JComparator.cc File Reference

Auxiliary program to test JLANG::JComparator class and helper methods. More...

#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <iterator>
#include "JLang/JComparator.hh"
#include "JLang/JComparison.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

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Functions
int	main (int argc, char **argv)

Detailed Description

Auxiliary program to test JLANG::JComparator class and helper methods.

Author

mdejong

Definition in file JComparator.cc.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 56 of file JComparator.cc.

{
  using namespace std;
  using namespace JPP;

  int         debug;

  try {

    JParser<> zap("Auxiliary program to test object comparison methods.");

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

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

  typedef vector<__A__> buffer_type;

  buffer_type buffer;

  buffer.push_back(__A__(3.0));
  buffer.push_back(__A__(4.0));
  buffer.push_back(__A__(2.0));
  buffer.push_back(__A__(1.0));
  buffer.push_back(__A__(5.0));

  ASSERT(buffer.size() >= 2);

  print(cout, debug,
        "data",
        buffer.begin(), buffer.end());

  
  sort(buffer.begin(), buffer.end(), make_comparator(&__A__::get));

  print(cout, debug,
        "sort(.., make_comparator(&__A__::get))",
        buffer.begin(), buffer.end());

  for (buffer_type::const_iterator q = buffer.begin(), p = q++; q != buffer.end(); ++p, ++q) {
    ASSERT(p->get() < q->get(), "test sort");
  }


  {
    for (const auto& i : buffer) {
      
      buffer_type::const_iterator p = lower_bound(buffer.begin(), buffer.end(), i.get(), make_comparator(&__A__::get));

      ASSERT(p != buffer.end() && i.get() == p->get(), "test lower_bound");
    }
  }

  sort(buffer.begin(), buffer.end(), make_comparator(&__A__::get, JComparison::gt()));

  print(cout, debug,
        "sort(.., make_comparator(&__A__::get, JComparison::gt()))",
        buffer.begin(), buffer.end());

  for (buffer_type::const_iterator q = buffer.begin(), p = q++; q != buffer.end(); ++p, ++q) {
    ASSERT(p->get() > q->get());
  }

  
  sort(buffer.begin(), buffer.end(), make_comparator(&__A__::a));

  print(cout, debug,
        "sort(.., make_comparator(&__A__::a))",
        buffer.begin(), buffer.end());

  for (buffer_type::const_iterator q = buffer.begin(), p = q++; q != buffer.end(); ++p, ++q) {
    ASSERT(p->a < q->a);
  }
  
  sort(buffer.begin(), buffer.end(), make_comparator(&__A__::a, JComparison::gt()));

  print(cout, debug,
        "sort(.., make_comparator(&__A__::a), JComparison::gt())",
        buffer.begin(), buffer.end());

  for (buffer_type::const_iterator q = buffer.begin(), p = q++; q != buffer.end(); ++p, ++q) {
    ASSERT(p->a > q->a);
  }

  return 0;
}