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struct Banana
{
  Banana () {}
  Banana (float) {}
 
  virtual Banana CreateByHalfLength(float halfLength) final  {
    return Banana::CreateByHalfLengthImpl(halfLength);
  }
 
  static Banana CreateByHalfLengthImpl(float halfLength) {
    return Banana(halfLength * 2); 
  }
};
 
struct AdvancedBanana : Banana
{
  static Banana CreateByHalfLength(float halfLength) {  // Error
    return Banana(halfLength * 2); 
  }
};
 
int main ()
{
}
 

prog.cpp:17:17: error: 'static Banana AdvancedBanana::CreateByHalfLength(float)' cannot be declared
   static Banana CreateByHalfLength(float halfLength) {  // Error
                 ^
prog.cpp:6:18: error:   since 'virtual Banana Banana::CreateByHalfLength(float)' declared in base class
   virtual Banana CreateByHalfLength(float halfLength) final  {
                  ^

Standard output is empty