string
x => string
x--a string, a symbol, or a character.
string--a string.
Returns a string described by x; specifically:
then a string containing that one character is returned.
(string "already a string") => "already a string" (string 'elm) => "ELM" (string #\c) => "c"
In the case where a conversion is defined neither by this specification nor by the implementation, an error of type type-error is signaled.
coerce can be used to convert a sequence of characters to a string.
prin1-to-string, princ-to-string, write-to-string, or format (with a first argument of nil) can be used to get a string representation of a number or any other object.