From 81e9a4970cdafd078e7498187e0d63461b0990a7 Mon Sep 17 00:00:00 2001
From: Alex Birkett <alex@birkett.co.uk>
Date: Mon, 1 Feb 2016 21:24:31 +0100
Subject: [PATCH] Remove deep copy method

Copy constructor does the same thing
---
 src/main/java/no/birkett/kiwi/Row.java    | 10 ----------
 src/main/java/no/birkett/kiwi/Solver.java |  4 ++--
 2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/src/main/java/no/birkett/kiwi/Row.java b/src/main/java/no/birkett/kiwi/Row.java
index 5de55a9..3444a57 100644
--- a/src/main/java/no/birkett/kiwi/Row.java
+++ b/src/main/java/no/birkett/kiwi/Row.java
@@ -27,16 +27,6 @@ public class Row {
         this.constant = other.constant;
     }
 
-    public Row deepCopy(){
-        Row result = new Row();
-        result.constant = this.constant;
-        result.cells = new LinkedHashMap<>();
-        for(Symbol s: this.cells.keySet()){
-            result.cells.put(s, this.cells.get(s));
-        }
-        return result;
-    }
-
     public double getConstant() {
         return constant;
     }
diff --git a/src/main/java/no/birkett/kiwi/Solver.java b/src/main/java/no/birkett/kiwi/Solver.java
index 97bb3d2..7cfc098 100644
--- a/src/main/java/no/birkett/kiwi/Solver.java
+++ b/src/main/java/no/birkett/kiwi/Solver.java
@@ -405,9 +405,9 @@ public class Solver {
         // Create and add the artificial variable to the tableau
 
         Symbol art = new Symbol(Symbol.Type.SLACK, idTick++);
-        rows.put(art, row.deepCopy());
+        rows.put(art, new Row(row));
 
-        this.artificial = row.deepCopy();
+        this.artificial = new Row(row);
 
         // Optimize the artificial objective. This is successful
         // only if the artificial objective is optimized to zero.