Помогите новенькому !!

#import <Foundation/Foundation.h>
 
typedef enum
{
    kCircle,
    kRectangle
}ShapeType;
 
typedef struct
{
    int x,y, width, height;
    
}ShapeRect;
 
typedef struct
{
    ShapeType type;
    ShapeRect bounds;
}Shape;
 
int main(int argc, const char *argv[])
{
 
    Shape shapes[2];
    
    ShapeRect rect0={0,0,10,20};
    shapes[0].type=kCircle;
    shapes[0].bounds=rect0;
    
    ShapeRect rect1={10,15,4,10};
    shapes[1].type=kRectangle;
    shapes[1].bounds=rect1;
    
    drawShapes (shapes,2);
    return (0);
    
    
    
    
  
}//main
 
void drawShapes (Shape shapes[], int count)
 
{
    int i;
    
    for (i=0;i<count;i++)
    {
        
        switch (shapes[i].type)
        {
           case kCircle:
                drawCircle(shapes[i].bounds);
                break;
            case kRectangle:
                drawRectangle(shapes[i].bounds);
        }
      }
}
                     
void drawCircle(ShapeRect bounds)
{
  NSLog (@"Вывод окружности (%d %d %d %d)",
         bounds.x, bounds.y,
         bounds.width, bounds.height);
    
    
    
}//drawCircle
 
void drawRectangle (ShapeRect bounds)
{
    NSLog (@"Вывод ааа (%d %d %d %d)",
           bounds.x, bounds.y,
           bounds.width, bounds.height);
    
    
    
}//drawRectangle