From: Amos Jeffries <yadij@users.noreply.github.com>
Date: Tue, 9 Oct 2018 11:36:14 +0000 (+0000)
Subject: Improve const correctness for hash_link (#300)
X-Git-Tag: SQUID_4_4~7
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=6a33737799a6a9f849cfe7bfffece7abec61826c;p=thirdparty%2Fsquid.git

Improve const correctness for hash_link (#300)

hash_link does not need to be modified to fetch its key
value. This allows display and fetch of hash keys for
objects which are const.
---

diff --git a/include/hash.h b/include/hash.h
index 53a74923c6..30eb962306 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -44,7 +44,7 @@ SQUIDCEXTERN void hashFreeMemory(hash_table *);
 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
diff --git a/lib/hash.cc b/lib/hash.cc
index 3a9c6bcbb1..487f4a61c6 100644
--- a/lib/hash.cc
+++ b/lib/hash.cc
@@ -314,7 +314,7 @@ hashPrime(int n)
  * return the key of a hash_link as a const string
  */
 const char *
-hashKeyStr(hash_link * hl)
+hashKeyStr(const hash_link * hl)
 {
     return (const char *) hl->key;
 }