added strictest check for aliasing

Author: alexzk1

QtCampp.pro

@@ -12,6 +12,7 @@ CONFIG += ptpdevices #enables ptp cameras
 
 QMAKE_CXXFLAGS += -std=c++11 -Wall -Werror=strict-aliasing -fstrict-aliasing -Wctor-dtor-privacy -Werror=delete-non-virtual-dtor
 QMAKE_CXXFLAGS += -fexceptions -Werror=return-type -Werror=overloaded-virtual
+QMAKE_CXXFLAGS +=  -Werror=strict-aliasing -Wstrict-aliasing=2
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 

devicing/v4l2device.cpp

@@ -80,7 +80,7 @@ v4l2device::devices_list_t v4l2device::list_attached_devices(v4l2device::ListTyp
                     v4l2_capability cap;
                     tmp.querycap(cap);
                     tmp.close();
-                    inf.devname = std::string(utility::union_cast<const char*>(cap.card));
+                    inf.devname = std::string(reinterpret_cast<const char*>(cap.card));
                     inf.devCaps = cap.device_caps;
 
                     res.push_back(inf);
@@ -180,14 +180,14 @@ bool v4l2device::open(const std::string &device)
 
 bool v4l2device::reopen()
 {
-    std::string currName(utility::union_cast<const char*>(m_capability.card));
+    std::string currName(reinterpret_cast<const char*>(m_capability.card));
     std::string d = m_device;
     auto ca = m_capability;
     bool w = usingWrapper;
 
     auto r = open(d, usingWrapper);
 
-    if (r && currName != std::string(utility::union_cast<const char*>(m_capability.card)))
+    if (r && currName != std::string(reinterpret_cast<const char*>(m_capability.card)))
     {
         close(); //opened something, but it's other device
         r = false;

tools/onlinestacker.h

@@ -11,7 +11,7 @@ class OnlineStacker : public ILiveFilter
 {
 public:
 
-    using RGBVectorSum  = std::vector<uint32_t>;
+    using RGBVectorSum  = std::vector<uint64_t>;
     using QueuedElement = RGBVector;
     using RGBQueue      = std::deque<std::shared_ptr<QueuedElement>>;
 private: