Example: system_progress_bar

C++ example source code:

/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2021, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */


#include <mrpt/core/exceptions.h>
#include <mrpt/system/progress.h>

#include <iostream>
#include <thread>

void TestProgressBar()
{
    const int end = 400;
    const size_t barWidth = 30;

    for (int i = 0; i <= end; i++)
    {
        double p = double(i) / end;

        std::cout << "Progress: " << mrpt::system::progress(p, barWidth)
                  << mrpt::format(" %5.02f%%", 100 * p) << "\r";
        std::cout.flush();
        std::this_thread::sleep_for(std::chrono::milliseconds(5));
    }
    std::cout << std::endl;
}


int main()
{
    try
    {
        TestProgressBar();
        return 0;
    }
    catch (const std::exception& e)
    {
        std::cerr << mrpt::exception_to_str(e) << std::endl;
        return -1;
    }
}