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>

Patrick Steinhardt committed Mar 10, 2025 at 08:13 UTC 8ca9fa60a63c97bb9397f5de294aef53df90e7a0
2 files changed +5 -9
hash.c
+4 -8
@@ -1,5 +1,4 @@
1 #define USE_THE_REPOSITORY_VARIABLE
2 -#define DISABLE_SIGN_COMPARE_WARNINGS
2
3 #include "git-compat-util.h"
4 #include "hash.h"
@@ -246,10 +245,9 @@ const char *empty_tree_oid_hex(const struct git_hash_algo *algop)
245
246 int hash_algo_by_name(const char *name)
247 {
249 - int i;
248 if (!name)
249 return GIT_HASH_UNKNOWN;
252 - for (i = 1; i < GIT_HASH_NALGOS; i++)
250 + for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
251 if (!strcmp(name, hash_algos[i].name))
252 return i;
253 return GIT_HASH_UNKNOWN;
@@ -257,17 +255,15 @@ int hash_algo_by_name(const char *name)
255
256 int hash_algo_by_id(uint32_t format_id)
257 {
260 - int i;
261 - for (i = 1; i < GIT_HASH_NALGOS; i++)
258 + for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
259 if (format_id == hash_algos[i].format_id)
260 return i;
261 return GIT_HASH_UNKNOWN;
262 }
263
267 -int hash_algo_by_length(int len)
264 +int hash_algo_by_length(size_t len)
265 {
269 - int i;
270 - for (i = 1; i < GIT_HASH_NALGOS; i++)
266 + for (size_t i = 1; i < GIT_HASH_NALGOS; i++)
267 if (len == hash_algos[i].rawsz)
268 return i;
269 return GIT_HASH_UNKNOWN;
hash.h
+1 -1
@@ -325,7 +325,7 @@ int hash_algo_by_name(const char *name);
325 /* Identical, except based on the format ID. */
326 int hash_algo_by_id(uint32_t format_id);
327 /* Identical, except based on the length. */
328 -int hash_algo_by_length(int len);
328 +int hash_algo_by_length(size_t len);
329 /* Identical, except for a pointer to struct git_hash_algo. */
330 static inline int hash_algo_by_ptr(const struct git_hash_algo *p)
331 {