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Man Pages
SelectSaver(3) Perl Programmers Reference Guide SelectSaver(3)

SelectSaver - save and restore selected file handle

    use SelectSaver;

    {
       my $saver = SelectSaver->new(FILEHANDLE);
       # FILEHANDLE is selected
    }
    # previous handle is selected

    {
       my $saver = SelectSaver->new;
       # new handle may be selected, or not
    }
    # previous handle is selected

A "SelectSaver" object contains a reference to the file handle that was selected when it was created. If its "new" method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged.

When a "SelectSaver" is destroyed, it re-selects the file handle that was selected when it was created.

2022-02-19 perl v5.34.1

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