Using custom type in Q_PROPERTY

[Venkateswaran]

I want to use custom type in Q_PROPERTY MEMBER. Please check out my below code.

header.h

class Custom {
  Q_GADGET
  Q_PROPERTY(int mode MEMBER mode STORED true)

 public:
  Custom();
  int mode;
};

class Test {
  Q_GADGET
  Q_PROPERTY(QString ip MEMBER ip STORED true)
  Q_PROPERTY(Custom discovery MEMBER discovery STORED true)

 public:
  Test();
  QString ip;
  Custom discovery;
};

Q_DECLARE_METATYPE(Custom)
Q_DECLARE_METATYPE(Test)

main.cpp

#include "header.h"

Test::Test() { qRegisterMetaType<Test>("Test"); }

Custom::Custom() { qRegisterMetaType<Custom>("Custom"); }

int main(int argc, char *argv[]) {
  QCoreApplication a(argc, argv);
  Test reg;
  return a.exec();
}

when I compile the above code it throws below error

/home/venkat/Documents/test/testing/build-test-Desktop_Qt_5_12_4_GCC_64bit-Debug/moc_CustomeTypes.cpp:175: error: no match for ‘operator!=’ (operand types are ‘Custom’ and ‘Custom’)
moc_CustomeTypes.cpp:175:31: error: no match for ‘operator!=’ (operand types are ‘Custom’ and ‘Custom’)
             if (_t->discovery != *reinterpret_cast< Custom*>(_v)) {
                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

should I need to provide operator!= for Custom type ?