buffer. It returns @var{table}.
@end defun
-@defun make-category-table &optional default-set
+@defun make-category-table
@tindex make-category-table
-This creates and returns an empty category table, using
-@var{default-set} as the default (for characters that don't specify
-their own sets). Initially no characters specify their own sets in this
-new table; that is what we mean by ``empty.''
+This creates and returns an empty category table. In an empty category
+table, no categories have been allocated, and no characters belong to
+any categories.
@end defun
@defun make-category-set categories