...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
A customisation point that is used to obtain a sender from a scheduler.
constexpr unspecified schedule = unspecified;
execution::schedule denotes a customisation point object.
For some subexpression
S be a type such
S. The expression
is expression-equivalent to:
s.schedule(), if that expression is valid and its type models
schedule(s), if that expression is valid and its type models
senderwith overload resolution performed in a context that includes the declaration
void schedule();and that does not include a declaration of