commit cba595bd21fd0731e37898dbd6c5b55f65fd8aea
author Jeff King <peff@peff.net> Thu Mar 22 14:53:24 2012 -0400
committer Junio C Hamano <gitster@pobox.com> Fri Mar 23 13:52:05 2012 -0700
tree 2bd67efd15c4aab92cd7abde661c500a663edeef
parent 498a04af143f55a7bbbba484d48a7f123d43be04

drop casts from users EMPTY_TREE_SHA1_BIN

This macro already evaluates to the correct type, as it
casts the string literal to "unsigned char *" itself
(and callers who want the literal can use the _LITERAL
form).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/diff.c

diff --git a/builtin/diff.c b/builtin/diff.c
index 424c815..9069dc4 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -327,7 +327,7 @@
 				add_head_to_pending(&rev);
 				if (!rev.pending.nr) {
 					struct tree *tree;
-					tree = lookup_tree((const unsigned char*)EMPTY_TREE_SHA1_BIN);
+					tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
 					add_pending_object(&rev, &tree->object, "HEAD");
 				}
 				break;