The
sorted-object
class defines sorting operations.
Each element of sort-descriptions is a sort description object, as returned by make-sorting-description. These define various sorting options and are used by sorted-object-sort-by and sort-object-items-by.
make-sorting-description
sort-object-items-by
sorted-object-sort-by
sorted-object-sorted-by
CAPI Reference Manual - 15 Dec 2011