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A customisation point that is used to obtain a sender from a scheduler.
constexpr unspecified schedule = unspecified;
The name execution::schedule denotes a customisation point object.
For some subexpression s, let S be a type such
that decltype((s)) is S. The expression execution::schedule(s)
is expression-equivalent to:
s.schedule(), if that expression is valid and its type models
sender.
schedule(s), if that expression is valid and
its type models sender with overload resolution performed
in a context that includes the declaration void schedule();
and that does not include a declaration of execution::schedule.
S if S satisfies executor.
execution::schedule(s) is ill-formed.
Header: asio/execution/schedule.hpp
Convenience header: asio/execution.hpp