selectsaver(3)
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.