JAbstractClass.cc

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#include <iostream>
#include <iomanip>
 
#include "JLang/JAbstractClass.hh"
 
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
 
 
namespace {
 
  struct __A__ {};
 
  struct __C__ {
    virtual ~__C__() {}
    virtual void c() = 0;
  };
 
 
  /**
   * Print class parameters.
   *
   * \param  out         output stream
   * \param  name        name of class
   */
  template<class T>
  inline void print(std::ostream& out, const char* name)
  {
    using namespace std;
    using namespace JPP;
 
    out << setw(36) << left << name;
    out << setw(4) << '.' << setw(8) << left << JAbstractClass<T>::is_abstract;
    out << endl;
  }
}
 
 
/**
 * Print class parameters.
 *
 * \param  OUT         output stream
 * \param  T           class
 */
#define PRINT(OUT, T)   print<T>(OUT, #T)
 
 
/**
 * \file
 *
 * Example program to test JLANG::JAbstractClass class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;
 
  int debug;
 
  try {
 
    JParser<> zap("Example program to test class inspection.");
 
    zap['d'] = make_field(debug)     = 3;
 
    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }
 
  if (debug >= debug_t) {
  
    cout << setw(36) << left << "name";
    cout << setw(12) << "abstract";
    cout << endl;
    
    cout << setfill('.');
    
    PRINT(cout, int);
    PRINT(cout, __A__);
    PRINT(cout, __C__);
  }
 
  ASSERT(!JAbstractClass<int>  ::is_abstract);
  ASSERT(!JAbstractClass<__A__>::is_abstract);
  ASSERT( JAbstractClass<__C__>::is_abstract);
}