week 2 almost finished

1 files changed, 22 insertions, 0 deletions

diff --git a/week2/mart/VectorOverloading.icl b/week2/mart/VectorOverloading.icl
new file mode 100644
index 0000000..74f6f69
--- /dev/null
+++ b/week2/mart/VectorOverloading.icl
@@ -0,0 +1,22 @@
+implementation module VectorOverloading

+

+import StdEnv

+

+:: Vector2 a = {x0 :: a, x1 :: a}

+

+instance ==   (Vector2 a) | == a   where

+	== a b = a.x0 == b.x0 && a.x1 == b.x1

+instance zero (Vector2 a) | zero a where

+	zero = {x0=zero, x1=zero}

+instance one  (Vector2 a) | one a  where

+	one = {x0=one, x1=one}

+instance ~    (Vector2 a) | ~ a    where

+	~ a = {x0= ~a.x0, x1= ~a.x1}

+instance +    (Vector2 a) | + a    where

+	+ a b = {x0=a.x0+b.x0, x1=a.x1+b.x1}

+instance -    (Vector2 a) | - a    where

+	- a b = {x0=a.x0-b.x0, x1=a.x1-b.x1}

+instance *    (Vector2 a) | * a    where

+	* a b = {x0=a.x0*b.x0, x1=a.x1*b.x1}

+instance /    (Vector2 a) | / a    where

+	/ a b = {x0=a.x0/b.x0, x1=a.x1/b.x1}