Generalize mongo/util/map_util.h utilities to work with unordered maps, too.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/mongo/util/map_util.h b/src/mongo/util/map_util.h
index 8d401df6219..33579f4ede1 100644
--- a/src/mongo/util/map_util.h
+++ b/src/mongo/util/map_util.h
@@ -17,16 +17,14 @@
 
 #pragma once
 
-#include <map>
-
 namespace mongo {
 
 /*
  *  If "myMap" contains "key", returns "myMap[key]".  Otherwise, returns "defaultValue."
  */
-template <typename K, typename V>
-V mapFindWithDefault(const map<K,V>& myMap, const K& key, const V& defaultValue) {
-   typename std::map<K,V>::const_iterator it = myMap.find(key);
+template <typename M, typename K, typename V>
+V mapFindWithDefault(const M& myMap, const K& key, const V& defaultValue) {
+   typename M::const_iterator it = myMap.find(key);
    if(it == myMap.end())
        return defaultValue;
    return it->second;