From 4cc968489eb0acd9b5be7e1cdb06bdb8f300f102 Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@gmail.com>
Date: Sat, 26 Nov 2016 12:07:11 +0200
Subject: Complex number with addition

---
 src/lib.rs | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index cdfbe1a..1f29a24 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,33 @@
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Complex<T> {
+    real: T,
+    imag: T
+}
+
+impl<T: Clone> Complex<T> {
+    fn new(real: T, imag: T) -> Complex<T> {
+        Complex{real: real, imag: imag}
+    }
+}
+
+impl<T> std::ops::Add for Complex<T> where T: std::ops::Add<Output=T> + Copy {
+    type Output = Complex<T>;
+
+    fn add(self, other: Self) -> Self {
+        let real = self.real + other.real;
+        let imag = self.imag + other.imag;
+        Complex::new(real, imag)
+    }
+}
+
 #[cfg(test)]
 mod tests {
+    use super::*;
     #[test]
-    fn it_works() {
+    fn addition() {
+        let a = Complex::new(1, 5);
+        let b = Complex::new(-3, 2);
+        assert_eq!(a+b, Complex::new(-2, 7));
     }
 }
+
-- 
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