basic SDL window with opengl context

sdl_opengl_window.cpp

#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>

#include <iostream>

constexpr float R = 0.2f;
constexpr float G = 0.4f;
constexpr float B = 0.9f;
constexpr float A = 1.0f;

void sdlContext(int width, int height, const char *title)
{
    std::cout << "SDL Window Creation\n";

    SDL_Init(SDL_INIT_VIDEO);

    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);

    SDL_Window *window = SDL_CreateWindow(title,
                                          SDL_WINDOWPOS_CENTERED,
                                          SDL_WINDOWPOS_CENTERED,
                                          width,
                                          height,
                                          SDL_WINDOW_OPENGL);

    SDL_GLContext context = SDL_GL_CreateContext(window);


    bool running{true};
    SDL_Event event;
    while (running)
    {
        while (SDL_PollEvent(&event))
        {
            if (event.type == SDL_QUIT)
                running = false;

            if (event.type == SDL_KEYDOWN)
            {
                switch (event.key.keysym.scancode)
                {
                case SDL_SCANCODE_ESCAPE:
                    running = false;
                    break;
                default:
                    break;
                }
            }
        }

        glClearColor(R, G, B, A);
        glClear(GL_COLOR_BUFFER_BIT);

        SDL_GL_SwapWindow(window);
    }

    SDL_GL_DeleteContext(context);
    SDL_Quit();
}

int main(int argc, char *argv[])
{
    int width = 640;
    int height = 480;
    const char *title = "Hello World!";

    sdlContext(width, height, title);

    return 0;
}