34 Execution control library [exec]

get_delegation_scheduler asks a queryable object for a scheduler that can be used to delegate work to for the purpose of forward progress delegation ([intro.progress]).

The name get_delegation_scheduler denotes a query object.

For a subexpression env, get_delegation_scheduler(env) is expression-equivalent to MANDATE-NOTHROW(as_const(env).query(get_delegation_scheduler)).

Mandates: If the expression above is well-formed, its type satisfies scheduler.

forwarding_query(execution​::​get_delegation_scheduler) is a core constant expression and has value true.