http://www.perlmonks.org?node_id=739776


in reply to Re: Is print faster than syswrite?
in thread Is print faster than syswrite?

Actually, it acts on the currently select()d filehandle, which is generally STDOUT, but not always. That's why you still sometimes see the convoluted select((select(STDOUT),$|=1)[0]);

--
In Bob We Trust, All Others Bring Data.

Replies are listed 'Best First'.
Re^3: Is print faster than syswrite?
by ikegami (Patriarch) on Jan 29, 2009 at 07:23 UTC

    I know, I already said that. I wasn't making a general statement, I was talking about the variables in his program (STDOUT and FILE).

    And that convoluted bit? That's how autoflush does it too. (Well, a slightly safer variation.) I prefer to use autoflush cause it's way more readable.

[reply]
[d/l]
[select]
      >I know, I already said that

      Aye. 5 minutes before I did (so please excuse the lag, it took me awhile to find the correct incantation), and in a different node :-P. The statement "$| = 1; only affects STDOUT, not FILE" doesn;t convey an understanding of this though, which was I mentioned it.

      --
      In Bob We Trust, All Others Bring Data.

[reply]
        Oops, sorry, there was a much longer period between the time I wrote and the time I noticed your post.
[reply]

In Section Seekers of Perl Wisdom