tmp/tmphok2wpds/{from.md → to.md}
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### Unsequenced execution policy <a id="execpol.unseq">[[execpol.unseq]]</a>
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``` cpp
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class execution::unsequenced_policy { unspecified };
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```
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The class `unsequenced_policy` is an execution policy type used as a
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unique type to disambiguate parallel algorithm overloading and indicate
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that a parallel algorithm’s execution may be vectorized, e.g., executed
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on a single thread using instructions that operate on multiple data
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items.
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During the execution of a parallel algorithm with the
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`execution::unsequenced_policy` policy, if the invocation of an element
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access function exits via an uncaught exception, `terminate()` is
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called.
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