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class simpleList {
 
    public:
        //Returns a pointer to the first Elem of the list
        simpleList::Elem* front();
 
        //Returns a pointer to the last Elem of the list
        simpleList::Elem* back();
 
    private:
        struct Elem {
            char info;
            Elem *next;
        };
 
        Elem *head; 
};
 
//Returns a pointer to the first Elem of the list
simpleList::Elem* simpleList::front()
{
    return head;
}
 
//Returns a pointer to the last Elem of the list
simpleList::Elem* simpleList::back()
{
    Elem * temp = head;
 
    while( temp -> next != 0 )
        temp = temp -> next;
 
    return temp;
}
 
int main() {
  return 1;
}

prog.cpp:5: error: ISO C++ forbids declaration of ‘Elem’ with no type
prog.cpp:5: error: extra qualification ‘simpleList::’ on member ‘Elem’
prog.cpp:5: error: expected ‘;’ before ‘*’ token
prog.cpp:8: error: ISO C++ forbids declaration of ‘Elem’ with no type
prog.cpp:8: error: extra qualification ‘simpleList::’ on member ‘Elem’
prog.cpp:8: error: expected ‘;’ before ‘*’ token
prog.cpp:20: error: no ‘simpleList::Elem* simpleList::front()’ member function declared in class ‘simpleList’
prog.cpp:11: error: ‘struct simpleList::Elem’ is private
prog.cpp:20: error: within this context
prog.cpp:26: error: no ‘simpleList::Elem* simpleList::back()’ member function declared in class ‘simpleList’
prog.cpp:11: error: ‘struct simpleList::Elem’ is private
prog.cpp:26: error: within this context

Standard output is empty