blueprint-use as they're not UFUNCTIONs).

AccessorMacroGenerators.h

// NOTE: This does not result in the accessors being available for blueprint-use as they're not UFUNCTIONs.

UCLASS( )
class URawr : public UObject
{
	GENERATED_CLASS( )

protected:
	float RawrValue;
		
public:
	#define DEFINE_METHOD_SET_ACCESSOR( MemberType, Member )            \
	FORCEINLINE_DEBUGGABLE void Set##Member( MemberType Member##In )    \
	{                                                                   \
		Member = Member##In;                                            \
	}
#define DEFINE_METHOD_GET_ACCESSOR( MemberType, Member )                \
	FORCEINLINE_DEBUGGABLE MemberType Get##Member( ) const              \
	{                                                                   \
		return Member;                                                  \
	}
#define DEFINE_METHOD_ACCESSORS( MemberType, Member )                   \
	DEFINE_METHOD_SET_ACCESSOR( MemberType, Member )                    \
	DEFINE_METHOD_GET_ACCESSOR( MemberType, Member )

	// Define set/get accessors for RawrValue.
	DEFINE_METHOD_ACCESSORS( float, RawrValue )
	
#undef DEFINE_METHOD_ACCESSORS
#undef DEFINE_METHOD_GET_ACCESSOR
#undef DEFINE_METHOD_SET_ACCESSOR
};

// Now actual things:
RawrInstance->SetRawrValue( 7777 );
uint32 rawr = RawrInstance->GetRawrValue( );