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| ;; It is often said that Lisp macros need not be used for optimization purposes. This | |
| ;; is an exception. SBCL issued the following warning when compiling the MAKE-ARRAY call | |
| ;; below: | |
| ;; ; note: unable to optimize because: ELEMENT-TYPE is not constant. | |
| ;; I don't want to lose the ability to decide which ELEMENT-TYPE to use by using | |
| ;; an :ELEMENT-TYPE argument, so I have to arrange for this argument to be processed | |
| ;; at compile time. |