cppcheck warning suppressions

libuavcan/include/uavcan/build_config.hpp

@@ -168,7 +168,7 @@ struct UAVCAN_EXPORT IsDynamicallyAllocatable
 {
     static void check()
     {
-        char dummy[(sizeof(T) <= MemPoolBlockSize) ? 1 : -1];
+        char dummy[(sizeof(T) <= MemPoolBlockSize) ? 1 : -1] = { '0' };
         (void)dummy;
     }
 };

libuavcan/include/uavcan/marshal/float_spec.hpp

@@ -210,7 +210,7 @@ class UAVCAN_EXPORT YamlStreamer<FloatSpec<BitLen, CastMode> >
     typedef typename FloatSpec<BitLen, CastMode>::StorageType StorageType;
 
 public:
-    template <typename Stream>
+    template <typename Stream>  // cppcheck-suppress passedByValue
     static void stream(Stream& s, const StorageType value, int)
     {
         s << value;

libuavcan/include/uavcan/marshal/integer_spec.hpp

@@ -153,7 +153,7 @@ class UAVCAN_EXPORT YamlStreamer<IntegerSpec<BitLen, Signedness, CastMode> >
     typedef typename RawType::StorageType StorageType;
 
 public:
-    template <typename Stream>
+    template <typename Stream>  // cppcheck-suppress passedByValue
     static void stream(Stream& s, const StorageType value, int)
     {
         // Get rid of character types - we want its integer representation, not ASCII code

libuavcan/include/uavcan/node/service_server.hpp

@@ -76,7 +76,7 @@ private:
     uint32_t response_failure_count_;
     ResponseType response_;
 
-    void handleReceivedDataStruct(ReceivedDataStructure<RequestType>& request)
+    virtual void handleReceivedDataStruct(ReceivedDataStructure<RequestType>& request)
     {
         UAVCAN_ASSERT(request.getTransferType() == TransferTypeServiceRequest);
         if (try_implicit_cast<bool>(callback_, true))

libuavcan/include/uavcan/node/subscriber.hpp

@@ -69,7 +69,7 @@ private:
 
     Callback callback_;
 
-    void handleReceivedDataStruct(ReceivedDataStructure<DataType_>& msg)
+    virtual void handleReceivedDataStruct(ReceivedDataStructure<DataType_>& msg)
     {
         if (try_implicit_cast<bool>(callback_, true))
         {

libuavcan/src/marshal/uc_float_spec.cpp

@@ -41,6 +41,7 @@ static inline bool isnan(T arg)
 #if UAVCAN_CPP_VERSION >= UAVCAN_CPP11
     return std::isnan(arg);
 #else
+    // cppcheck-suppress duplicateExpression
     return arg != arg;
 #endif
 }

libuavcan/test/node/test_node.hpp

@@ -73,7 +73,7 @@ struct PairableCanDriver : public uavcan::ICanDriver, public uavcan::ICanIface
         assert(other);
         if (inout_masks.read == 1)
         {
-            inout_masks.read = (read_queue.size() || loopback_queue.size()) ? 1 : 0;
+            inout_masks.read = (!read_queue.empty() || !loopback_queue.empty()) ? 1 : 0;
         }
         if (inout_masks.read || inout_masks.write)
         {
@@ -160,8 +160,7 @@ struct InterlinkedTestNodes
         nspins2 = nspins2 ? nspins2 : 1;
         while (nspins2 --> 0)
         {
-            int ret = -1;
+            int ret = a.spin(uavcan::MonotonicDuration::fromMSec(1));
-            ret = a.spin(uavcan::MonotonicDuration::fromMSec(1));
             if (ret < 0)
             {
                 return ret;