File: close.doc

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\DOC close

\TYPE {close : (string -> void)}

\SYNOPSIS
Closes an {ML} port.

\KEYWORDS
file.

\DESCRIBE
The function {close} closes a port that had been opened for
reading (by {openi}) or writing (by {openw} or {append_openw}).
Ports are represented by the strings that are returned by one of the
functions {append-openw}, {openi} and {openw}.

\FAILURE
Fails when the named port is not open.

\EXAMPLE
{
#openw `foo`;;
`%foo` : string

#close it;;
() : void
}
\SEEALSO
append_openw, openi, openw, read, write

\ENDDOC