@comment sys/resource.h
@comment BSD
@deftypefun int setpriority (int @var{class}, int @var{id}, int @var{priority})
-Set the priority of a class of processes; @var{class} and @var{id}
-specify which ones (see below).
+Set the priority of a class of processes to @var{priority}; @var{class}
+and @var{id} specify which ones (see below).
The return value is @code{0} on success and @code{-1} on failure. The
following @code{errno} error condition are defined for this function: