JResolve.hh

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#ifndef __JLANG__JRESOLVE__
#define __JLANG__JRESOLVE__
 
#include "JLang/JBool.hh"
 
 
/**
 * \author mdejong
 */
 
namespace JLANG {}
namespace JPP { using namespace JLANG; }
 
namespace JLANG {
 
 
  /**
   * Test exitence of class T.
   */
  template<class T, class JBool_t = JBool<true> >
  struct JResolve
  {
    static const bool value = false;   //!< true if an implementation of class T exists; else false
  };
 
 
  /**
   * Template specialisation of class JResolve for existing implementation of given class T.
   */
  template<class T>
  struct JResolve<T, JBool< sizeof(T) > >
  {
    static const bool value = true;    //!< true if an implementation of class T exists; else false
  };
}
 
#endif