Defined in header <execution>
template< class T >
struct is_execution_policy;
(since C++17)

Checks whether T is a standard or implementation-defined execution policy type.

Provides the member constant value which is equal to true, if T is std::execution::sequenced_policy, std::execution::parallel_policy, std::execution::parallel_unsequenced_policy, or an implementation-defined execution policy type. Otherwise, value is equal to false.

The behavior of a program that adds specializations for std::is_execution_policy is undefined.

Template parameters

T - a type to check

Helper template

Defined in header <execution>
template< class T >
inline constexpr bool is_execution_policy_v = std::is_execution_policy<T>::value;
(since C++17)

Inherited from std::integral_constant

Member constants

true if T is a standard or implementation-defined execution policy type , false otherwise
(public static member constant)

Member functions

operator bool
converts the object to bool, returns value
(public member function)
returns value
(public member function)

Member types

Type Definition
value_type bool
type std::integral_constant<bool, value>

See also

execution policy types
global execution policy objects

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