fix: import correctly the functional when using hash

InfiniBrains · Jul 14, 2023 · 18ee716 · 18ee716
1 parent 33a6048
commit 18ee716
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/core/datastructures/concepts.h b/core/datastructures/concepts.h
@@ -3,6 +3,7 @@
 
 #include <concepts>
 #include <type_traits>
+#include <functional>
 
 template <typename T>
 concept Hashable = requires(T a) {