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Differentiate between array and structures in C
The major differences between an array and a structure in C programming language are as follows −
| Arrays | Structures |
|---|---|
| An array is a single entity representing a collection of data items of same data types. |
A structure is a single entity representing a collection of data items of different data types. |
| Individual entries in an array are called elements. |
Individual entries in a structure are called members. |
| An array declaration reserves enough memory space for its elements. |
The structure definition reserves enough memory space for its members. |
| There is no keyword to represent arrays but the square braces [] preceding the variable name tells us that we are dealing with arrays. |
The keyword struct tells us that we can deal with structures. |
| Initialization of elements can be done during array declaration. |
Initialization of members can be done only during structure definition. |
| The elements of an array are stored in sequence of memory locations. |
The members of a structure are not stored in sequence of memory locations. |
| The array elements are accessed and followed by the square braces [] within which the index is placed. |
The members of a structure are accessed by the dot operator. |
| Its general format is data type variablename [size]; |
Its general format is as follows −struct <struct name>{
data_type structure member 1;
data_type structure member 2;
•
•
•
data_type structure member N;
} structure variable;
|
For example,int sum (100); |
For example,struct student{
char studname (25);
int rollno;
} stud1;
|
Updated on: 2021-09-02T13:17:30+05:30
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