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#include <cstring>
#include <iostream>
 
template<typename T>
class LinkedList
{
private:
    T element;
    T *next;
 
public:    
    LinkedList();
    LinkedList(T element);
 
    void add(LinkedList<T> &otherList);
    void print();
};
 
template<typename T>
LinkedList<T>::LinkedList()
{
    next = NULL;
}
 
template<typename T>
LinkedList<T>::LinkedList(T element)
{
    this->element = element;
    next = NULL;
}
 
template<typename T>
void LinkedList<T>::add(LinkedList<T> &otherList)
{
    next = &otherList;
}
 
 
template<typename T>
void LinkedList<T>::print()
{
    LinkedList<T> *current = this;
    while (current != NULL)
    {
        std::cout << current->element;
        current = current->next;
    }
}
 
int main()
{    
    LinkedList<std::string> myFirst("First");
    LinkedList<std::string> mySecond("Second");    
    myFirst.add(mySecond);
    myFirst.print();    
 
    return 0;
}

prog.cpp: In instantiation of ‘void LinkedList<T>::add(LinkedList<T>&) [with T = std::basic_string<char>]’:
prog.cpp:54:25:   required from here
prog.cpp:35:10: error: cannot convert ‘LinkedList<std::basic_string<char> >*’ to ‘std::basic_string<char>*’ in assignment
     next = &otherList;
          ^
prog.cpp: In instantiation of ‘void LinkedList<T>::print() [with T = std::basic_string<char>]’:
prog.cpp:55:19:   required from here
prog.cpp:46:17: error: cannot convert ‘std::basic_string<char>*’ to ‘LinkedList<std::basic_string<char> >*’ in assignment
         current = current->next;
                 ^

Standard output is empty