KICONV_UTF8_REPLACEMENT_CHAR3
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
u8[2] == KICONV_UTF8_REPLACEMENT_CHAR3)
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;
*ob++ = KICONV_UTF8_REPLACEMENT_CHAR3;