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SelectSaver
save and restore selected file handle

SelectSaver - save and restore selected file handle


NAME

SelectSaver - save and restore selected file handle


SYNOPSIS


    use SelectSaver;

    {

       my $saver = new SelectSaver(FILEHANDLE);

       # FILEHANDLE is selected

    }

    # previous handle is selected

    {

       my $saver = new SelectSaver;

       # new handle may be selected, or not

    }

    # previous handle is selected


DESCRIPTION

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.

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