diff options
Diffstat (limited to 'src/macros.h')
| -rw-r--r-- | src/macros.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/macros.h b/src/macros.h index ca54cb42e0..ae784d6cc1 100644 --- a/src/macros.h +++ b/src/macros.h @@ -353,3 +353,14 @@ # endif # endif #endif + +/* + * In a hashtab item "hi_key" points to "di_key" in a dictitem. + * This avoids adding a pointer to the hashtab item. + * DI2HIKEY() converts a dictitem pointer to a hashitem key pointer. + * HIKEY2DI() converts a hashitem key pointer to a dictitem pointer. + * HI2DI() converts a hashitem pointer to a dictitem pointer. + */ +# define DI2HIKEY(di) ((di)->di_key) +# define HIKEY2DI(p) ((dictitem_T *)(p - offsetof(dictitem_T, di_key))) +# define HI2DI(hi) HIKEY2DI((hi)->hi_key) |