example: Add missing return 0 in multiple examples

examples/error-model/simple-error-model.cc

@@ -176,4 +176,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/ipv6/fragmentation-ipv6-PMTU.cc

@@ -157,4 +157,6 @@ main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/ipv6/fragmentation-ipv6-two-MTU.cc

@@ -120,5 +120,7 @@ int main (int argc, char** argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/fragmentation-ipv6.cc

@@ -117,5 +117,7 @@ int main (int argc, char** argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/icmpv6-redirect.cc

@@ -139,5 +139,7 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/loose-routing-ipv6.cc

@@ -182,5 +182,7 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/ping6.cc

@@ -90,9 +90,9 @@ int main (int argc, char **argv)
   Ping6Helper ping6;
 
   /*
-     ping6.SetLocal (i.GetAddress (0, 1));
-     ping6.SetRemote (i.GetAddress (1, 1));
-     */
+  ping6.SetLocal (i.GetAddress (0, 1));
+  ping6.SetRemote (i.GetAddress (1, 1));
+  */
   ping6.SetIfIndex (i.GetInterfaceIndex (0));
   ping6.SetRemote (Ipv6Address::GetAllNodesMulticast ());
 
@@ -111,5 +111,6 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
-}
 
+  return 0;
+}

examples/ipv6/radvd-two-prefix.cc

@@ -221,5 +221,7 @@ int main (int argc, char** argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/radvd.cc

@@ -152,5 +152,7 @@ int main (int argc, char** argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/ipv6/test-ipv6.cc

@@ -66,5 +66,7 @@ main (int argc, char *argv[])
       Ipv6Address ipv6address = Ipv6Address::MakeAutoconfiguredAddress (m_addresses[i], prefix2);
       NS_LOG_INFO ("address = " << ipv6address);
     }
+
+  return 0;
 }
 

examples/ipv6/wsn-ping6.cc

@@ -137,5 +137,7 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/naming/object-names.cc

@@ -219,4 +219,6 @@ main (int argc, char *argv[])
       std::cerr << "Program internal checking failed; returning with error" << std::endl;
       return (1);
     }
+
+  return 0;
 }

examples/realtime/realtime-udp-echo.cc

@@ -118,4 +118,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/routing/dynamic-global-routing.cc

@@ -223,4 +223,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/routing/global-routing-multi-switch-plus-router.cc

@@ -807,4 +807,5 @@ main (int argc, char *argv[])
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
 
+  return 0;
 }

examples/routing/manet-routing-compare.cc

@@ -246,6 +246,8 @@ main (int argc, char *argv[])
   double txp = 7.5;
 
   experiment.Run (nSinks, txp, CSVfileName);
+
+  return 0;
 }
 
 void

examples/routing/mixed-global-routing.cc

@@ -132,4 +132,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/routing/rip-simple-network.cc

@@ -254,5 +254,7 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/routing/ripng-simple-network.cc

@@ -266,5 +266,7 @@ int main (int argc, char **argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/routing/simple-routing-ping6.cc

@@ -163,5 +163,7 @@ int main (int argc, char** argv)
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }
 

examples/socket/socket-options-ipv4.cc

@@ -155,4 +155,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/socket/socket-options-ipv6.cc

@@ -154,4 +154,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/tcp/tcp-bulk-send.cc

@@ -133,4 +133,6 @@ main (int argc, char *argv[])
 
   Ptr<PacketSink> sink1 = DynamicCast<PacketSink> (sinkApps.Get (0));
   std::cout << "Total Bytes Received: " << sink1->GetTotalRx () << std::endl;
+
+  return 0;
 }

examples/tcp/tcp-large-transfer.cc

@@ -199,6 +199,8 @@ int main (int argc, char *argv[])
   Simulator::Stop (Seconds (1000));
   Simulator::Run ();
   Simulator::Destroy ();
+
+  return 0;
 }
 
