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Structure within Structure : Nested Structure

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• Structure written inside another structure is called as nesting of two structures
• A structure can be the member of another structure

Way 1 : Declare two separate structures

struct date
{
   int date;
   int month;
   int year; 
};
struct Employee
{
   char ename[20];
   int ssn;
   float salary;
   struct date doj;
}emp1;

Accessing Nested Elements :

1. As we know , Structure members are accessed using dot operator.
2. 'date' structure is nested within Employee Structure.
3. Members of the 'date' can be accessed using 'employee'
4. emp1 & doj are two structure names (Variables)

How ?

Accessing Month Field :  emp1.doj.month   
Accessing day Field   :  emp1.doj.day  
Accessing year Field  :  emp1.doj.year

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Way 2 : Declare Embedded structures

struct Employee
{
   char ename[20];
   int ssn;
   float salary;
   struct date
       {
       int date;
       int month;
       int year; 
       }doj;
}emp1;

Accessing Nested Members :

Accessing Month Field :  emp1.doj.month   
Accessing day Field   :  emp1.doj.day  
Accessing year Field  :  emp1.doj.year

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Tags / Keywords : | Accessing Structure Elements, nested structures, structure

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