From 41d0adb70e8ee8ca226716eeb7c877fc8f15e9ca Mon Sep 17 00:00:00 2001
From: Aki Tuomi <cmouse@desteem.org>
Date: Sun, 29 Nov 2015 12:22:11 +0200
Subject: [PATCH] Add has_key method

---
 pdns/iputils.hh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pdns/iputils.hh b/pdns/iputils.hh
index ed862b623b..63662128ac 100644
--- a/pdns/iputils.hh
+++ b/pdns/iputils.hh
@@ -547,6 +547,12 @@ public:
     insert(key_type(mask)).second = value;
   }
 
+  //<! check if given key is present in TreeMap
+  bool has_key(const key_type& key) const {
+    const node_type *ptr = lookup(key);
+    return ptr && ptr->first == key;
+  }
+
   //<! Returns "best match" for key_type, which might not be value
   const node_type* lookup(const key_type& value) const {
     return lookup(value.getNetwork(), value.getBits());
-- 
2.47.2