table of contents
SelectSaver(3pm) | Perl Programmers Reference Guide | SelectSaver(3pm) |
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.
2024-07-03 | perl v5.40.0 |