VALUE2ICONV      134 ext/iconv/iconv.c     if (cd && iconv_close(VALUE2ICONV(cd)) == -1)
VALUE2ICONV      507 ext/iconv/iconv.c     return iconv_convert(VALUE2ICONV(cd), Qnil, 0, 0, NULL);
VALUE2ICONV      573 ext/iconv/iconv.c     return iconv_convert(VALUE2ICONV(DATA_PTR(self)), str,