Повторное использование кода в C++ - C++ - Ответ 4381657

#include <iostream>
#include <string>
#include <vector>
 
class Wine
{
   public:
      typedef std::pair<int, int> Info;
      typedef std::vector<Info> InfoArray;
 
   private:
      std::string name;
      InfoArray info;
 
   public:
      Wine(const std::string& theName): name(theName) { ; };
 
      Wine(const std::string& theName, const Info& theInfo)
         : name(theName), info(&theInfo, &theInfo + 1) { ; }
 
      Wine(const std::string& theName, const Info theInfo[], size_t count)
         : name(theName), info(theInfo, theInfo + count) { ; }
 
      Wine(const std::string& theName, const InfoArray& theInfoArray)
         : name(theName), info(theInfoArray) { ; }
 
      friend std::ostream& operator << (std::ostream& out, const Wine& wine)
      {
         out << "Wine = " << wine.name << std::endl;
 
         Wine::InfoArray::const_iterator it;
         for (it = wine.info.begin(); it != wine.info.end(); ++it)
         {
            out << it->first << " " << it->second << std::endl;
         }
 
         return out;
      }
};
 
int main()
{
   Wine first("first");
 
   Wine second("second", Wine::Info(1970, 20));
 
   const Wine::Info info[] = {Wine::Info(1970, 25),
                              Wine::Info(1975, 50),
                              Wine::Info(1960, 11)};
 
   Wine last("last", info, sizeof(info) / sizeof(*info));
 
   std::cout << first  << std::endl
             << second << std::endl
             << last   << std::endl;
 
   return 0;
}