JTuple.cc

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#include <iostream>
#include <sstream>
#include <iomanip>

#include "JTools/JTuple.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to test JTOOLS::JTuple class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  int          debug;

  try {

    JParser<> zap("Example program to test tuple class.");

    zap['d'] = make_field(debug)   = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  {
    typedef JTYPELIST<int, int, double>::typelist  typelist;
    
    JTuple<typelist> A(+1, +2, +0.9999);
    JTuple<typelist> B(-A);
  
    DEBUG(A.first         << endl);
    DEBUG(A.second.first  << endl);
    DEBUG(A.second.second << endl);

    DEBUG("A     =  " << showpos   <<  A  << endl);
    DEBUG("B     =  " << showpos   <<  B  << endl);
    DEBUG("A + B =  " << noshowpos << A+B << endl);

    ASSERT(A == A, "A == A");
    ASSERT(A != B, "A != B");
  }

  { 
    typedef JTYPELIST<string, int>::typelist  typelist;

    JTuple<typelist> A;
    JTuple<typelist> B;

    A.first  = "aap";
    A.second = 1234;

    B.first  = "noot";
    B.second = -A.second;

    JTuple<typelist> C = A + B;

    DEBUG("A     =  " <<  A  << endl);
    DEBUG("B     =  " <<  B  << endl);
    DEBUG("A + B =  " <<  C  << endl);   // uses std::string operator::+=() 


    ASSERT(C == JTuple<typelist>("aapnoot", 0), "Test of A + B with std::string");
  }

  {
    ostringstream os;
    
    os << JPP::make_tuple(1, string("aap"), 0.99);

    DEBUG(os.str() << endl);

    ASSERT(os.str() == "1 aap 0.99", "Test of JPP::make_tuple");
  }

  return 0;
}