* lib/matrix.rb (Vector#each): Return self and optimization [ruby-core:28405]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 4 deletions

diff --git a/lib/matrix.rb b/lib/matrix.rb
index 3f27bcaeef..b3a7e79fe5 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -1144,11 +1144,10 @@ class Vector
   #
   # Iterate over the elements of this vector
   #
-  def each
+  def each(&block)
     return to_enum(:each) unless block_given?
-    @elements.each do |i|
-      yield i
-    end
+    @elements.each(&block)
+    self
   end
 
   #