23 General utilities library [utilities]

23.19 Execution policies [execpol]

23.19.5 Parallel execution policy [execpol.par]

class execution::parallel_policy { unspecified };

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The class execution​::​parallel_­policy is an execution policy type used as a unique type to disambiguate parallel algorithm overloading and indicate that a parallel algorithm's execution may be parallelized.

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During the execution of a parallel algorithm with the execution​::​parallel_­policy policy, if the invocation of an element access function exits via an uncaught exception, terminate() shall be called.