P2079R10 Parallel scheduler

Author: jensmaurer

source/exceptions.tex

@@ -1128,8 +1128,11 @@
 whose continuation is not a handle to a coroutine
 whose promise type has an \tcode{unhandled_stopped} member function.
 
+\item%
+when \tcode{std::execution::get_parallel_scheduler} is called and
+\tcode{std::execution::system_context_replace\-ability::query_parallel_scheduler_backend()}
+returns a null pointer value\iref{exec.par.scheduler}.
 \end{itemize}
-
 \end{note}
 
 \pnum