From b867d324ceb7e5c4f14a04c6b55d69498812d24b Mon Sep 17 00:00:00 2001
From: Dan McGee <dpmcgee@gmail.com>
Date: Mon, 11 May 2009 20:17:38 -0500
Subject: Fix type-punning issues

In these two places we are casting part of our unsigned char sha1 array into
an unsigned int, which violates GCCs strict-aliasing rules (and probably
other compilers).

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/decorate.c b/decorate.c
index 82d9e22..e6fd8a7 100644
--- a/decorate.c
+++ b/decorate.c
@@ -8,7 +8,9 @@
 
 static unsigned int hash_obj(const struct object *obj, unsigned int n)
 {
-	unsigned int hash = *(unsigned int *)obj->sha1;
+	unsigned int hash;
+
+	memcpy(&hash, obj->sha1, sizeof(unsigned int));
 	return hash % n;
 }
 
diff --git a/object.c b/object.c
index 7e6a92c..e1feef9 100644
--- a/object.c
+++ b/object.c
@@ -45,7 +45,8 @@ int type_from_string(const char *str)
 
 static unsigned int hash_obj(struct object *obj, unsigned int n)
 {
-	unsigned int hash = *(unsigned int *)obj->sha1;
+	unsigned int hash;
+	memcpy(&hash, obj->sha1, sizeof(unsigned int));
 	return hash % n;
 }
 
-- 
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