Given the class definitions below, complete the code for the empty, swap and push functions.( thats Heap. Binary Heap. in data structure class by using c++) 

#include #include using namespace std; class heapType{ 

 public: bool empty(); void push(int num); heapType(); 

 private: int C1I; int C2I; int CI; int done; // status flag int EOL; // end of line int count; // elements in the heap int heap[10]; 

 int PI; // parent index 

void swap(int I1,int I2); // exchange heap contents };

// ----------------------------------------------------- bool heapType::empty(){

 ... complete the code here ... 

} // ----------------------------------------------------- void heapType::swap(int I1,int I2){ // exchange heap contents

 ... complete the code here ... 

} // ----------------------------------------------------- void heapType::push(int num){

 ... complete the code here ... 

// child 1 index // child 2 index // child index 

}