Initializing a nested structure throws error in C++

Question

I am learning structures in C++. Got the following error while executing the code:

Error: Too many initializer for CompData.

It would be great if someone could point out the mistake.

Code:

#include <iostream>
#include <string>

struct EmpData
{
    std::string name;
    int age;
    double salary;
};

struct DepartmentData
{
    std::string departmentName;
    struct EmpData;
};

struct CompData
{
    std::string compName;
    struct DepartmentData;
};

int main()
{
    CompData DeltaF 
    {
        "DeltaF",
        {
            "Product Development",
            {
                "Steve", 35, 1223
            }
        }
    };
    
}

struct EmpData; doesn't do what you think it does. You need something like EmpData data; — HolyBlackCat
– HolyBlackCat, Commented Jul 12, 2021 at 13:46
In C++ you don't need to prepend struct keyword to declare a variable with a structure type, like you need with C. What you are actually doing in your DepartmentData type is declaring a nested type. — Jorge Bellon
– Jorge Bellon, Commented Jul 12, 2021 at 13:53

463035818_is_not_an_ai · Accepted Answer · 2021-07-12 14:02:16Z

2

Here:

struct DepartmentData
{
    std::string departmentName;
    struct EmpData;
};

You declare a structure EmpData, full name is DepartmentData::EmpData. It is a different type than EmpData you declared and defined above. If you want DepartmentData to have a member of type EmpData you can remove struct and need to give it a name:

struct DepartmentData
{
    std::string departmentName;
    EmpData empData;             // member of type EmpData called empData
};

Same for the DepartmentData member of CompData. If you fix those, your code compiles without errors.

answered Jul 12, 2021 at 14:02

463035818_is_not_an_ai

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