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Man Pages


Manual Reference Pages  -  SELECTSAVER (3)

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NAME

SelectSaver - save and restore selected file handle

CONTENTS

SYNOPSIS



    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



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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perl v5.22.1 SELECTSAVER (3) 2015-10-17

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