pack-objects: use strcspn(3) in name_cmp_len()

Call strcspn(3) to find the length of a string terminated by NUL, NL or slash instead of open-coding it. Adopt its return type, size_t, to support strings of arbitrary length. Use that type in callers as well for variables and function parameters that receive the return value. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

René Scharfe committed Feb 5, 2023 at 11:42 UTC e65b868d074a38b3049529064bb05df53948761f
1 file changed +5 -8
builtin/pack-objects.c
+5 -8
@@ -1708,17 +1708,14 @@ static void pbase_tree_put(struct pbase_tree_cache *cache)
1708 free(cache);
1709 }
1710
1711 -static int name_cmp_len(const char *name)
1711 +static size_t name_cmp_len(const char *name)
1712 {
1713 - int i;
1714 - for (i = 0; name[i] && name[i] != '\n' && name[i] != '/'; i++)
1715 - ;
1716 - return i;
1713 + return strcspn(name, "\n/");
1714 }
1715
1716 static void add_pbase_object(struct tree_desc *tree,
1717 const char *name,
1721 - int cmplen,
1718 + size_t cmplen,
1719 const char *fullname)
1720 {
1721 struct name_entry entry;
@@ -1743,7 +1740,7 @@ static void add_pbase_object(struct tree_desc *tree,
1740 struct tree_desc sub;
1741 struct pbase_tree_cache *tree;
1742 const char *down = name+cmplen+1;
1746 - int downlen = name_cmp_len(down);
1743 + size_t downlen = name_cmp_len(down);
1744
1745 tree = pbase_tree_get(&entry.oid);
1746 if (!tree)
@@ -1795,7 +1792,7 @@ static int check_pbase_path(unsigned hash)
1792 static void add_preferred_base_object(const char *name)
1793 {
1794 struct pbase_tree *it;
1798 - int cmplen;
1795 + size_t cmplen;
1796 unsigned hash = pack_name_hash(name);
1797
1798 if (!num_preferred_base || check_pbase_path(hash))