33 Execution control library [exec]

33.5 Queries [exec.queries]

33.5.6 execution​::​get_scheduler [exec.get.scheduler]

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get_scheduler asks a queryable object for its associated scheduler.
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The name get_scheduler denotes a query object.
For a subexpression env, get_scheduler(env) is expression-equivalent to MANDATE-NOTHROW(as_const(env).query(get_scheduler)).
Mandates: If the expression above is well-formed, its type satisfies scheduler.
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forwarding_query(execution​::​get_scheduler) is a core constant expression and has value true.