From f3e680fc34c4b5b515879baed793f6bb7539816f Mon Sep 17 00:00:00 2001
From: Rich Lane <rlane@club.cc.cmu.edu>
Date: Sun, 26 Jan 2014 13:39:57 -0800
Subject: [PATCH] derive IterBytes for vectors, points, and angles

It's useful to be able to have types like `Vec3<i32>` as hashtable keys.
---
 src/cgmath/angle.rs  | 4 ++--
 src/cgmath/point.rs  | 4 ++--
 src/cgmath/vector.rs | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/cgmath/angle.rs b/src/cgmath/angle.rs
index 637c408..dbea325 100644
--- a/src/cgmath/angle.rs
+++ b/src/cgmath/angle.rs
@@ -23,8 +23,8 @@ use std::num::{One, one, Zero, zero, cast};
 
 use approx::ApproxEq;
 
-#[deriving(Clone, Eq, Ord)] pub struct Rad<S> { s: S }
-#[deriving(Clone, Eq, Ord)] pub struct Deg<S> { s: S }
+#[deriving(Clone, Eq, Ord, IterBytes)] pub struct Rad<S> { s: S }
+#[deriving(Clone, Eq, Ord, IterBytes)] pub struct Deg<S> { s: S }
 
 #[inline] pub fn rad<S: Float>(s: S) -> Rad<S> { Rad { s: s } }
 #[inline] pub fn deg<S: Float>(s: S) -> Deg<S> { Deg { s: s } }
diff --git a/src/cgmath/point.rs b/src/cgmath/point.rs
index 193a1ed..aa0a905 100644
--- a/src/cgmath/point.rs
+++ b/src/cgmath/point.rs
@@ -24,11 +24,11 @@ use array::*;
 use vector::*;
 
 /// A point in 2-dimensional space.
-#[deriving(Eq, Clone)]
+#[deriving(Eq, Clone, IterBytes)]
 pub struct Point2<S> { x: S, y: S }
 
 /// A point in 3-dimensional space.
-#[deriving(Eq, Clone)]
+#[deriving(Eq, Clone, IterBytes)]
 pub struct Point3<S> { x: S, y: S, z: S }
 
 
diff --git a/src/cgmath/vector.rs b/src/cgmath/vector.rs
index 59c5aa0..dadcb09 100644
--- a/src/cgmath/vector.rs
+++ b/src/cgmath/vector.rs
@@ -79,7 +79,7 @@ pub trait Vector
 // Utility macro for generating associated functions for the vectors
 macro_rules! vec(
     ($Self:ident <$S:ident> { $($field:ident),+ }, $n:expr) => (
-        #[deriving(Eq, Clone)]
+        #[deriving(Eq, Clone, IterBytes)]
         pub struct $Self<S> { $($field: S),+ }
 
         impl<$S: Primitive> $Self<$S> {