stapl::paragraph_impl::compute_promotion_wf< WF, GlobalVS, LocalVS, b > Struct Template Reference

Functor invoked by the task creation process. Compares the return types of the workfunction when given the global and local viewsets. If they differ the workfunction that task uses is changed to facilitate the promotion of the return value based on the localized viewset to a form valid in the global / enclosing scope. More...

Static Public Member Functions
template<typename ... ViewParams>
static result_type	apply (tg_callback const &, WF const &wf, ViewParams const &...)

Public Types
typedef WF	result_type

Detailed Description

template<typename WF, typename GlobalVS, typename LocalVS, bool b = std::is_same< typename wf_invoke<WF, GlobalVS>::result_type, typename wf_invoke<WF, LocalVS>::result_type >::value>
struct stapl::paragraph_impl::compute_promotion_wf< WF, GlobalVS, LocalVS, b >

Functor invoked by the task creation process. Compares the return types of the workfunction when given the global and local viewsets. If they differ the workfunction that task uses is changed to facilitate the promotion of the return value based on the localized viewset to a form valid in the global / enclosing scope.

Template Parameters

WF	The base workfunction type.
GlobalVS	The pre-localization view set type.
LocalVS	The post-localization view set type.
b	Computed boolean parameter that is true if the application of the workfunction of viewsets of type LocalVS and GlobalVS return the value type. Used to dispatch to the appropriate specialization.

Primary template matches the case when the return types of localized and non localized views are the same. No promotion wrapper is needed. The functor invocation is an identify operation.

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The documentation for this struct was generated from the following file:

• return_promotion.hpp