int main () {
    const    char* NIL = 0 ;
    Display* dpy           ;
    Window   w             ;
    Pixmap   bm0           ;
    Colormap cmap          ;
    uint32_t white         ;
    uint32_t black         ;
    char     data[8] = {0} ;
    dpy     = XOpenDisplay(NIL) ;
    if (dpy == 0) throw 0x01 ;
    white   = WhitePixel (dpy,DefaultScreen(dpy)) ;
    black   = BlackPixel (dpy,DefaultScreen(dpy)) ;
    w       = XCreateSimpleWindow(dpy, RootWindow(dpy,0), 0,0, 640,480, 0, 0, black);

    bm0  = XCreatePixmap   (dpy,w,64,64,1 ) ;          //leaks
    // bm0  = XCreatePixmap   (dpy,w,64,64,24) ;       //doesn' leak
    // bm0  = XCreateBitmapFromData (dpy,w,data,8,8) ; //leaks

    XFreePixmap  (dpy,bm0) ;
    XDestroyWindow(dpy,w) ;
    XCloseDisplay (dpy)   ;
    return 0 ;
}