hash: fix "-Wsign-compare" warnings

There are a couple of trivial "-Wsign-compare" warnings in "hash.c". Fix
them.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/hash.c b/hash.c
index dd5ac9d0eb..4d9f98f72c 100644
--- a/hash.c
+++ b/hash.c
@@ -1,5 +1,4 @@
 #define USE_THE_REPOSITORY_VARIABLE
-#define DISABLE_SIGN_COMPARE_WARNINGS
 
 #include "git-compat-util.h"
 #include "hash.h"
@@ -246,10 +245,9 @@ const char *empty_tree_oid_hex(const struct git_hash_algo *algop)
 
 int hash_algo_by_name(const char *name)
 {
-	int i;
 	if (!name)
 		return GIT_HASH_UNKNOWN;
-	for (i = 1; i < GIT_HASH_NALGOS; i++)
+	for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
 		if (!strcmp(name, hash_algos[i].name))
 			return i;
 	return GIT_HASH_UNKNOWN;
@@ -257,17 +255,15 @@ int hash_algo_by_name(const char *name)
 
 int hash_algo_by_id(uint32_t format_id)
 {
-	int i;
-	for (i = 1; i < GIT_HASH_NALGOS; i++)
+	for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
 		if (format_id == hash_algos[i].format_id)
 			return i;
 	return GIT_HASH_UNKNOWN;
 }
 
-int hash_algo_by_length(int len)
+int hash_algo_by_length(size_t len)
 {
-	int i;
-	for (i = 1; i < GIT_HASH_NALGOS; i++)
+	for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
 		if (len == hash_algos[i].rawsz)
 			return i;
 	return GIT_HASH_UNKNOWN;