2008/7/10 jiwen zhang <[EMAIL PROTECTED]>: > Hello om_p : > yes , you are right , when the user send the data , he does not put the > data at the beginning of the payload of the message_t , but an offset whose > length is the size of the ctp_header . i understand . > another question : > maybe i have asked the question to someone , but i can't find it . you > use " nx_uint8_t data[0] " in ctp_data_header , what is the function of > this field ? because it's size is zero . is it similar to a pointer ?
This allows you to access the variable size byte array as an array. If the data always had n bytes, we would have used data[n]. - om_p _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
