<p>
The built-in functions <code>append</code> and <code>copy</code> assist in
common slice operations.
For both functions, the result is independent of whether the memory referenced
by the arguments overlaps.
</p>

<p>
The <a href="#Function_types">variadic</a> function <code>append</code>
appends zero or more values <code>x</code> to a slice <code>s</code> of

pkg image, method (Rectangle) In(Rectangle) bool
pkg image, method (Rectangle) Inset(int) Rectangle
pkg image, method (Rectangle) Intersect(Rectangle) Rectangle
pkg image, method (Rectangle) Overlaps(Rectangle) bool
pkg image, method (Rectangle) Size() Point
pkg image, method (Rectangle) String() string
pkg image, method (Rectangle) Sub(Point) Rectangle
pkg image, method (Rectangle) Union(Rectangle) Rectangle