/*
- * Copyright (C) 1996-2016 The Squid Software Foundation and contributors
+ * Copyright (C) 1996-2021 The Squid Software Foundation and contributors
*
* Squid software is distributed under GPLv2+ license and includes
* contributions from numerous individuals and organizations.
SQUIDCEXTERN void hashFreeItems(hash_table *, HASHFREE *);
SQUIDCEXTERN HASHHASH hash_string;
SQUIDCEXTERN HASHHASH hash4;
-SQUIDCEXTERN const char *hashKeyStr(hash_link *);
+SQUIDCEXTERN const char *hashKeyStr(const hash_link *);
/*
* Here are some good prime number choices. It's important not to