Apply modernize-use-default-member-init

examples/n-m/receiver.cxx

@@ -33,12 +33,6 @@ class Receiver : public FairMQDevice
 {
   public:
     Receiver()
-        : fBuffer()
-        , fDiscardedSet()
-        , fNumSenders(0)
-        , fBufferTimeoutInMs(5000)
-        , fMaxTimeframes(0)
-        , fTimeframeCounter(0)
     {
         OnData("data", &Receiver::HandleData);
     }
@@ -102,10 +96,10 @@ class Receiver : public FairMQDevice
     unordered_map<uint16_t, TFBuffer> fBuffer;
     unordered_set<uint16_t> fDiscardedSet;
 
-    int fNumSenders;
-    int fBufferTimeoutInMs;
-    int fMaxTimeframes;
-    int fTimeframeCounter;
+    int fNumSenders = 0;
+    int fBufferTimeoutInMs = 5000;
+    int fMaxTimeframes = 0;
+    int fTimeframeCounter = 0;
 };
 
 void addCustomOptions(bpo::options_description& options)

examples/n-m/sender.cxx

@@ -20,15 +20,8 @@ namespace bpo = boost::program_options;
 class Sender : public FairMQDevice
 {
   public:
-    Sender()
-        : fNumReceivers(0)
-        , fIndex(0)
-        , fSubtimeframeSize(10000)
-    {}
+    Sender() {}
 
-    ~Sender() = default;
-
-  protected:
     void InitTask() override
     {
         fIndex = GetConfig()->GetProperty<int>("sender-index");
@@ -64,9 +57,9 @@ class Sender : public FairMQDevice
     }
 
   private:
-    int fNumReceivers;
-    unsigned int fIndex;
-    int fSubtimeframeSize;
+    int fNumReceivers = 0;
+    unsigned int fIndex = 0;
+    int fSubtimeframeSize = 10000;
 };
 
 void addCustomOptions(bpo::options_description& options)

examples/n-m/synchronizer.cxx

@@ -18,12 +18,8 @@ namespace bpo = boost::program_options;
 class Synchronizer : public FairMQDevice
 {
   public:
-    Synchronizer()
-        : fTimeframeId(0)
-    {}
-    ~Synchronizer() = default;
+    Synchronizer() {}
 
-  protected:
     bool ConditionalRun() override
     {
         FairMQMessagePtr msg(NewSimpleMessage(fTimeframeId));
@@ -39,7 +35,7 @@ class Synchronizer : public FairMQDevice
         return true;
     }
 
-    uint16_t fTimeframeId;
+    uint16_t fTimeframeId = 0;
 };
 
 void addCustomOptions(bpo::options_description& /* options */) {}