diff --git a/gcc/rust/typecheck/rust-tyty.h b/gcc/rust/typecheck/rust-tyty.h index 8bfa83da8d8..da4b901724d 100644 --- a/gcc/rust/typecheck/rust-tyty.h +++ b/gcc/rust/typecheck/rust-tyty.h @@ -177,7 +177,7 @@ public: virtual BaseType *clone () const = 0; // Check if TyTy::BaseType is of a specific type. - template <typename T>[[nodiscard]] bool is () const + template <typename T> WARN_UNUSED_RESULT bool is () const { static_assert (std::is_base_of<BaseType, T>::value, "Can only safely cast to TyTy types.");