Question

I’m working on a C++ project. I’m teaching myself C++ after using Java. Code:

#include <iostream>
#include <string>

using namespace std;
class dayType
{
private:
    string day;
    string week[] = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};


public:
    dayType()
    {
        day = "Monday";
        dayID = 0;
    }
};

There are more public functions, but I left those out because they aren’t important here. There is a compile time error on the array. It says it is “Unable to resolve identifier: week”, “unexpected token: {“, and “unexpected token:}”. Can someone explain why this is happening? If I declare it as “string week[7];” and then define the actual values in the functions, it works fine, but that’s a pain.

Answer 1

The C++ feature you are looking for is “static class members”. Here is the syntax:

#include <iostream>
#include <string>

using namespace std;
class dayType
{
private:
    string day;
    static string week[];

public:
    void Project113()
    {
        day = "Monday";
        dayID = 0;
    }
};


// Note that if the class definition is in a .H file, the following line should
// appear in exactly one .CPP file.
string dayType::week[] = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};