MIME_BUF_MASK 3847 ext/nkf/nkf-utf8/nkf.c #define mime_input_buf(n) mime_input_state.buf[(n)&MIME_BUF_MASK] MIME_BUF_MASK 3930 ext/nkf/nkf-utf8/nkf.c if (((mime_input_state.input-mime_input_state.top)&MIME_BUF_MASK)==0) {