matz	2007-08-07 01:41:17 +0900 (Tue, 07 Aug 2007)

  New Revision: 12891

  Modified files:
    trunk/ChangeLog
    trunk/cont.c
    trunk/enumerator.c
    trunk/include/ruby/intern.h
    trunk/include/ruby/ruby.h

  Log:
    * cont.c (rb_fiber_yield): change argument ordering.  export.
    
    * cont.c (rb_fiber_current): export
    
    * include/ruby/intern.h: export several functions from cont.c.
    
    * enumerator.c (enumerator_next): new method to implement external
      iterator (generator) using fiber.
    
    * enumerator.c (enumerator_next_p): new method to check whether
      any element is left in the generator sequence.
    
    * enumerator.c (enumerator_rewind): a new method to rewind the
      generator sequence.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/include/ruby/ruby.h?r1=12891&r2=12890
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/cont.c?r1=12891&r2=12890
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=12891&r2=12890
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/include/ruby/intern.h?r1=12891&r2=12890
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/enumerator.c?r1=12891&r2=12890