lispdoc - results for error-output

*error-output*

Variable: error output stream

Example:

(defun bug (format-string &rest args)
  (apply #'format *error-output*
         (concatenate 'string "Bug in Iterate: "
                      format-string)
         args))

Mentioned in:
CLtL2 - 21.1. Standard Streams
CLtL2 - 25.1.1. Compiler Diagnostics
CLtL2 - 29.4.9. Warnings
HyperSpec - Variable *DEBUG-IO*, *ERROR-OUTPUT*, *QUERY-IO*, *STANDARD-INPUT*, *STANDARD-OUTPUT*, *TRACE-OUTPUT
PCL - other uses for conditions