DDValuePair.h

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#ifndef DDValuePair_h
#define DDValuePair_h

#include <string>
#include <map>
//#include <utility>

struct DDValuePair : public std::pair<std::string,double>
{
  DDValuePair() { }
  DDValuePair(const std::string & s, double d) : std::pair<std::string,double>(s,d) { }
  DDValuePair(const std::string & s) : std::pair<std::string,double>(s,0) { }
  DDValuePair(double d) : std::pair<std::string,double>("",d) { }
  
  operator const std::string&() const { return first; }
  operator std::string&() { return first; }
  operator const double&() const { return second; }
  operator double&() { return second; }
  
};

std::ostream & operator<<(std::ostream & o, const DDValuePair & v);


#endif