1 files changed, 10 insertions, 1 deletions
diff --git a/core/templates/pair.h b/core/templates/pair.h
index eb86e21b03..6d33213fe3 100644
--- a/core/templates/pair.h
+++ b/core/templates/pair.h
@@ -31,8 +31,8 @@
 #ifndef PAIR_H
 #define PAIR_H
 
+#include "core/templates/hashfuncs.h"
 #include "core/typedefs.h"
-
 template <class F, class S>
 struct Pair {
 	F first;
@@ -69,6 +69,15 @@ struct PairSort {
 	}
 };
 
+template <class F, class S>
+struct PairHash {
+	static uint32_t hash(const Pair<F, S> &P) {
+		uint64_t h1 = HashMapHasherDefault::hash(P.first);
+		uint64_t h2 = HashMapHasherDefault::hash(P.second);
+		return hash_one_uint64((h1 << 32) | h2);
+	}
+};
+
 template <class K, class V>
 struct KeyValue {
 	const K key;