The type of a vector that is not displaced to another array, has no fill pointer, is not expressly adjustable and is able to hold elements of any type is a subtype of type simple-vector.
The type simple-vector is a subtype of type vector,
and is a subtype of type (vector t).
Specializing.
(simple-vector{[size]})
| size | a non-negative fixnum, or the symbol *. The default is the symbol *. |
This is the same as (simple-array t (size)).