[ruby-cvs:62471] duerst:r55308 (trunk): * string.c (rb_str_downcase_bang): Switch to use primitive except if

[duerst at ruby-lang.org]

duerst	2016-06-07 16:44:19 +0900 (Tue, 07 Jun 2016)

  New Revision: 55308

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=55308

  Log:
    * string.c (rb_str_downcase_bang): Switch to use primitive except if
      conversion can be done ASCII-only.

  Modified files:
    trunk/ChangeLog
    trunk/string.c