include/oneapi/dpl/pstl/glue_algorithm_impl.h - fix issue: Brick __brick_copy specialized by _ExecutionPolicy without std::decay_t

SergeyKopienko · SergeyKopienko · commit 4e231688fdc3 · 2025-03-06T18:09:49.000+01:00
#2110
diff --git a/include/oneapi/dpl/pstl/glue_algorithm_impl.h b/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>

Original file line number	Diff line number	Diff line change
`@@ -268,11 +268,13 @@ template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterato`
`268`	`268`	`oneapi::dpl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>`
`269`	`269`	`copy(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result)`
`270`	`270`	`{`
	`271`	`+ using _DecayedExecutionPolicy = std::decay_t<_ExecutionPolicy>;`
	`272`	`+`
`271`	`273`	`auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first, __result);`
`272`	`274`
`273`	`275`	`return oneapi::dpl::__internal::__pattern_walk2_brick(`
`274`	`276`	`__dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,`
`275`		`- oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _ExecutionPolicy>{});`
	`277`	`+ oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _DecayedExecutionPolicy>{});`
`276`	`278`	`}`
`277`	`279`
`278`	`280`	`template <class _ExecutionPolicy, class _ForwardIterator1, class _Size, class _ForwardIterator2>`