buffer-output-simple-stream

This class is a subclass of direct-simple-stream. This class describes a stream which writes from an octet buffer, in a similar manner to a string-output-simple-stream, which writes from a lisp string.

The options when creating an instance of this class are buffer and external-format. The buffer option can either be an octet buffer (a vector which is a simple-array with element type (unsigned-byte 8) or (signed-byte 8)), or nil. If it is nil, the stream acts like a counting bit-bucket; no output is generated, and so no overflow can occur, but the file-position of the stream can be queried at the end of the write. See with-output-to-buffer.

See streams.htm for general information on simple-streams in Allegro CL. See also make-buffer-output-stream.

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Created 2019.8.20.