matz	2008-02-12 12:17:43 +0900 (Tue, 12 Feb 2008)

  New Revision: 15441

  Modified files:
    trunk/ChangeLog
    trunk/hash.c
    trunk/include/ruby/intern.h
    trunk/parse.y
    trunk/string.c

  Log:
    * string.c (rb_str_hash_cmp): lighter version of rb_str_cmp() for
      hash comparison function.
    
    * hash.c (rb_any_cmp): use rb_str_hash_cmp().
    
    * string.c (rb_str_casecmp): should return nil for incompatible
      comparison.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/string.c?r1=15441&r2=15440&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/hash.c?r1=15441&r2=15440&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/parse.y?r1=15441&r2=15440&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15441&r2=15440&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/include/ruby/intern.h?r1=15441&r2=15440&diff_format=u