It's possible that the "rq_anon" pointer is either pointing to an invalid memory location, OR the string pointed to by rq_anon is not null-terminated
Randy -----Original Message----- From: ns-users-boun...@isi.edu [mailto:ns-users-boun...@isi.edu] On Behalf Of Reza Karimi Sent: Sunday, June 08, 2014 1:27 PM To: ns-users@ISI.EDU Subject: [ns] Problem with const char* Hi Please take a look at the following code: --------------------------------------- const char *x="Reza"; if (strcmp(rq->rq_anon,x) == 0) { //Do something } -------------------------------------- "rq" is a pointer to the header of RREQ packet and "rq_anon" is a pointer to const data. This is a part of my routing protocol. Making is OK. The problem is that when I run my Tcl program related to this routing protocol, segmentation falut occurs. But when I changed this code to: --------------------------------------- if (rq->rq_anon == "Reza") { //Do something } -------------------------------------- it works! with one warning that is expected. So what is the problem? Is it a bug in NS? ______________________________________________________ Reza Karimi, M.Sc. Faculty of Electrical and Computer Engineering (ECE) K.N.Toosi University of Technology Tehran, IRAN. P PLEASE CONSIDER OUR ENVIRONMENT BEFORE PRINTING THIS EMAIL. This e-mail (including any attachments) is confidential and may be legally privileged. If you are not an intended recipient or an authorized representative of an intended recipient, you are prohibited from using, copying or distributing the information in this e-mail or its attachments. If you have received this e-mail in error, please notify the sender immediately by return e-mail and delete all copies of this message and any attachments. Thank you.
