Add Bounded impl for Vectors and Points

src/point.rs

@@ -17,7 +17,7 @@
 //! disinguishes them from vectors, which have a length and direction, but do
 //! not have a fixed position.
 
-use num_traits::NumCast;
+use num_traits::{NumCast, Bounded};
 use std::fmt;
 use std::mem;
 use std::ops::*;
@@ -195,6 +195,18 @@ macro_rules! impl_point {
             }
         }
 
+        impl<S: Bounded> Bounded for $PointN<S> {
+            #[inline]
+            fn min_value() -> $PointN<S> {
+                $PointN { $($field: S::min_value()),+ }
+            }
+
+            #[inline]
+            fn max_value() -> $PointN<S> {
+                $PointN { $($field: S::max_value()),+ }
+            }
+        }
+
         impl_operator!(<S: BaseNum> Add<$VectorN<S> > for $PointN<S> {
             fn add(lhs, rhs) -> $PointN<S> { $PointN::new($(lhs.$field + rhs.$field),+) }
         });

src/vector.rs

@@ -14,7 +14,7 @@
 // limitations under the License.
 
 use rand::{Rand, Rng};
-use num_traits::NumCast;
+use num_traits::{NumCast, Bounded};
 use std::fmt;
 use std::iter;
 use std::mem;
@@ -223,6 +223,18 @@ macro_rules! impl_vector {
             }
         }
 
+        impl<S: Bounded> Bounded for $VectorN<S> {
+            #[inline]
+            fn min_value() -> $VectorN<S> {
+                $VectorN { $($field: S::min_value()),+ }
+            }
+
+            #[inline]
+            fn max_value() -> $VectorN<S> {
+                $VectorN { $($field: S::max_value()),+ }
+            }
+        }
+
         impl_operator!(<S: BaseNum> Add<$VectorN<S> > for $VectorN<S> {
             fn add(lhs, rhs) -> $VectorN<S> { $VectorN::new($(lhs.$field + rhs.$field),+) }
         });