NVIDIA
diff --git a/‎libcudacxx/include/cuda/std/__concepts/concept_macros.h
+4 b/‎libcudacxx/include/cuda/std/__concepts/concept_macros.h
+4
diff --git a/‎libcudacxx/include/cuda/std/__iterator/bounded_iter.h
+1-1 b/‎libcudacxx/include/cuda/std/__iterator/bounded_iter.h
+1-1
@@ -90,6 +90,10 @@ extern _Tp __cccl_make_dependent;
 template <class _Impl, class... _Args>
 using __cccl_requires_expr_impl = decltype(__cccl_make_dependent<_Impl, _Args...>);
 
+template <typename _Tp>
+_LIBCUDACXX_HIDE_FROM_ABI constexpr void __cccl_unused(_Tp&&) noexcept
+{}
+
 // So that we can refer to the ::cuda::std namespace below
 _LIBCUDACXX_BEGIN_NAMESPACE_STD
 _LIBCUDACXX_END_NAMESPACE_STD
 
@@ -224,7 +224,7 @@ struct __bounded_iter
     return __iter >= __begin_ && __iter < __end_;
   }
 
-  template <class>
+  template <class, class>
   friend struct pointer_traits;
   _Iterator __current_; // current iterator
   _Iterator __begin_, __end_; // valid range represented as [begin, end)
Original file line number	Diff line number	Diff line change
`@@ -224,7 +224,7 @@ struct __bounded_iter`
`224`	`224`	`return __iter >= __begin_ && __iter < __end_;`
`225`	`225`	`}`
`226`	`226`
`227`		`- template <class>`
	`227`	`+ template <class, class>`
`228`	`228`	`friend struct pointer_traits;`
`229`	`229`	`_Iterator __current_; // current iterator`
`230`	`230`	`_Iterator __begin_, __end_; // valid range represented as [begin, end)`