From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 6 Nov 2013 09:23:31 +0000 (+0200)
Subject: Add a function to remove an item from a map, checking for existence
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=85c6b143c9b85ce09ee4f3cb842d3ae006b7a6fe;p=libs%2Fcore.git

Add a function to remove an item from a map, checking for existence
---

diff --git a/source/core/maputils.h b/source/core/maputils.h
index 0f863b4..ecee0fb 100644
--- a/source/core/maputils.h
+++ b/source/core/maputils.h
@@ -83,6 +83,15 @@ const typename T::iterator insert_unique(T &map, const typename T::key_type &key
 	return map.insert(typename T::value_type(key, item)).first;
 }
 
+template<typename T>
+void remove_existing(T &map, const typename T::key_type &key)
+{
+	if(!map.count(key))
+		throw key_error(key);
+
+	map.erase(key);
+}
+
 } // namespace Msp
 
 #endif