Method: (STREAM-WRITE-BYTE CBUFFER-OUTPUT-STREAM T)

Source

(defmethod stream-write-byte ((stream cbuffer-output-stream) byte)
  (with-slots (pos (buf cbuffer)) stream
    (cbuffer-ensure-size buf (1+ pos))
    (setf (cbuffer-byte buf pos) byte
	  pos (1+ pos))
    (cbuffer-adjust-min-size buf pos))
  byte)