diff options
Diffstat (limited to 'array.c')
| -rw-r--r-- | array.c | 52 |
1 files changed, 45 insertions, 7 deletions
@@ -8,7 +8,12 @@ #define ARRAY_SIZE 16 void array_init(Array *arr) { + array_init_sized(arr, sizeof(void*)); +} + +void array_init_sized(Array *arr, size_t elem_size) { memset(arr, 0, sizeof *arr); + arr->elem_size = elem_size; } bool array_reserve(Array *arr, size_t count) { @@ -16,7 +21,7 @@ bool array_reserve(Array *arr, size_t count) { count = ARRAY_SIZE; if (arr->count < count) { count = MAX(count, arr->count*2); - void **items = realloc(arr->items, count * sizeof(void*)); + char *items = realloc(arr->items, count * arr->elem_size); if (!items) return false; arr->count = count; @@ -29,21 +34,21 @@ void array_release(Array *arr) { if (!arr) return; free(arr->items); - array_init(arr); + array_init_sized(arr, arr->elem_size); } void array_release_full(Array *arr) { if (!arr) return; for (size_t i = 0; i < arr->len; i++) - free(arr->items[i]); + free(array_get_ptr(arr, i)); array_release(arr); } void array_clear(Array *arr) { arr->len = 0; if (arr->items) - memset(arr->items, 0, arr->count * sizeof(void*)); + memset(arr->items, 0, arr->count * arr->elem_size); } void *array_get(Array *arr, size_t idx) { @@ -51,7 +56,16 @@ void *array_get(Array *arr, size_t idx) { errno = EINVAL; return NULL; } - return arr->items[idx]; + return arr->items + (idx * arr->elem_size); +} + +void *array_get_ptr(Array *arr, size_t idx) { + if (arr->elem_size != sizeof(void*)) { + errno = ENOTSUP; + return NULL; + } + void **ptr = array_get(arr, idx); + return ptr ? *ptr : NULL; } bool array_set(Array *arr, size_t idx, void *item) { @@ -59,14 +73,38 @@ bool array_set(Array *arr, size_t idx, void *item) { errno = EINVAL; return false; } - arr->items[idx] = item; + if (item) + memcpy(arr->items + (idx * arr->elem_size), item, arr->elem_size); + else + memset(arr->items + (idx * arr->elem_size), 0, arr->elem_size); return true; } +bool array_set_ptr(Array *arr, size_t idx, void *item) { + if (arr->elem_size != sizeof(void*)) { + errno = ENOTSUP; + return false; + } + return array_set(arr, idx, &item); +} + bool array_add(Array *arr, void *item) { if (!array_reserve(arr, arr->len+1)) return false; - arr->items[arr->len++] = item;; + if (!array_set(arr, arr->len++, item)) { + arr->len--; + return false; + } + return true; +} + +bool array_add_ptr(Array *arr, void *item) { + if (!array_reserve(arr, arr->len+1)) + return false; + if (!array_set_ptr(arr, arr->len++, item)) { + arr->len--; + return false; + } return true; } |
