1SelectSaver(3pm)       Perl Programmers Reference Guide       SelectSaver(3pm)
2
3
4

NAME

6       SelectSaver - save and restore selected file handle
7

SYNOPSIS

9           use SelectSaver;
10
11           {
12              my $saver = SelectSaver->new(FILEHANDLE);
13              # FILEHANDLE is selected
14           }
15           # previous handle is selected
16
17           {
18              my $saver = SelectSaver->new;
19              # new handle may be selected, or not
20           }
21           # previous handle is selected
22

DESCRIPTION

24       A "SelectSaver" object contains a reference to the file handle that was
25       selected when it was created.  If its "new" method gets an extra
26       parameter, then that parameter is selected; otherwise, the selected
27       file handle remains unchanged.
28
29       When a "SelectSaver" is destroyed, it re-selects the file handle that
30       was selected when it was created.
31
32
33
34perl v5.16.3                      2013-02-26                  SelectSaver(3pm)
Impressum