1 files changed, 4 insertions, 0 deletions

diff --git a/src/common/concepts.h b/src/common/concepts.h
index 5bef3ad67..aa08065a7 100644
--- a/src/common/concepts.h
+++ b/src/common/concepts.h
@@ -31,4 +31,8 @@ concept DerivedFrom = requires {
     std::is_convertible_v<const volatile Derived*, const volatile Base*>;
 };
 
+// TODO: Replace with std::convertible_to when libc++ implements it.
+template <typename From, typename To>
+concept ConvertibleTo = std::is_convertible_v<From, To>;
+
 } // namespace Common