Extends the standard
make-sequence function allowing it to take any type specifier.
make-sequence result-type size &key initial-element => sequence
A type specifier.
A non-negative integer.
make-sequence has been extended to take any Common Lisp type. The sequence will be of type result-type unless this is not possible, in which case a
type-error is signaled.
LispWorks User Guide and Reference Manual - 13 Feb 2015