Fix a bug with `ht_index` called with `size==0`; fix
It happens when a hash made empty calls `rehash`.
MODIFY
src/hash.c
src/hash.c
@@ -174,6 +174,11 @@ ht_index(mrb_state *mrb, htable *t)
segment *seg;
size_t i;
+ if (size == 0) {
+ t->index = NULL;
+ mrb_free(mrb, index);
+ return;
+ }
/* allocate index table */
if (index && index->size >= UPPER_BOUND(index->capa)) {
size = index->capa+1;
@@ -194,7 +199,7 @@ ht_index(mrb_state *mrb, htable *t)
index->table[i] = NULL;
}
- /* rebuld index */
+ /* rebuild index */
mask = HT_MASK(index);
seg = t->rootseg;
while (seg) {

Fix a bug with `ht_index` called with `size==0`; fix #5046

It happens when a hash made empty calls `rehash`.