SelectSaver(3perl) Perl Programmers Reference Guide SelectSaver(3perl)
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.
perl v5.34.0 2023-11-23 SelectSaver(3perl)
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