From 13e065466aa456eb0e8f102ec21a4b9d9cbe61b2 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Tue, 1 Nov 2022 06:16:30 +0200
Subject: [PATCH] Mark fnv1a_hash as avalanching

---
 benchmark/string.cpp      | 5 ++++-
 benchmark/string_view.cpp | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/benchmark/string.cpp b/benchmark/string.cpp
index ff7288e4..19ab4eb8 100644
--- a/benchmark/string.cpp
+++ b/benchmark/string.cpp
@@ -370,7 +370,10 @@ template<> struct fnv1a_hash_impl<64>
     }
 };
 
-struct fnv1a_hash: fnv1a_hash_impl< std::numeric_limits<std::size_t>::digits > {};
+struct fnv1a_hash: fnv1a_hash_impl< std::numeric_limits<std::size_t>::digits >
+{
+    using is_avalanching = void;
+};
 
 template<class K, class V> using std_unordered_map_fnv1a =
 std::unordered_map<K, V, fnv1a_hash, std::equal_to<K>, allocator_for<K, V>>;
diff --git a/benchmark/string_view.cpp b/benchmark/string_view.cpp
index a07a699d..a7236782 100644
--- a/benchmark/string_view.cpp
+++ b/benchmark/string_view.cpp
@@ -371,7 +371,10 @@ template<> struct fnv1a_hash_impl<64>
     }
 };
 
-struct fnv1a_hash: fnv1a_hash_impl< std::numeric_limits<std::size_t>::digits > {};
+struct fnv1a_hash: fnv1a_hash_impl< std::numeric_limits<std::size_t>::digits >
+{
+    using is_avalanching = void;
+};
 
 template<class K, class V> using std_unordered_map_fnv1a =
 std::unordered_map<K, V, fnv1a_hash, std::equal_to<K>, allocator_for<K, V>>;