Fix clang-tidy readability-simplify-boolean-expr warnings

examples/naming/object-names.cc

@@ -214,7 +214,7 @@ main(int argc, char* argv[])
         outputValidated = false;
     }
 
-    if (outputValidated == false)
+    if (!outputValidated)
     {
         std::cerr << "Program internal checking failed; returning with error" << std::endl;
         return (1);

examples/tcp/tcp-validation.cc

@@ -746,7 +746,7 @@ main(int argc, char* argv[])
         firstTcpTypeId = TcpDctcp::GetTypeId();
         Config::SetDefault("ns3::CoDelQueueDisc::CeThreshold", TimeValue(ceThreshold));
         Config::SetDefault("ns3::FqCoDelQueueDisc::CeThreshold", TimeValue(ceThreshold));
-        if (queueUseEcn == false)
+        if (!queueUseEcn)
         {
             std::cout << "Warning: using DCTCP with queue ECN disabled" << std::endl;
         }

examples/tutorial/seventh.cc

@@ -125,7 +125,7 @@ main(int argc, char* argv[])
     Address anyAddress;
     std::string probeType;
     std::string tracePath;
-    if (useV6 == false)
+    if (!useV6)
     {
         Ipv4AddressHelper address;
         address.SetBase("10.1.1.0", "255.255.255.0");

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

@@ -74,7 +74,7 @@ main(int argc, char* argv[])
     NetDeviceContainer d = csma.Install(n);
 
     NS_LOG_INFO("Assign IP Addresses.");
-    if (useV6 == false)
+    if (!useV6)
     {
         Ipv4AddressHelper ipv4;
         ipv4.SetBase("10.1.1.0", "255.255.255.0");

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

@@ -73,7 +73,7 @@ main(int argc, char* argv[])
     NetDeviceContainer d = csma.Install(n);
 
     NS_LOG_INFO("Assign IP Addresses.");
-    if (useV6 == false)
+    if (!useV6)
     {
         Ipv4AddressHelper ipv4;
         ipv4.SetBase("10.1.1.0", "255.255.255.0");

examples/udp/udp-echo.cc

@@ -81,7 +81,7 @@ main(int argc, char* argv[])
     // We've got the "hardware" in place.  Now we need to add IP addresses.
     //
     NS_LOG_INFO("Assign IP Addresses.");
-    if (useV6 == false)
+    if (!useV6)
     {
         Ipv4AddressHelper ipv4;
         ipv4.SetBase("10.1.1.0", "255.255.255.0");

examples/wireless/mixed-wired-wireless.cc

@@ -414,7 +414,7 @@ main(int argc, char* argv[])
     // pcap trace on the application data sink
     wifiPhy.EnablePcap("mixed-wireless", appSink->GetId(), 0);
 
-    if (useCourseChangeCallback == true)
+    if (useCourseChangeCallback)
     {
         Config::Connect("/NodeList/*/$ns3::MobilityModel/CourseChange",
                         MakeCallback(&CourseChangeCallback));

examples/wireless/wifi-simple-adhoc-grid.cc

@@ -255,7 +255,7 @@ main(int argc, char* argv[])
     InetSocketAddress remote = InetSocketAddress(i.GetAddress(sinkNode, 0), 80);
     source->Connect(remote);
 
-    if (tracing == true)
+    if (tracing)
     {
         AsciiTraceHelper ascii;
         wifiPhy.EnableAsciiAll(ascii.CreateFileStream("wifi-simple-adhoc-grid.tr"));