stl_adds.h

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#ifndef __STL_ADDS_H
#define __STL_ADDS_H

#include<list>
#include<string>

namespace std {

  /// += operators for list (list concat)
  template <class T, class A>
    list<T,A>& operator += (list<T,A>& l1, const list<T,A>& l2) 
    { l1.insert(l1.end(), l2.begin(), l2.end()); return l1;}
  
  /// += operators for list (append)
  template <class T, class A>
    list<T,A>& operator += (list<T,A>& l1, const T& v) 
    { l1.push_back(v); return l1;}
  
  string itos(int i);

}

#endif

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