There is a simple method to determinate whether a number is even or odd in C++

evenOrOdd.cpp

  // This source code written by Roland Ihasz 
  #include<iostream>  
  using namespace std;  
    
  bool evenOrOdd(int integer)  
  {  
    if (integer % 2==0)  
      return true;  
    else  
      return false;  
  }  
    
  int main()  
  {  
    int number;  
    cout << "Enter an integer value: ";  
    cin >> number;  
    if(evenOrOdd(number) == true)  
      cout << number << " is an even number." << endl;  
    else  
      cout << number << " is an odd number." << endl;   
  }