Question

Need help, please guide me on this.
How to solve the errors as stated below?

• 30:24:error:expected ‘)’ before ‘,’ token

• In member function ‘int Address::compareTo(const Address&)’:

• 41:26:error:’std::string’ has no member named ‘compareTo’

    #include<iostream>
    using namespace std;

    class Address {
      int    houseNumber;
      string street;
      int    apartmentNumber;
      string city;
      string state;
      string zipCode; // e.g., "47405-1234"
      Address(int houseNumber, 
              string street, 
              // no apartmentNumber  
              string city, 
              string state, 
              string zipCode) { 
        this->houseNumber = houseNumber; 
        this->street = street; 
        this->city = city; 
        this->state = state; 
        this->zipCode = zipCode; 
      } 
      Address(int houseNumber, 
              string street, 
              int apartmentNumber, 
              string city, 
              string state, 
              string zipCode) { 
        this(houseNumber, street, city, state, zipCode);
        this->apartmentNumber = apartmentNumber; 
      } 
      void print(void) {
             std::cout << "Street: " << street << "\nCity: " 
                 << city << "\nState: " << state << "\nPostal Code: " << zipCode;
    }

      int compareTo(const Address &a) { 
        // same conventions as for Strings
        return this->zipCode.compareTo(a); 
      }
    };

Answer 1

The function you’re looking for is compare, not compareTo (Java, C# anyone)?

Also, note that angle is not declared in your scope. Did you mean:

return this->zipCode.compare("angel"); 

or did you just omit the variable?

You also (“should” where applicable):

• don’t need this->
• as an alternative to compare you can use == (this returns true for equality)
• print and compareTo should be marked as const
• use member initializer lists in the constructors
• remove the using namespace std; from the header
• separate the implementations in source files
• use include guards for headers
• proper indentation
• pass string parameters to the constructor by const &…