diff options
Diffstat (limited to 'src/offmap.h')
| -rw-r--r-- | src/offmap.h | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/src/offmap.h b/src/offmap.h index f2a8cadcd..456e2aeea 100644 --- a/src/offmap.h +++ b/src/offmap.h @@ -99,6 +99,27 @@ int git_offmap_delete(git_offmap *map, const git_off_t key); */ int git_offmap_exists(git_offmap *map, const git_off_t key); +/** + * Iterate over entries of the map. + * + * This functions allows to iterate over all key-value entries of + * the map. The current position is stored in the `iter` variable + * and should be initialized to `0` before the first call to this + * function. + * + * @param map map to iterate over + * @param value pointer to the variable where to store the current + * value. May be NULL. + * @param iter iterator storing the current position. Initialize + * with zero previous to the first call. + * @param key pointer to the variable where to store the current + * key. May be NULL. + * @return `0` if the next entry was correctly retrieved. + * GIT_ITEROVER if no entries are left. A negative error + * code otherwise. + */ +int git_offmap_iterate(void **value, git_offmap *map, size_t *iter, git_off_t *key); + size_t git_offmap_lookup_index(git_offmap *map, const git_off_t key); int git_offmap_valid_index(git_offmap *map, size_t idx); @@ -115,18 +136,13 @@ void git_offmap_insert(git_offmap *map, const git_off_t key, void *value, int *r size_t git_offmap_begin(git_offmap *map); size_t git_offmap_end(git_offmap *map); -#define git_offmap_foreach(h, kvar, vvar, code) { size_t __i; \ - for (__i = git_offmap_begin(h); __i != git_offmap_end(h); ++__i) { \ - if (!git_offmap_has_data(h,__i)) continue; \ - (kvar) = git_offmap_key_at(h,__i); \ - (vvar) = git_offmap_value_at(h,__i); \ +#define git_offmap_foreach(h, kvar, vvar, code) { size_t __i = 0; \ + while (git_offmap_iterate((void **) &(vvar), h, &__i, &(kvar)) == 0) { \ code; \ } } -#define git_offmap_foreach_value(h, vvar, code) { size_t __i; \ - for (__i = git_offmap_begin(h); __i != git_offmap_end(h); ++__i) { \ - if (!git_offmap_has_data(h,__i)) continue; \ - (vvar) = git_offmap_value_at(h,__i); \ +#define git_offmap_foreach_value(h, vvar, code) { size_t __i = 0; \ + while (git_offmap_iterate((void **) &(vvar), h, &__i, NULL) == 0) { \ code; \ } } |