diff options
Diffstat (limited to 'src/nvim/hashtab.h')
| -rw-r--r-- | src/nvim/hashtab.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/src/nvim/hashtab.h b/src/nvim/hashtab.h index 7233d8c47c..973b97d476 100644 --- a/src/nvim/hashtab.h +++ b/src/nvim/hashtab.h @@ -5,14 +5,19 @@ #include "nvim/types.h" +/// Magic number used for hashitem "hi_key" value indicating a deleted item +/// +/// Only the address is used. +extern char hash_removed; + /// Type for hash number (hash calculation result). typedef size_t hash_T; /// The address of "hash_removed" is used as a magic number /// for hi_key to indicate a removed item. -#define HI_KEY_REMOVED &hash_removed +#define HI_KEY_REMOVED ((char_u *)&hash_removed) #define HASHITEM_EMPTY(hi) ((hi)->hi_key == NULL \ - || (hi)->hi_key == &hash_removed) + || (hi)->hi_key == (char_u *)&hash_removed) /// A hastable item. /// @@ -65,6 +70,25 @@ typedef struct hashtable_S { hashitem_T ht_smallarray[HT_INIT_SIZE]; /// initial array } hashtab_T; +/// Iterate over a hashtab +/// +/// @param[in] ht Hashtab to iterate over. +/// @param hi Name of the variable with current hashtab entry. +/// @param code Cycle body. +#define HASHTAB_ITER(ht, hi, code) \ + do { \ + hashtab_T *const hi##ht_ = (ht); \ + size_t hi##todo_ = hi##ht_->ht_used; \ + for (hashitem_T *hi = hi##ht_->ht_array; hi##todo_; hi++) { \ + if (!HASHITEM_EMPTY(hi)) { \ + { \ + code \ + } \ + hi##todo_--; \ + } \ + } \ + } while (0) + #ifdef INCLUDE_GENERATED_DECLARATIONS # include "hashtab.h.generated.h" #endif |