Nested Structure in C

Nested Structure in C


  • can be declared inside other structure as we declare structure members inside a structure.
  • The structure variables can be a normal structure variable or a pointer variable to access the data. You can learn below concepts in this section.
  1. Structure within structure in C using normal variable
  2. Structure within structure in C using pointer variable

1. STRUCTURE WITHIN STRUCTURE IN C USING NORMAL VARIABLE:

  • This program explains how to use structure within structure in C using normal variable. “student_college_detail’ structure is declared inside “student_detail” structure in this program. Both structure variables are normal structure variables.
  • Please note that members of “student_college_detail” structure are accessed by 2 dot(.) operator and members of “student_detail” structure are accessed by single dot(.) operator.

 
  • #include <stdio.h> 
  • #include <string.h> 
  •  
  • struct student_college_detail 
  • { 
  • int college_id; 
  • char college_name[50]; 
  • }; 
  •  
  • struct student_detail  
  • { 
  • int id; 
  • char name[20]; 
  • float percentage; 
  • // structure within structure 
  • struct student_college_detail clg_data; 
  • }stu_data; 
  •  
  • int main()  
  • { 
  • struct student_detail stu_data = {1, "Raju", 90.5, 71145, 
  • "Anna University"}; 
  • printf(" Id is: %d \n", stu_data.id); 
  • printf(" Name is: %s \n", stu_data.name); 
  • printf(" Percentage is: %f \n\n", stu_data.percentage); 
  •  
  • printf(" College Id is: %d \n",  
  • stu_data.clg_data.college_id); 
  • printf(" College Name is: %s \n",  
  • stu_data.clg_data.college_name); 
  • return 0; 
  • } 

Output:

Id is: 1
Name is: Raju
Percentage is: 90.500000

College Id is: 71145