Closing Ports

The following procedures return #t if they successfully close a port or #f if it was already closed. They can also raise exceptions if an error occurs: some errors arising from writing output may be delayed until close. See also section Ports and File Descriptors, for a procedure which can close file descriptors.

primitive: close-port port

Close the specified port object.

primitive: close-input-port port

Close the specified input port object. This procedure is required by R4RS.

primitive: close-output-port port

Close the specified output port object. This procedure is required by R4RS.

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