assume boost::hash_value takes const T&

ValeevGroup · Feb 14, 2024 · 074dc6a · 074dc6a
1 parent 9f87160
commit 074dc6a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/SeQuant/core/hash.hpp b/SeQuant/core/hash.hpp
@@ -58,8 +58,8 @@ template <typename T, typename = std::void_t<>>
 struct has_boost_hash_value : std::false_type {};
 
 template <typename T>
-struct has_boost_hash_value<
-    T, std::void_t<decltype(sequant_boost::hash_value(std::declval<T>()))>>
+struct has_boost_hash_value<T, std::void_t<decltype(sequant_boost::hash_value(
+                                   std::declval<const T&>()))>>
     : std::true_type {};
 
 template <typename T, typename = std::void_t<>>