+ (setq arg-hi `(,(ecase *read-default-float-format*
+ (double-float (load-time-value (make-unportable-float :double-float-negative-zero)))
+ #!+long-float
+ (long-float (load-time-value (make-unportable-float :long-float-negative-zero)))))
+ arg-hi-val (ecase *read-default-float-format*
+ (double-float (load-time-value (make-unportable-float :double-float-negative-zero)))
+ #!+long-float
+ (long-float (load-time-value (make-unportable-float :long-float-negative-zero))))))