get-output-stream-buffer

Arguments: stream &optional detach

Returns two values: the current value out of the output stream buffer for stream and the number of elements written to that buffer. If detach is true, the stream's buffer itself is removed and returned unchanged, and the stream is disabled, otherwise (by default) an (unsigned-byte 8) vector is made which is just large enough to hold the current contents of the stream, and the contents are transferred. Also when detach is nil, the stream is left in a state where it is empty and ready to accept further output to it.

See streams.htm for information on the stream implementation in Allegro CL.

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Created 2019.8.20.