usa	2008-02-25 15:34:38 +0900 (Mon, 25 Feb 2008)

  New Revision: 15598

  Modified files:
    trunk/ChangeLog
    trunk/bignum.c

  Log:
    * bignum.c (big2str_karatsuba): initialize cache if not initialized.
    
    * bignum.c (Init_Bignum): delayed initializing cache.
    


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15598&r2=15597&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/bignum.c?r1=15598&r2=15597&diff_format=u