Manual Reference Pages  - SelectSaver (3pm)

NAME

SelectSaver - save and restore selected file handle

CONTENTS

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.


perl v5.8.8 SelectSaver (3pm) 2001-09-21
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