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close(X)
closes the stream corresponding to X,
where X should be a stream object created by open/[3,4]
,
or a file specification passed to see/1
or tell/1
.
In the example:
see(foo), … close(foo)
foo will be closed. However, in the example:
open(foo, read, S), … close(foo)
an exception will be raised and foo will not be closed. See mpg-ref-close.
told/0
closes the current output stream. The current output stream is
then set to be user_output
.
seen/0
closes the current input stream. The current input stream is
then set to be user_input
.