From 14228447c9ce664a4e9c31ba10344ec5e4ea4ba5 Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Mon, 26 Apr 2021 01:02:56 +0000 Subject: hash: provide per-algorithm null OIDs Up until recently, object IDs did not have an algorithm member, only a hash. Consequently, it was possible to share one null (all-zeros) object ID among all hash algorithms. Now that we're going to be handling objects from multiple hash algorithms, it's important to make sure that all object IDs have a correct algorithm field. Introduce a per-algorithm null OID, and add it to struct hash_algo. Introduce a wrapper function as well, and use it everywhere we used to use the null_oid constant. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- xdiff-interface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'xdiff-interface.c') diff --git a/xdiff-interface.c b/xdiff-interface.c index 4d20069302..609615db2c 100644 --- a/xdiff-interface.c +++ b/xdiff-interface.c @@ -172,7 +172,7 @@ void read_mmblob(mmfile_t *ptr, const struct object_id *oid) unsigned long size; enum object_type type; - if (oideq(oid, &null_oid)) { + if (oideq(oid, null_oid())) { ptr->ptr = xstrdup(""); ptr->size = 0; return; -- cgit v1.2.1