From: Vladimír Čunát <vladimir.cunat@nic.cz>
Date: Mon, 22 Jan 2018 14:58:24 +0000 (+0100)
Subject: lib map: comment around the change in parent commit
X-Git-Tag: v2.0.0~22^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b89e3474d350c8ff3da5ed5866b0bb08395473b;p=thirdparty%2Fknot-resolver.git

lib map: comment around the change in parent commit
---

diff --git a/lib/generic/map.c b/lib/generic/map.c
index 4920bb2a9..73de090a3 100644
--- a/lib/generic/map.c
+++ b/lib/generic/map.c
@@ -118,6 +118,7 @@ static cb_data_t *cbt_make_data(map_t *map, const uint8_t *str, size_t len, void
 	return x;
 }
 
+/*! Like map_contains, but also set the value, if passed and found. */
 static int cbt_get(map_t *map, const char *str, void **value)
 {
 	const uint8_t *ubytes = (void *)str;
diff --git a/lib/generic/map.h b/lib/generic/map.h
index dc459f5ef..9a4c3c08d 100644
--- a/lib/generic/map.h
+++ b/lib/generic/map.h
@@ -76,7 +76,7 @@ map_t map_make(void);
 /** Returns non-zero if map contains str */
 int map_contains(map_t *map, const char *str);
 
-/** Returns value if map contains str */
+/** Returns value if map contains str.  Note: NULL may mean two different things. */
 void *map_get(map_t *map, const char *str);
 
 /** Inserts str into map, returns 0 on suceess */