[PATCH 4/5] Cleanup unpack_object_header to use only offsets.

From: Shawn Pearce <spearce@spearce.org>
Date: Aug 26, 2006, 08:12 UTC
Message-ID: <20060826081204.GF22343@spearce.org>

If we're always incrementing both the offset and the pointer we aren't gaining anything by keeping both. Instead just use the offset since that's what we were given and what we are expected to return. Also using offset is likely to make it easier to remap the pack in the future should partial mapping of very large packs get implemented.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 sha1_file.c |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/sha1_file.c b/sha1_file.c
index b580cee..e6d47c1 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -917,23 +917,19 @@ static unsigned long unpack_object_heade
 	enum object_type *type, unsigned long *sizep)
 {
 	unsigned shift;
-	unsigned char *pack, c;
+	unsigned char c;
 	unsigned long size;
 
 	if (offset >= p->pack_size)
 		die("object offset outside of pack file");
-
-	pack =  (unsigned char *) p->pack_base + offset;
-	c = *pack++;
-	offset++;
+	c = *((unsigned char *)p->pack_base + offset++);
 	*type = (c >> 4) & 7;
 	size = c & 15;
 	shift = 4;
 	while (c & 0x80) {
 		if (offset >= p->pack_size)
 			die("object offset outside of pack file");
-		c = *pack++;
-		offset++;
+		c = *((unsigned char *)p->pack_base + offset++);
 		size += (c & 0x7f) << shift;
 		shift += 7;
 	}

-- 
1.4.2.g6580