Avoid copy on IntX.Abs

IronScheme · Sep 19, 2019 · 06c23f4 · 06c23f4
1 parent 1a871f3
commit 06c23f4
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/IronScheme/Oyster.IntX/IntX.cs b/IronScheme/Oyster.IntX/IntX.cs
@@ -1706,9 +1706,13 @@ internal void TryNormalize()
 
     public IntX Abs()
     {
-      uint[] newdigits = new uint[_digits.Length];
-      Array.Copy(_digits, newdigits, newdigits.Length);
-      return new IntX(newdigits, false);
+      if (_negative)
+      {
+        uint[] newdigits = new uint[_digits.Length];
+        Array.Copy(_digits, newdigits, newdigits.Length);
+        return new IntX(newdigits, false);
+      }
+      return this;
     }
 
     public double ToFloat64()