NV
#define NV(type, mode, item) \
#undef NV
#define NV(type, item) \
#undef NV
#define NV(type, item) \
#undef NV
#define NV(type, item) \
#undef NV
#define NV(type, mode, item) do { \
#undef NV
#define NV(type, item) do { \
#undef NV
#define NV(type, item) do { \
#undef NV
#define NV(type, item, var) do { \
#undef NV
#define NV(type, mode, item, var) do { \
#undef NV
#define NV(type, item) do { \
#undef NV
#define NV(type, item) \
#undef NV
#define NV(type, mode, item) \
#undef NV
#define NV(type, item) \
#undef NV
#define NV(type, item) \
#undef NV