C++ Program on Inline Functions

         #include <iostream>
   using namespace std;
   inline double Sum(const double * Numbers, const int Count)
   {
     double s = 0;
     for(int i = 0; i < Count; i++)
       s += Numbers[i];
     return s;
   }
   int main()
   {
     double Nbr[] = { 15.66, 18, 25, 128.62, 12.06, 22.18 };
     double Total = Sum(Nbr, 6);
     cout << "Sum = " << Total << endl;
     return 0;
   }
     If you first declare a function that would be defined somewhere else, when implementing the function, you can type or omit the inline keyword:
   #include <iostream>
   using namespace std;
   inline double Sum(const double * Numbers, const int Count);
   int main()
   {
     double Nbr[] = { 15.66, 18, 25, 128.62, 12.06, 22.18 };
     double Total = Sum(Nbr, 6);
     cout << "Sum = " << Total << endl;
     return 0;
   }
   inline double Sum(const double * Numbers, const int Count)
   {
     double s = 0;
     for(int i = 0; i < Count; i++)
       s += Numbers[i];
     return s;
   }