Remove the inherent clone method from points.

Fix #458.

src/geometry/point.rs

@@ -19,7 +19,7 @@ use base::{DefaultAllocator, Scalar, VectorN};
 
 /// A point in a n-dimensional euclidean space.
 #[repr(C)]
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Point<N: Scalar, D: DimName>
 where DefaultAllocator: Allocator<N, D>
 {
@@ -41,17 +41,7 @@ impl<N: Scalar, D: DimName> Copy for Point<N, D>
 where
     DefaultAllocator: Allocator<N, D>,
     <DefaultAllocator as Allocator<N, D>>::Buffer: Copy,
-{}
-
-impl<N: Scalar, D: DimName> Clone for Point<N, D>
-where
-    DefaultAllocator: Allocator<N, D>,
-    <DefaultAllocator as Allocator<N, D>>::Buffer: Clone,
 {
-    #[inline]
-    fn clone(&self) -> Self {
-        Point::from(self.coords.clone())
-    }
 }
 
 #[cfg(feature = "serde-serialize")]
@@ -104,13 +94,6 @@ where
 impl<N: Scalar, D: DimName> Point<N, D>
 where DefaultAllocator: Allocator<N, D>
 {
-    /// Clones this point into one that owns its data.
-    #[inline]
-    #[deprecated(note = "This will be removed. Use the `.clone()` method from the `Clone` trait instead.")]
-    pub fn clone(&self) -> Point<N, D> {
-        Point::from(self.coords.clone_owned())
-    }
-
     /// Converts this point into a vector in homogeneous coordinates, i.e., appends a `1` at the
     /// end of it.
     ///

tests/geometry/point.rs

@@ -1,7 +1,13 @@
-#![cfg(feature = "arbitrary")]
 use na::{Point3, Vector3, Vector4};
 use num::Zero;
 
+#[test]
+fn point_clone() {
+    let p = Point3::new(1.0, 2.0, 3.0);
+    let p2 = p.clone();
+    assert_eq!(p, p2);
+}
+
 #[test]
 fn point_ops() {
     let a = Point3::new(1.0, 2.0, 3.0);
@@ -87,7 +93,10 @@ fn to_homogeneous() {
     assert_eq!(a.to_homogeneous(), expected);
 }
 
-quickcheck!(fn point_sub(pt1: Point3<f64>, pt2: Point3<f64>) -> bool {
+#[cfg(feature = "arbitrary")]
+quickcheck!(
+    fn point_sub(pt1: Point3<f64>, pt2: Point3<f64>) -> bool {
         let dpt = &pt2 - &pt1;
         relative_eq!(pt2, pt1 + dpt, epsilon = 1.0e-7)
-});
+    }
+);