weird SDL

#include <SDL2/SDL.h>

#include <iostream>
using namespace std;

typedef struct MouseMotionEvent
{
    Uint32 type;        /**< ::SDL_MOUSEMOTION */
    Uint32 timestamp;
    Uint32 windowID;    /**< The window with mouse focus, if any */
    //Uint32 which;       /**< The mouse instance id, or SDL_TOUCH_MOUSEID */
    Uint32 state;       /**< The current button state */
    Sint32 x;           /**< X coordinate, relative to window */
    Sint32 y;           /**< Y coordinate, relative to window */
    Sint32 xrel;        /**< The relative motion in the X direction */
    Sint32 yrel;        /**< The relative motion in the Y direction */
} MouseMotionEvent;


typedef struct MouseButtonEvent
{
    Uint32 type;        /**< ::SDL_MOUSEBUTTONDOWN or ::SDL_MOUSEBUTTONUP */
    Uint32 timestamp;
    Uint32 windowID;    /**< The window with mouse focus, if any */
    //Uint32 which;       /**< The mouse instance id, or SDL_TOUCH_MOUSEID */
    Uint8 button;       /**< The mouse button index */
    Uint8 state;        /**< ::SDL_PRESSED or ::SDL_RELEASED */
    Uint8 padding1;
    Uint8 padding2;
    Sint32 x;           /**< X coordinate, relative to window */
    Sint32 y;           /**< Y coordinate, relative to window */
} MouseButtonEvent;


int main()
{
    SDL_GLContext rctx;

    if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) != 0)
    {
        return -1;
    }

    SDL_Window* win = SDL_CreateWindow("32 bit mouse test", 0, 0, 800, 600,
                                        SDL_WINDOW_SHOWN);
    SDL_Event   e;
    bool        quit = false;

    while(!quit)
    {
        while(SDL_PollEvent(&e))
        {
            switch(e.type)
            {
            case SDL_MOUSEMOTION:

                MouseMotionEvent mme;
                memcpy(&mme, &e, sizeof(MouseMotionEvent));
                //cout << "x: " << mme.x << "(" << mme.xrel << ")" << endl;
                //cout << "y: " << mme.y << "(" << mme.yrel << ")" << endl;
                break;
            case SDL_MOUSEBUTTONDOWN:
                MouseButtonEvent mbe;
                memcpy(&mbe, &e, sizeof(MouseButtonEvent));
                cout << "Pushed button: " << mbe.button << endl;
                break;
            case SDL_KEYDOWN:
            case SDL_QUIT:
                quit = true;
                break;
            default:
                break;
            }
        }
    }
    SDL_DestroyWindow(win);
    SDL_Quit();
    return 0;
}