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* [PATCH] archive-tar: keep const in checksum calculation
@ 2012-05-18  5:18 René Scharfe
  0 siblings, 0 replies; only message in thread
From: René Scharfe @ 2012-05-18  5:18 UTC (permalink / raw)
  To: git discussion list; +Cc: Junio C Hamano

For correctness, don't needlessly drop the const qualifier when casting.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
---
 archive-tar.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/archive-tar.c b/archive-tar.c
index 93387ea..dc91c6b 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -139,13 +139,13 @@ static void strbuf_append_ext_header(struct strbuf *sb, const char *keyword,
 
 static unsigned int ustar_header_chksum(const struct ustar_header *header)
 {
-	char *p = (char *)header;
+	const char *p = (const char *)header;
 	unsigned int chksum = 0;
 	while (p < header->chksum)
 		chksum += *p++;
 	chksum += sizeof(header->chksum) * ' ';
 	p += sizeof(header->chksum);
-	while (p < (char *)header + sizeof(struct ustar_header))
+	while (p < (const char *)header + sizeof(struct ustar_header))
 		chksum += *p++;
 	return chksum;
 }
-- 
1.7.10.2

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