sdl class by godecho

#ifndef SDLVIDEO_H_ #define SDLVIDEO_H_ class SDLVideo {     public:                  ~SDLVideo();         static void init();     private:                  SDLVideo(); };    // SDLVideo #endif    // SDLVIDEO_H_ // *********************************************************** #include "SDLVideo.h" #include "SDL.h" #include <cstdlib>    // for exit() #include <iostream> SDLVideo::SDLVideo() {     if(SDL_InitSubSystem(SDL_INIT_VIDEO) == -1)     {         std::cerr << "InitSubSystem() failed. SDL Error: " << SDL_GetError() << std::endl;         exit(1);     } } SDLVideo::~SDLVideo() {     SDL_Quit(); } void SDLVideo::init() {     static SDLVideo sdlvideo;    // Calls constructor the constructor once, and only once. }