describe-object print-not-readable-object print-object print-unreadable-object standard-object structure-object make-instances-obsolete oddp class-of type-of end-of-file *break-on-signals* open with-open-file with-open-stream open-stream-p arithmetic-error-operands arithmetic-error-operation floating-point-invalid-operation special-operator-p optimize &optional nset-exclusive-or or set-exclusive-or y-or-n-p yes-or-no-p bit-orc1 boole-orc1 bit-orc2 boole-orc2 &allow-other-keys otherwise clear-output finish-output force-output *error-output* *standard-output* *trace-output* echo-stream-output-stream make-string-output-stream two-way-stream-output-stream output-stream-p get-output-stream-string with-output-to-string floating-point-overflow