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#include <iostream>
#include <list>
 
using namespace std;
 
class person
{
    private:
        string name;
        string *spouse;
 
    public:
        void setName(string tempName) { name = tempName; }
        void setSpouse(string &tempSpouse) { spouse = &tempSpouse; } // ERROR HERE?
 
        string getName() { return name; }
        string getSpouse() { return spouse; } // ERROR HERE?
};
 
int main()
{
    person entry;
    list<person> personList;
    list<person>::iterator itr1, itr2;
 
    /* Adding two people/nodes to the linked list. */
 
    entry.setName("John Doe");
 
    personList.push_back(entry);
 
    entry.setName("Tina Doe");
 
    personList.push_back(entry);
 
    /* Attempting to assign Tina Doe as John Doe's spouse. */
 
    for (itr1 = personList.begin(); itr1 != personList.end(); itr1++)
    {
        if (itr1->getName() == "John Doe")
        {
            for (itr2 = personList.begin(); itr2 != personList.end(); itr2++)
            {
                if (itr2->getName() == "Tina Doe")
                {
                    itr1->setSpouse(itr2->getName()); // ERROR HERE?
                }
            }
        }
    }
 
    /* Displaying all Names with Spouses afterwards. */
 
    for (itr1 = personList.begin(); itr1 != personList.end(); itr1++)
    {
        cout << "Name: " << itr1->getName() << " | Spouse: " << itr1->getSpouse() << endl;
    }
 
    return 0;
}

prog.cpp: In member function 'std::string person::getSpouse()':
prog.cpp:17:37: error: could not convert '((person*)this)->person::spouse' from 'std::string* {aka std::basic_string<char>*}' to 'std::string {aka std::basic_string<char>}'
         string getSpouse() { return spouse; } // ERROR HERE?
                                     ^
prog.cpp: In function 'int main()':
prog.cpp:46:52: error: no matching function for call to 'person::setSpouse(std::string)'
                     itr1->setSpouse(itr2->getName()); // ERROR HERE?
                                                    ^
prog.cpp:46:52: note: candidate is:
prog.cpp:14:14: note: void person::setSpouse(std::string&)
         void setSpouse(string &tempSpouse) { spouse = &tempSpouse; } // ERROR HERE?
              ^
prog.cpp:14:14: note:   no known conversion for argument 1 from 'std::string {aka std::basic_string<char>}' to 'std::string& {aka std::basic_string<char>&}'

Standard output is empty