arrays of structures

this presentation includes the whole concept of arrays of structure. it is sufficient

1. Arrays of Structures

2. What is array ? An array is a collection of variables of the same data type that are referenced by a common name . Eg : int arr [3]; (2bytes) 1 (2bytes) 2 (2bytes) arr [0] arr [1] arr [2]

3. What is structure ? A structure is a grouping of several variables of different data types. Struct keyword is used. Eg : struct book { int page; (2bytes) (15bytes) (4bytes) char author[15]; page author price float price; };

4. What is Arrays of structures ? Since an array can contain similar elements , the combination having structures within array is an array of structures .

5. Arrays of structures Eg : struct fraction { int numerator; // 2 bytes int denominator; //2 bytes }; Struct fraction f1[4]; // this is an array of structure

6. Memory allocation of arrays of structures Total size of f1 = 4*2*2=16 bytes 0 (4) 1 (4) 2 (4) 3(4) N D N D N D N D f1[0] f1[1] f1[2] f1[3]

7. Accessing the elements of array of structure Struct fraction f1[4]; For( i =0;i<4;i++) { Printf (“%d”,f1[ i ].numerator); Printf (“%d”,f1[ i ].denominator); }

8. Thank you Any queries ? prepared by : Arushi