如何在一个 function 中返回两个 char* class 变量？

Question

I have the following class definition and the GetName function is supposed to return the full name(first and last name), which are char*. Someone told me to concatenate them into a global variable and then to return it inside the function but I just can't figure out how to do that.

Can someone show me an example please?

    class bank_Database
{
    int AccountNumber;
    std::string CNP, PhoneNumber;
    char* First_Name[256], Last_Name[256];
    float MoneyBalance;


public:
    bank_Database() {};
    void AddAccount(); //function to create an account 
    void ModifyDetails(); //function to modify name, phone and balance.
    void DisplayAccDetails(); //function to display details
    char* GetName(); //functions to get details
    const std::string Get_PhoneNumber();
    const int Get_AccNumber();
    const std::string Get_CNP();
};

Answer 1

Yes, you can return two arrays:

auto get() {
  std::array<std::array<char, 256>, 2> names;
  // ...

  return names;
}

Alternatively, you can create a name object and return that:

struct Name
{
  std::array<char, 256> first;
  std::array<char, 256> last;
};

auto get()
{
  Name name;
  // ...

  return name;
}

Finally, you may consider using std::string instead of arrays as it is more flexibly.

Answer 2

Return result as std::pairstd::string,std::string result= std::make_pair(firstname, secondname);

Consider also using structured binding to use the result of your function

auto[first,second]=Getname()