write-byte byte stream → byte

byte — an integer of the stream element type of stream.

stream — a binary output stream.

write-byte writes one byte, byte, to stream.

(with-open-file (s "temp-bytes" 
                   :direction :output 
                   :element-type 'unsigned-byte) 
   (write-byte 101 s)) → 101

stream is modified.

The element type of the stream.

Should signal an error of type type-error if stream is not a stream. Should signal an error of type error if stream is not a binary output stream.

Might signal an error of type type-error if byte is not an integer of the stream element type of stream.

read-byte, write-char, write-sequence