From 6bffe17cb037b5c102cfca1dfb75376625784743 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Zurcher?= <jeremy@asynk.ch>
Date: Tue, 9 Apr 2013 22:41:26 +0200
Subject: Scala : add private gcd in rational constructor

---
 Scala/sandbox/3-rationals.scala | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Scala/sandbox/3-rationals.scala b/Scala/sandbox/3-rationals.scala
index 387e091..3eec82c 100644
--- a/Scala/sandbox/3-rationals.scala
+++ b/Scala/sandbox/3-rationals.scala
@@ -2,8 +2,10 @@
 object Rationals {
 
   class Rational(x :Int, y: Int) {
-    def numer = x
-    def denom = y
+    private def gcd(a: Int, b: Int): Int = if (b == 0) a else gcd(b, a % b)
+    private val g = gcd(x, y)
+    def numer = x / g
+    def denom = y / g
 
     def neg = new Rational(-numer, denom)
 
-- 
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