/*******************************************************************************/
/*                                                                             */
/*  This code demonstrates how to have one code that is                        */
/*  [a] compilable using eg. g++ and [b] executable as a root macro            */
/*                                                                             */
/*  For [a] type:  root -b "macro_cprogram_unifier.C (123456)"                 */
/*                                                                             */
/*  For [b] type:  g++ macro_cprogram_unifier.C `root-config --cflags --libs`  */
/*                 ./a.out 123456                                              */
/*                                                                             */
/*******************************************************************************/

#if defined __CINT__ || defined __CLING__

    int macro_cprogram_unifier (int InputValue = 123) 
    {
      cout << "\n Hello, I am being interpretted." << endl;

#else

    #include "TMath.h" 
    #include <iostream>
    #include <iomanip>
    using namespace std;

    int main (int argc, char* argv[]) 
    {
      cout << "\n Hello, I was compiled." << endl;
      int InputValue = (argc > 1) ? atoi (argv[1]) : 123;

#endif

      cout << "\n Okay, and this is the common portion of code." << endl;
      cout <<   " TMath::Pi() = " << setprecision (18) << TMath::Pi() << endl;
      cout <<   " Input value (default: 123) = " << InputValue << "\n\n";

      return 0;
    }