707 clear_diffin(diffin_T *din)  in clear_diffin()  argument
709     if (din->din_fname == NULL)  in clear_diffin()
711 	vim_free(din->din_mmfile.ptr);  in clear_diffin()
712 	din->din_mmfile.ptr = NULL;  in clear_diffin()
715 	mch_remove(din->din_fname);  in clear_diffin()
732 diff_write_buffer(buf_T *buf, diffin_T *din)  in diff_write_buffer()  argument
758     din->din_mmfile.ptr = (char *)ptr;  in diff_write_buffer()
759     din->din_mmfile.size = len;  in diff_write_buffer()
798 diff_write(buf_T *buf, diffin_T *din)  in diff_write()  argument
804     if (din->din_fname == NULL)  in diff_write()
805 	return diff_write_buffer(buf, din);  in diff_write()
814     r = buf_write(buf, din->din_fname, NULL,  in diff_write()