debug.h

#if HOME

#include <vector>
#include <list>
#include <queue>
#include <set>
#include <map>

// Author :  Nikhil Garg

#define debug(args,__VA_ARGS__)     (Debugger()) , args

class Debugger
{
public:
   Debugger(const std::string& _separator = ", ") :
   first(true), separator(_separator){}

   template<typename ObjectType>
   Debugger& operator , (const ObjectType& v)
   {
       if(!first)
           std::cerr << separator;
       std::cerr << v;
       first = false;
       return *this;
   }
   ~Debugger() {  std::cerr << endl;}

private:
   bool first;
   std::string separator;
};

template <typename T1, typename T2>
inline std::ostream& operator << (std::ostream& os, const std::pair<T1, T2>& p)
{
   return os << "(" << p.first << ", " << p.second << ")";
}

template<typename T>
inline std::ostream &operator << (std::ostream & os,const std::vector<T>& v)
{
   bool first = true;
   os << "[";
   for(unsigned int i = 0; i < v.size(); i++)
   {
       if(!first)
           os << ", ";
       os << v[i];
       first = false;
   }
   return os << "]";
}

template<typename T>
inline std::ostream &operator << (std::ostream & os,const std::list<T>& l)
{
   bool first = true;
   os << "[";
   for(typename std::list<T>::const_iterator it = l.begin(); it != l.end(); ++it)
   {
       if(!first)
           os << ", ";
       os << *it;
       first = false;
   }
   return os << "]";
}

template<typename T>
inline std::ostream &operator << (std::ostream & os,const std::set<T>& v)
{
   bool first = true;
   os << "[";
   for (typename std::set<T>::const_iterator ii = v.begin(); ii != v.end(); ++ii)
   {
       if(!first)
           os << ", ";
       os << *ii;
       first = false;
   }
   return os << "]";
}

template<typename T1, typename T2>
inline std::ostream &operator << (std::ostream & os,const std::map<T1, T2>& v)
{
   bool first = true;
   os << "[";
   for (typename std::map<T1, T2>::const_iterator ii = v.begin(); ii != v.end(); ++ii)
   {
       if(!first)
           os << ", ";
       os << *ii ;
       first = false;
   }
   return os << "]";
}

#endif