Try adding a deduction guide

akukanov · akukanov · commit 0ee4a9514be7 · 2025-05-03T14:24:19.000+02:00
diff --git a/include/oneapi/dpl/pstl/hetero/dpcpp/parallel_backend_sycl_utils.h b/include/oneapi/dpl/pstl/hetero/dpcpp/parallel_backend_sycl_utils.h
@@ -826,6 +826,9 @@ class __future : private std::tuple<_Args...>
         return __future<_Event, _T, _Args...>(__my_event, new_tuple);
     }
 };
+// Deduction guide for __future
+template<typename Event, typename... _UArgs>
+__future(_Event, _UArgs&&...) -> __future<_Event, std::remove_cv_t<std::remove_reference_t<_UArgs>>...>;
 
 // Invoke a callable and pass a compile-time integer based on a provided run-time integer.
 // The compile-time integer that will be provided to the callable is defined as the smallest

Original file line number	Diff line number	Diff line change
`@@ -826,6 +826,9 @@ class __future : private std::tuple<_Args...>`
`826`	`826`	`return __future<_Event, _T, _Args...>(__my_event, new_tuple);`
`827`	`827`	`}`
`828`	`828`	`};`
	`829`	`+// Deduction guide for __future`
	`830`	`+template<typename Event, typename... _UArgs>`
	`831`	`+__future(_Event, _UArgs&&...) -> __future<_Event, std::remove_cv_t<std::remove_reference_t<_UArgs>>...>;`
`829`	`832`
`830`	`833`	`// Invoke a callable and pass a compile-time integer based on a provided run-time integer.`
`831`	`834`	`// The compile-time integer that will be provided to the callable is defined as the smallest`