Merge pull request #139 from bjz/update

Update for rustc 0.13.0-nightly

src/angle.rs

@@ -16,7 +16,7 @@
 //! Angle units for type-safe, self-documenting code.
 
 use std::fmt;
-use std::num::{One, one, Zero, zero, cast};
+use std::num::{One, one, Zero, zero, cast, Float};
 
 use approx::ApproxEq;
 use num::BaseFloat;

src/approx.rs

@@ -14,6 +14,7 @@
 // limitations under the License.
 
 use std::num;
+use std::num::Float;
 
 pub trait ApproxEq<T: Float> {
     fn approx_epsilon(_hack: Option<Self>) -> T {
@@ -34,7 +35,7 @@ macro_rules! approx_float(
         impl ApproxEq<$S> for $S {
              #[inline]
             fn approx_eq_eps(&self, other: &$S, epsilon: &$S) -> bool {
-                 num::abs(*self - *other) < *epsilon
+                 (*self - *other).abs() < *epsilon
             }
         }
     )

src/num.rs

@@ -17,6 +17,7 @@ use approx::ApproxEq;
 
 use std::cmp;
 use std::fmt;
+use std::num::{FloatMath, Int, Primitive};
 
 /// A trait providing a [partial ordering](http://mathworld.wolfram.com/PartialOrder.html).
 pub trait PartialOrd {

src/quaternion.rs

@@ -15,7 +15,7 @@
 
 use std::fmt;
 use std::mem;
-use std::num::{zero, one, cast};
+use std::num::{zero, one, cast, Float};
 
 use angle::{Angle, Rad, acos, sin, sin_cos, rad};
 use approx::ApproxEq;

src/rotation.rs

@@ -138,6 +138,7 @@ pub trait Rotation3<S: BaseNum>: Rotation<S, Vector3<S>, Point3<S>>
 /// use cgmath::{Matrix, ToMatrix2};
 /// use cgmath::{Rotation, Rotation2, Basis2};
 /// use cgmath::ApproxEq;
+/// use std::num::Float;
 ///
 /// // For simplicity, we will rotate the unit x vector to the unit y vector --
 /// // so the angle is 90 degrees, or π/2.

tests/matrix.rs

@@ -18,6 +18,7 @@
 extern crate cgmath;
 
 use cgmath::*;
+use std::num::Float;
 
 pub mod matrix2 {
     use cgmath::*;

tests/quaternion.rs

@@ -23,6 +23,8 @@ use cgmath::Quaternion;
 use cgmath::{Rad, rad, ApproxEq};
 use cgmath::Rotation3;
 
+use std::num::Float;
+
 #[test]
 fn to_matrix4()
 {

tests/sphere.rs

@@ -18,6 +18,7 @@
 extern crate cgmath;
 
 use cgmath::*;
+use std::num::FloatMath;
 
 #[test]
 fn test_intersection() {

tests/vector.rs

@@ -18,6 +18,7 @@
 extern crate cgmath;
 
 use cgmath::*;
+use std::num::{Float, FloatMath};
 
 #[test]
 fn test_from_value() {