Fix issue: Brick __brick_copy specialized by _ExecutionPolicy without std::decay_t #2110

Author: SergeyKopienko

include/oneapi/dpl/internal/async_impl/glue_async_impl.h

@@ -77,12 +77,14 @@ auto
 copy_async(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result,
            _Events&&... __dependencies)
 {
+    using _DecayedExecutionPolicy = std::decay_t<_ExecutionPolicy>;
+
     auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first, __result);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
     auto ret_val = oneapi::dpl::__internal::__pattern_walk2_brick_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
-        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _ExecutionPolicy>{});
+        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _DecayedExecutionPolicy>{});
     return ret_val;
 }
 

include/oneapi/dpl/pstl/glue_algorithm_impl.h

@@ -268,11 +268,13 @@ template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterato
 oneapi::dpl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
 copy(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result)
 {
+    using _DecayedExecutionPolicy = std::decay_t<_ExecutionPolicy>;
+
     auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first, __result);
 
     return oneapi::dpl::__internal::__pattern_walk2_brick(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
-        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _ExecutionPolicy>{});
+        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _DecayedExecutionPolicy>{});
 }
 
 template <class _ExecutionPolicy, class _ForwardIterator1, class _Size, class _ForwardIterator2>

include/oneapi/dpl/pstl/glue_algorithm_ranges_impl.h

@@ -794,11 +794,13 @@ template <typename _ExecutionPolicy, typename _Range1, typename _Range2>
 oneapi::dpl::__internal::__enable_if_execution_policy<_ExecutionPolicy>
 copy(_ExecutionPolicy&& __exec, _Range1&& __rng, _Range2&& __result)
 {
+    using _DecayedExecutionPolicy = std::decay_t<_ExecutionPolicy>;
+
     auto __dispatch_tag = oneapi::dpl::__ranges::__select_backend(__exec, __rng, __result);
 
     oneapi::dpl::__internal::__ranges::__pattern_walk_n(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec),
-        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _ExecutionPolicy>{},
+        oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _DecayedExecutionPolicy>{},
         views::all_read(::std::forward<_Range1>(__rng)), views::all_write(::std::forward<_Range2>(__result)));
 }