Re: Displaying progress dots in ANSI C++

From:

"Victor Bazarov" <v.Abazarov@comAcast.net>

Newsgroups:

comp.lang.c++

Date:

Fri, 16 Jun 2006 11:35:15 -0400

Message-ID:

<e6uj3l$f82$1@news.datemas.de>

ambros.gleixner@googlemail.com wrote:

I was wondering if (in pure command line, "non-visual" C++) there is a
simple way of regularly calling an output function in the background
while a process, e.g. loading of a huge file, is running. I am
thinking of displaying a classical

Loading.....

output where every second a new dot is displayed, for instance, maybe
starting anew after 10 dots or something.

I hope this is the appropriate group to post to...thanks for your
help, ambros

   int iteration = 0;
      ... // long process start
      if (figure_out_that_another_second_passed)
      {
          int ndots = ++iteration % 10;
          std::cout << "\rLoading" << std::string(ndots, '.');
          std::cout.flush();
      }

There is no other way. If your OS supports threading, you could try
doing output in another thread and synchronize them somehow, but C++
language doesn't define any threading, you need to ask in another NG,
line one that's dedicated to your OS.

V
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