c++ - Error: cannot call constructor -

i have included new module ns2 evaluation of video transmission. have make changes required files agent.h ,agent.cc, makefile , on. during make getting stuck error. error is:

myevalvid/myudp.cc: in member function ‘virtual void myudpagent::sendmsg(int, appdata*, const char*)’:  myevalvid/myudp.cc:56:123: warning: format ‘%d’ expects argument of type ‘int’, argument 4 has type ‘long unsigned int’ [-wformat]  myevalvid/myudp.cc:78:123: warning: format ‘%d’ expects argument of type ‘int’, argument 4 has type ‘long unsigned int’ [-wformat]  make: *** no rule make target `myevalvid/myevalvid_sink.o ', needed `ns'.  stop.  

the code is

#include "myudp.h" #include "rtp.h" #include "random.h" #include "address.h" #include "ip.h"   static class myudpagentclass : public tclclass { public:     myudpagentclass() : tclclass("agent/myudp") {}     tclobject* create(int, const char*const*) {         return (new myudpagent());     } } class_myudp_agent;  myudpagent::myudpagent() : id_(0), openfile(0) {     bind("packetsize_", &size_); }  void myudpagent::sendmsg(int nbytes, appdata* data, const char* flags) {     packet *p;     int n;     char buf[100]; //added smallko      if (size_)         n = nbytes / size_;     else         printf("error: myudp size = 0\n");      if (nbytes == -1) {         printf("error:  sendmsg() udp should not -1\n");         return;     }         // if sending data, must fit within single packet.     if (data && nbytes > size_) {         printf("error: data greater maximum myudp packet size\n");         return;     }      double local_time = scheduler::instance().clock();     while (n-- > 0) {         p = allocpkt();         hdr_cmn::access(p)->size() = size_;         hdr_rtp* rh = hdr_rtp::access(p);         rh->flags() = 0;         rh->seqno() = ++seqno_;         hdr_cmn::access(p)->timestamp() =              (u_int32_t)(samplerate*local_time);         hdr_cmn::access(p)->sendtime_ = local_time; // (smallko)         if(openfile!=0){             hdr_cmn::access(p)->frame_pkt_id_ = id_++;             sprintf(buf, "%-16f id %-16d udp %-16d\n", local_time, hdr_cmn::access(p)->frame_pkt_id_, hdr_cmn::access(p)->size()-28);             fwrite(buf, strlen(buf), 1, bwfile);              //printf("%-16f id %-16d udp %-16d\n", local_time, hdr_cmn::access(p)->frame_pkt_id_, hdr_cmn::access(p)->size()-28);         }         // add "beginning of talkspurt" labels (tcl/ex/test-rcvr.tcl)         if (flags && (0 ==strcmp(flags, "new_burst")))             rh->flags() |= rtp_m;         p->setdata(data);         target_->recv(p);     }     n = nbytes % size_;     if (n > 0) {         p = allocpkt();         hdr_cmn::access(p)->size() = n;         hdr_rtp* rh = hdr_rtp::access(p);         rh->flags() = 0;         rh->seqno() = ++seqno_;         hdr_cmn::access(p)->timestamp() =              (u_int32_t)(samplerate*local_time);         hdr_cmn::access(p)->sendtime_ = local_time; // (smallko)         if(openfile!=0){             hdr_cmn::access(p)->frame_pkt_id_ = id_++;             sprintf(buf, "%-16f id %-16d udp %-16d\n", local_time, hdr_cmn::access(p)->frame_pkt_id_, hdr_cmn::access(p)->size()-28);             fwrite(buf, strlen(buf), 1, bwfile);              //printf("%-16f id %-16d udp %-16d\n", local_time, hdr_cmn::access(p)->frame_pkt_id_, hdr_cmn::access(p)->size()-28);         }         // add "beginning of talkspurt" labels (tcl/ex/test-rcvr.tcl)         if (flags && (0 == strcmp(flags, "new_burst")))             rh->flags() |= rtp_m;         p->setdata(data);         target_->recv(p);     }     idle(); }  int myudpagent::command(int argc, const char*const* argv) {     if(argc ==2) {      //added smallko         if (strcmp(argv[1], "closefile") == 0) {             if(openfile==1)                 fclose(bwfile);             return (tcl_ok);         }      }       if (argc ==3) {     //added smallko         if (strcmp(argv[1], "set_filename") == 0) {             strcpy(bwfile, argv[2]);             bwfile = fopen(bwfile, "w");             openfile=1;             return (tcl_ok);         }     }      return (udpagent::command(argc, argv)); } 

please me sort out error.

as error says, can't call constructor directly, line seems trying do:

udpagent::udpagent(); 

you want remove line. constructor being called (implicitly) @ beginning of constructor. put udpagent() @ start of initialiser list, if want explicit it.