Standard library header <execution>

This header is part of the algorithm library.

is_execution_policy (C++17)	test whether a class represents an execution policy (class template)
Defined in namespace `execution`
sequenced_policyparallel_policyparallel_unsequenced_policyunsequenced_policy (C++17)(C++17)(C++17)(C++20)	execution policy types (class)
seqparpar_unsequnseq (C++17)(C++17)(C++17)(C++20)	global execution policy objects (constant)

Synopsis

namespace std {
  // execution policy type trait
  template<class T> struct is_execution_policy;
  template<class T>
  inline constexpr bool is_execution_policy_v = is_execution_policy<T>::value;
}
 
namespace std::execution {
  // sequenced execution policy
  class sequenced_policy;
 
  // parallel execution policy
  class parallel_policy;
 
  // parallel and unsequenced execution policy
  class parallel_unsequenced_policy;
 
  // unsequenced execution policy
  class unsequenced_policy;
 
  // execution policy objects
  inline constexpr sequenced_policy            seq{ /*unspecified*/ };
  inline constexpr parallel_policy             par{ /*unspecified*/ };
  inline constexpr parallel_unsequenced_policy par_unseq{ /*unspecified*/ };
  inline constexpr unsequenced_policy          unseq{ /*unspecified*/ };
}

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