text: // inline.cpp -- using an inline function
  #include <iostream>
  
  // an inline function definition
  inline double square(double x) { return x * x; }
  int main()
  {
      using namespace std;
      double a, b;
      double c = 13.0;
  
      a = square(5.0);
      b = square(4.5 + 7.5);   // can pass expressions
      cout << "a = " << a << ", b = " << b << "\n";
      cout << "c = " << c;
      cout << ", c squared = " << square(c++) << "\n";
      cout << "Now c = " << c << "\n";
      // cin.get();
      return 0;  
  }
  