SelectSaver(3p) | Perl Programmers Reference Guide | SelectSaver(3p)

# NAME

SelectSaver - save and restore selected file handle

# 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.

2009-10-12 | perl v5.40.1