34 Execution control library [exec]

set_stopped is a stopped completion function ([exec.async.ops]).

Its associated completion tag is set_stopped_t.

The expression set_stopped(rcvr) for a subexpression rcvr is ill-formed if rcvr is an lvalue or an rvalue of const type.

Otherwise, it is expression-equivalent to MANDATE-NOTHROW(rcvr.set_stopped()).