1. Chapter 10-1: Structure

2. Structure: Definition
Constructed datatype used for packing data of different datatype
Structure is a collection of variables of different types under a single name.
Convenient tool for handling a group of logically related data item.
Helps to organize complex data in a more meaningful way.
Various datatype inside structure called member
Some other language structure called records and member called fields
Structure vs array?

3. Declaring Structure variable
Includes following elements
Keyword struct
Structure tag name
List of variable
A terminating semicolon
Example

4. Initialization structure
struct book_bank {
char title[20]; char authors[15]; int page; float price;
} book1 = {“C programming”, “Balagurusami”, 270, 200}
book2= {“Muna Madan”, “L.P Devkota”, 100, 19};

5. Example1

6. Declaring after structure is close
Syntax:
struct structure_tag_name variable_name;
Example2:

7. Accessing structure Member
Syntax
StrucutreName.memberVariable;

8. Copying and Comparing structure variable
Can be copies same ways normal variable
But for comparing individual members should be compared

9. Array of Structures
Can be declared in same way as normal array.
Eg 3:

10. Array within structure
Example 4

11. Structure within structure
Example 5

12. Structure and function
Three methods by which values of structure can be transformed
Pass each member of structure as a actual argument to function. Not efficient and unmanageable when structure size is large
Pass the entire copy of structure. Since function is working on a copy of the structure, any change to structure member are in reflected in original function
Use concept of pointer. Pass address

13. Example 6, 7 and 8

14. Union and union vs structure
Left to student