# Pointer in struct
struct Point
    x: *int,
    y: int,
end

    # Pointer in function parameter
fn take_ptr(ptr: *int) -> int do
  0  # dummy
end

# Pointer in return type
fn return_ptr(x: int) -> *int do
    x as *int
end

fn main() -> int do
    # Basic pointer
    let x: *int = 0 as *int;
    let y = x;  # Should infer *int

    # Reference and dereference
    let val = 42;
    let ptr = &val;  # Should be *int
    let deref_val = *ptr;  # Should be int

    let ptr_to_ptr: *(*int) = &ptr;  # **int

    let p = Point { x: ptr, y: 42 };

    take_ptr(ptr);

    let z = return_ptr(deref_val);

    # Nested operations
    let nested_ptr = &ptr;  # **int
    let deref_once = *nested_ptr;  # *int
    let deref_twice = *deref_once;  # int

    42
end