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- experimental 5.34.0~rc2-1
| SelectSaver(3perl) | Perl Programmers Reference Guide | SelectSaver(3perl) |
NAME¶
SelectSaver - save and restore selected file handleSYNOPSIS¶
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.
| 2020-07-21 | perl v5.28.1 |