What are the different types of data in C language?

A data type is a memory location or declaration of a variable. Data can be of different types. Examples of data types in C language are as follows:

Integers, rational numbers, integers, real numbers, complex numbers, vectors, characters, etc.

For machines In hardware terms, data is encoded as a sequence of binary bits 0 and 1. In the machine, integer data is processed in the Arithmetic Logic Unit (ALU) and fractional data is processed in the Floating Point Unit (FPU). This is reflected in the built-in or primitive data types of high-level languages.

Built-in data types

There are different built-in data types in C language, some of them are as follows:

Int, float, char, unsigned int, unsigned char, long Int, double, etc.

Use of data

In C language, you can use different types to store data in different ways. Here are some examples:

• char string, grade='A';
• int count, index=10;
• float average=6.9;

In the above example, char, int, and float are built-in data types, while string and grade are variables of type char.

• #Grade=’A’ initializes the variable grade to the character code of the character ‘A’.

• Count and index are variables of type int.

• And index=10 initializes the variable to 10 in binary representation.

Example

The following is a C program to find the size of variables and built-in data types:

Live Demo

#include<stdio.h>
int main(){
   int x = 10;
   char c;
   printf("Size of variable x = %ld bytes</p><p>",sizeof(x));
   printf("Size of variable c = %ld byte</p><p>",sizeof(c));
   printf("Size of short is %ld bytes</p><p>",sizeof(short));
   printf("Size of int is %ld bytes</p><p>",sizeof(int));
   printf("Size of long is %ld bytes</p><p>",sizeof(long));
   printf("Size of float is %ld bytes</p><p>",sizeof(float));
   printf("Size of double is %ld bytes</p><p>",sizeof(double));
   printf("Size of long double is %ld bytes</p><p>",sizeof(long double));
   printf("Size of char is %ld bytes</p><p>",sizeof(char));
   printf("Size of void is %ld bytes</p><p>",sizeof(void));
   return 0;
}

Output

When the above program is executed, the following results are produced-

Size of variable x = 4 bytes
Size of variable c = 1 byte
Size of short is 2 bytes
Size of int is 4 bytes
Size of long is 4 bytes
Size of float is 4 bytes
Size of double is 8 bytes
Size of long double is 16 bytes
Size of char is 1 bytes
Size of void is 1 bytes

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