Submits a completion token or function object for execution.

template<
    typename ExecutionContext,
    typename CompletionToken = DEFAULT>
DEDUCED defer(
    ExecutionContext & ctx,
    CompletionToken && token = DEFAULT,
    typename enable_if< is_convertible< ExecutionContext &, execution_context & >::value >::type *  = 0);

Return Value

defer(ctx.get_executor(), forward<CompletionToken>(token)).