matz	2007-08-08 16:07:03 +0900 (Wed, 08 Aug 2007)

  New Revision: 12905

  Modified files:
    trunk/ChangeLog
    trunk/enum.c
    trunk/enumerator.c
    trunk/include/ruby/ruby.h
    trunk/test/ruby/test_iterator.rb

  Log:
    * enumerator.c (enumerator_next_p): should check correctly even when
      e.next has not been called before.
    
    * enumerator.c (enumerator_next): raise StopIteration (name taken
      from Python) instead of IndexError.
    
    * enum.c (enum_zip): catch StopIteration exception.
    
    * enumerator.c (enumerator_with_index): return Enumerator if no
      block is given.
    
    * test/ruby/test_iterator.rb (TestIterator::test_enumerator): add
      test for enumerators.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/test/ruby/test_iterator.rb?r1=12905&r2=12904
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/include/ruby/ruby.h?r1=12905&r2=12904
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=12905&r2=12904
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/enum.c?r1=12905&r2=12904
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/enumerator.c?r1=12905&r2=12904