Nested Structures

[hpacleb]

Error says that "field warmss has incomplete type"
How do I declare another structure inside a nested structure ?
How do I use them in my inputs and outputs?
I could only manage to do a nested structure.
Order is my nested structure and I want another structure inside it which is item.

#include<iostream>
#include<sstream>
#include<string>
#include<iomanip>
using namespace std;

int main ()

{   struct Order{
           int day;
           int month;
           int year;
           int quantity;
           struct item warmss;
           };
           struct item{
                  int id;
                  string iname;
                  int price;
                  };
    struct Name{
           string last;
           string first;
           };
    
    struct Customer{
           struct Name cool;
           string contact;
           struct Order hot;
           };
           
    Customer C;
    Order O;
    cin >> C.hot.day;
    cout << C.hot.month;
    system("pause");
    return 0;
    }
        

[LNboLyTq]

Hi hpacleb,
Why did you put all struct definitions in a function?
'item' is defined below struct 'Order'; the compiler does not know the type of 'warmss' since the struct 'item' is not yet defined.

You might want to change your code a bit.

#include<iostream>
#include<sstream>
#include<string>
#include<iomanip>
using namespace std;

           struct item{
                  int id;
                  string iname;
                  int price;
                  };

 struct Order{
           int day;
           int month;
           int year;
           int quantity;
           item warmss;
           };

    struct Name{
           string last;
           string first;
           };
    
    struct Customer{
           struct Name cool;
           string contact;
           struct Order hot;
           };

int main ()
{  
    Customer C;
    Order O;
    cin >> C.hot.day;
    cout << C.hot.month;
    system("pause");
    return 0;
    }
        

Hope this helps,
Andy.