[PATCH 01/17] cache: update object ID functions for the_hash_algo

["brian m. carlson" <sandals@crustytoothpaste.net>]

Update the hashcpy and hashclr functions to use the_hash_algo, since
they are used in a variety of places to copy and manipulate buffers that
need to move data into or out of struct object_id.  Update oidcmp so
that it is implemented on its own and similarly uses the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 cache.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cache.h b/cache.h
index d49092d94d..c4a64278a1 100644
--- a/cache.h
+++ b/cache.h
@@ -977,7 +977,7 @@ static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
 
 static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2)
 {
-	return hashcmp(oid1->hash, oid2->hash);
+	return memcmp(oid1->hash, oid2->hash, the_hash_algo->rawsz);
 }
 
 static inline int is_null_sha1(const unsigned char *sha1)
@@ -992,7 +992,7 @@ static inline int is_null_oid(const struct object_id *oid)
 
 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
 {
-	memcpy(sha_dst, sha_src, GIT_SHA1_RAWSZ);
+	memcpy(sha_dst, sha_src, the_hash_algo->rawsz);
 }
 
 static inline void oidcpy(struct object_id *dst, const struct object_id *src)
@@ -1009,7 +1009,7 @@ static inline struct object_id *oiddup(const struct object_id *src)
 
 static inline void hashclr(unsigned char *hash)
 {
-	memset(hash, 0, GIT_SHA1_RAWSZ);
+	memset(hash, 0, the_hash_algo->rawsz);
 }
 
 static inline void oidclr(struct object_id *oid)