Warning C26812: Enum type is unscoped. Prefer enum class over enum

Question

It is puzzling me as to why am I getting this warning at all. I do not even have enumerations in my entire code?

#include <SFML/Graphics.hpp>
#include <vector>

using sf::RenderWindow;
using sf::VideoMode;
using sf::Event;
using std::vector;
using sf::Vector2f;
using sf::RectangleShape;
using sf::CircleShape;
using sf::Color;
using sf::Keyboard;

int main()
{
    RenderWindow window(VideoMode(720, 640), "Shooter game w Projectiles.");
    window.setFramerateLimit(60);

    CircleShape player(50.f);
    player.setFillColor(Color::White);
    player.setPosition((window.getSize().x / 2.f) - (player.getRadius()), (window.getSize().y - player.getRadius() * 2) - 10.f);

    CircleShape bullet(5.f);
    bullet.setFillColor(Color::Red);

    vector<CircleShape> playerBullets;
    playerBullets.push_back(bullet);

    RectangleShape enemy(Vector2f(30.f, 30.f));
    enemy.setFillColor(Color::Magenta);
    enemy.setPosition(320, 200);

    vector<RectangleShape> enemies;
    enemies.push_back(enemy);

    enemy.setFillColor(Color::Blue);
    enemy.setPosition(160, 100);
    enemies.push_back(enemy);

    while (window.isOpen())
    {
        Event event;
        while (window.pollEvent(event))
        {
            if (event.type == Event::Closed)
            {
                window.close();
            }
        }

        if (Keyboard::isKeyPressed(Keyboard::Escape))
        {
            window.close();
        }

        // Update
        Vector2f playerCenter = Vector2f(player.getPosition().x + player.getRadius(), player.getPosition().y + player.getRadius());

        // Clear
        window.clear();

        // Draw
        window.draw(player);
        for (size_t i = 0; i < enemies.size(); ++i)
        {
            window.draw(enemies[i]);
        }

        for (size_t i = 0; i < playerBullets.size(); ++i)
        {
            window.draw(playerBullets[i]);
        }
        

        // Display
        window.display();
    }
}

This is the warning that I get: The enum type 'sf::PrimitiveType' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
It warns me on line number 79, which basically is the new line after the main function closing bracket?

Answer 1

Unfortunately, this warning comes from the header file SFML\Graphics.hpp and the only option is to contact the SFML developers and ask them to fix this warning as suggested by @spectras in the comment section.

There is no solution that I can implement that will solve the warning. However, it is best to disable all the warnings coming from this third party header file by encapsulating it within two pragma statements:

#pragma warning(push, 0)
#include <SFML/Graphics.hpp>
#pragma warning(pop)

With thanks to @Thrasher for providing me with the link in the comment section. Here, is the link:
https://blog.bytellect.com/software-development/c-cplusplus/disabling-warnings-from-legacy-and-third-party-header-files/