A non-negative integer.
A character. The default is implementation-dependent.
A type specifier. The default is defined below.
The function make-string
behaves as specified in the ANSI Common Lisp Standard with one exception: the default value of element-type is the value of *default-character-element-type* or the type of initial-element if that is a supertype of *default-character-element-type*
Therefore for strict compliance you must call set-default-character-element-type to set the default string element type to character
.
LispWorks User Guide and Reference Manual - 20 Sep 2017