data_pointer.h

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#ifndef TUE_CONFIG_DATA_POINTER_H_
#define TUE_CONFIG_DATA_POINTER_H_
 
#include <boost/shared_ptr.hpp>
 
namespace tue
{
 
namespace config
{
 
typedef unsigned int NodeIdx;
 
class Data;
class DataConstPointer;
 
class DataPointer
{
public:
    DataPointer();
    DataPointer(const boost::shared_ptr<Data>& data_, NodeIdx idx_) : data(data_), idx(idx_) {}
//    bool valid() const { return data; }
    boost::shared_ptr<Data> data;
    NodeIdx idx;
 
    bool add(const DataConstPointer& ptr);
//    void reset() { data.reset(); idx = 0; }
 
    bool empty() const;
 
    friend std::ostream& operator<< (std::ostream& out, const DataPointer& d);
 
};
 
class DataConstPointer
{
public:
    DataConstPointer();
    DataConstPointer(const boost::shared_ptr<const Data>& data_, NodeIdx idx_) : data(data_), idx(idx_) {}
    DataConstPointer(const DataPointer& ptr) : data(ptr.data), idx(ptr.idx) {}
//    bool valid() const { return data; }
    boost::shared_ptr<const Data> data;
    NodeIdx idx;
 
//    void reset() { data.reset(); idx = 0; }
 
    bool empty() const;
 
    friend std::ostream& operator<< (std::ostream& out, const DataConstPointer& d);
};
 
}
 
} // end namespace tue
 
#endif