C++ Progress bar, using new Fira Code inspired codepoints.

progress-bar-demo.cpp

#include <array>
#include <chrono>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <string_view>
#include <thread>

using namespace std;
using namespace std::chrono;

void paintProgressBar(float progress, int columnWidth)
{
    auto const filledColumns = static_cast<int>(floorf(progress * static_cast<float>(columnWidth)));
    if (filledColumns == 0)
        cout << "\uee00"; // left empty
    else
        cout << "\uee03"; // left filled

    int i = 1;
    while (i++ < min(filledColumns, columnWidth - 1))
        cout << "\uee04"; // middle filled

    while (i++ < columnWidth)
        cout << "\uee01"; // middle empty

    if (filledColumns >= columnWidth)
        cout << "\uee05"; // Right filled
    else
        cout << "\uee02"; // Right empty

    cout << " | " << int(progress * 100.0f) << '%';

    cout.flush();
}

int main()
{
    cout << "Progress bar demo: ";
    for (float progress = 0.0f; progress <= 1.0f + std::numeric_limits<float>::epsilon(); progress += 0.1f)
    {
        cout << "\0337"; // DECSC - save cursor
        paintProgressBar(progress, 10);
        this_thread::sleep_for(chrono::milliseconds(250));
        cout << "\0338"; // DECRS - restore cursor
    }
    cout << '\n';
    return EXIT_SUCCESS;
}