 

examples/tcp/tcp-pacing.cc

@@ -326,4 +326,6 @@ main (int argc, char *argv[])
   pacingRateStream.close ();
   ssThreshStream.close ();
   Simulator::Destroy ();
+
+  return 0;
 }

examples/tcp/tcp-pcap-nanosec-example.cc

@@ -156,4 +156,6 @@ main (int argc, char *argv[])
 
   Ptr<PacketSink> sink1 = DynamicCast<PacketSink> (sinkApps.Get (0));
   std::cout << "Total Bytes Received: " << sink1->GetTotalRx () << std::endl;
+
+  return 0;
 }

examples/tcp/tcp-validation.cc

@@ -1055,5 +1055,7 @@ main (int argc, char *argv[])
     {
       NS_FATAL_ERROR ("Validation failed");
     }
+
+  return 0;
 }
 

examples/tutorial/fourth.cc

@@ -65,4 +65,6 @@ main (int argc, char *argv[])
   myObject->TraceConnectWithoutContext ("MyInteger", MakeCallback (&IntTrace));
 
   myObject->m_myInt = 1234;
+
+  return 0;
 }

examples/tutorial/hello-simulator.cc

@@ -24,4 +24,5 @@ int
 main (int argc, char *argv[])
 {
   NS_LOG_UNCOND ("Hello Simulator");
+  return 0;
 }

examples/udp-client-server/udp-client-server.cc

@@ -112,4 +112,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/udp-client-server/udp-trace-client-server.cc

@@ -107,4 +107,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/udp/udp-echo.cc

@@ -145,4 +145,6 @@ main (int argc, char *argv[])
   Simulator::Run ();
   Simulator::Destroy ();
   NS_LOG_INFO ("Done.");
+
+  return 0;
 }

examples/wireless/mixed-wired-wireless.cc

@@ -423,4 +423,6 @@ main (int argc, char *argv[])
   Simulator::Stop (Seconds (stopTime));
   Simulator::Run ();
   Simulator::Destroy ();
+
+  return 0;
 }

examples/wireless/wifi-dsss-validation.cc

@@ -111,4 +111,6 @@ set style line 8 linewidth 5\n\
 set style increment user"                                                                                                                                                                                                                                                                                                                                   );
   plot.GenerateOutput (file);
   file.close ();
+
+  return 0;
 }

examples/wireless/wifi-error-models-comparison.cc

@@ -165,4 +165,6 @@ set yrange [0.0001:1]\n";
 
   plot.GenerateOutput (errormodelfile);
   errormodelfile.close ();
+
+  return 0;
 }

examples/wireless/wifi-ofdm-eht-validation.cc

@@ -138,4 +138,6 @@ set yrange [0:1]\n";
   tableplot.SetExtra (plotExtra.str ());
   tableplot.GenerateOutput (tablefile);
   tablefile.close ();
+
+  return 0;
 }

examples/wireless/wifi-ofdm-he-validation.cc

@@ -167,4 +167,6 @@ set style increment user");
 
   tableplot.GenerateOutput (tablefile);
   tablefile.close ();
+
+  return 0;
 }

examples/wireless/wifi-ofdm-ht-validation.cc

@@ -152,4 +152,6 @@ set style increment user");
 
   tableplot.GenerateOutput (tablefile);
   tablefile.close ();
+
+  return 0;
 }

examples/wireless/wifi-ofdm-validation.cc

@@ -153,4 +153,6 @@ set style increment user");
 
   tableplot.GenerateOutput (tablefile);
   tablefile.close ();
+
+  return 0;
 }

examples/wireless/wifi-ofdm-vht-validation.cc

@@ -156,4 +156,6 @@ set style increment user");
 
   tableplot.GenerateOutput (tablefile);
   tablefile.close ();
+
+  return 0;
 }

examples/wireless/wifi-wired-bridging.cc

@@ -196,4 +196,6 @@ int main (int argc, char *argv[])
   Simulator::Stop (Seconds (5.0));
   Simulator::Run ();
   Simulator::Destroy ();
+
+  return 0;
 }