CLHS: Function MAKE-TWO-WAY-STREAM

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Function MAKE-TWO-WAY-STREAM

Syntax:

make-two-way-stream input-stream output-stream => two-way-stream

Arguments and Values:

input-stream---a stream.

output-stream---a stream.

two-way-stream---a two-way stream.

Description:

Returns a two-way stream that gets its input from input-stream and sends its output to output-stream.

Examples:

     (with-output-to-string (out)
        (with-input-from-string (in "input...")
          (let ((two (make-two-way-stream in out)))
            (format two "output...")
            (setq what-is-read (read two))))) =>  "output..."
     what-is-read =>  INPUT...

Side Effects: None.

Affected By: None.

Exceptional Situations:

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

See Also: None.

Notes: None.

The following X3J13 cleanup issue, not part of the specification, applies to this section:

- STREAM-ACCESS:ADD-TYPES-ACCESSORS

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