Groups | Search | Server Info | Keyboard shortcuts | Login | Register

Groups > comp.lang.java.programmer > #5430

Re: The greeting code in Java

Show key headers only | View raw

In article <4dfe0ce7$0$4853$426a74cc@news.free.fr>,
Aéris  <aeris@imirhil.fr> wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Le 19/06/2011 15:44, Saeed Amrollahi a écrit :

[ snip ]

> And in your code, I don't no if you know the difference, but std::endl
> is very very dangerous. It's not just equal to EOL but also flush the
> buffer.
> This bad shortcut lead to very poor i/o performances in most of
> applications, all outputs flushing continuously buffer instead just send
> EOL.

Huh.  There's actually an explicit "flush" in the implementation?  
Interesting.  How did you find this out?  I'm not a C++ expert but
had not come across a mention of this detail.

Of course, if writing prompts to stdout with the implicit assumption
that the program is being run interactively, flushing the buffer is
what one wants.

Just sayin'.

-- 
B. L. Massingill
ObDisclaimer:  I don't speak for my employers; they return the favor.

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 06:06 -0700
  Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 15:19 +0200
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 06:44 -0700
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 10:13 -0400
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 07:17 -0700
          Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:01 -0400
            Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:06 -0700
              Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 22:06 +0200
                Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 22:33 -0700
              Re: The greeting code in Java RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-06-20 16:36 +0100
              Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 12:25 -0400
                Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 13:00 -0400
                Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 15:24 -0400
              Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:23 +0000
          Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-19 16:25 -0400
            Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-19 17:22 -0400
        Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 12:08 -0400
        Re: The greeting code in Java "Nasser M. Abbasi" <nma@12000.org> - 2011-06-19 19:35 -0700
          Re: The greeting code in Java "Nasser M. Abbasi" <nma@12000.org> - 2011-06-19 21:41 -0700
        Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-20 01:02 -0400
      Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 16:51 +0200
        Re: The greeting code in Java Stanimir Stamenkov <s7an10@netscape.net> - 2011-06-19 18:06 +0300
          Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 17:24 +0200
            Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:37 -0400
            Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:40 -0400
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:05 -0700
        Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:21 +0000
  Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 10:31 -0400
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 11:36 -0700
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 15:03 -0400
        Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:22 +0000
          Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-21 07:44 +0000
            Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-21 09:34 +0000
              Re: The greeting code in Java Gene Wirchenko <genew@ocis.net> - 2011-06-21 07:47 -0700
            Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-21 20:43 +0000
              Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-22 08:35 +0000
                Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-22 20:04 +0000
  Re: The greeting code in Java Stanimir Stamenkov <s7an10@netscape.net> - 2011-06-19 19:07 +0300
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:08 -0700
  Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 13:07 -0400
    Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 13:11 -0400
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 14:19 -0400

csiph-web