NetBurner Community Forum

Posted: **Mon Jan 21, 2019 5:29 am**

std::cout does not do a carriage return (\r) for output in MTTTY on my Windows 10 machine.
Previous versions always did.

For the code:

Code: Select all

    while (1)    {
        OSTimeDly(TICKS_PER_SECOND);
       std::cout << "one "<<endl << "two "<< endl ;
    }
}

I get this in the MTTTY window:

Code: Select all

It std::endl seems to work fine from within a std::stream, for example, the code:

Code: Select all

    std::ostringstream Reading;
    Reading <<"one "<<std::endl << "two "<< std::endl ;
    while (1)
    {
        OSTimeDly(TICKS_PER_SECOND);
       std::cout << Reading.str() <<"three "<< std::endl ;
    }
}

gives this output:

Code: Select all

one
two
three
      one
two
three
      one
two
three

I think std::endl should be consistent between std::streams and std::cout. That would save me having to put a "\r" into every std::cout statement.

Ed

Posted: **Mon Jan 21, 2019 10:46 am**

By definition in the C++ standard endl is \n....

The init call is supposed to modify stdout so \n turns into \r\n automagicall...

Is this happening after the init call?
(need to dig some more, there were some issue here and it may be broken again)

Posted: **Mon Jan 21, 2019 10:53 am**

Yes it is after init() call. Here is the whole thing.

Code: Select all

void UserMain(void *pd)
{
    init();                                       // Initialize network stack
    StartHttp();                                  // Start web server, default port 80
    WaitForActiveNetwork();

    iprintf("Application: %s\r\nNNDK Revision: %s\r\n", AppName, GetReleaseTag());
    ostringstream Reading;
    Reading <<"one "<<endl << "two "<< endl ;
    while (1)
    {
        OSTimeDly(TICKS_PER_SECOND);
       std::cout << Reading.str() <<"three "<< endl ;
    }
}

Posted: **Mon Jan 21, 2019 5:42 pm**

Have a fix, please submit a support ticket and I'll send you a patched file.

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