dict.c: prevent useless resize to same size.

Related to issue #2306.
2025-03-18 08:30:51 +00:00 · 2015-02-05 10:42:09 +01:00 · 2015-02-05 10:42:09 +01:00 · 777020839a
commit 777020839a
parent 170e41464d
1 changed files with 3 additions and 0 deletions
--- a/src/dict.c
+++ b/src/dict.c
@ -211,6 +211,9 @@ int dictExpand(dict *d, unsigned long size)
    if (dictIsRehashing(d) || d->ht[0].used > size)
        return DICT_ERR;

+    /* Rehashing to the same table size is not useful. */
+    if (realsize == d->ht[0].size) return DICT_ERR;
+
    /* Allocate the new hash table and initialize all pointers to NULL */
    n.size = realsize;
    n.sizemask = realsize-1;