Data Types in C

Variables in C are associated with data type. Each data type requires an amount of memory and performs specific operations.

There are some common data types in C −

int − Used to store an integer value.
char − Used to store a single character.
float − Used to store decimal numbers with single precision.
double − Used to store decimal numbers with double precision.

The following table displays data types in C language −

Data Types	Bytes	Range
short int	2	-32,768 to 32,767
unsigned short int	2	0 to 65,535
unsigned int	4	0 to 4,294,967,295
int	4	-2,147,483,648 to 2,147,483,647
long int	4	-2,147,483,648 to 2,147,483,647
unsigned long int	4	0 to 4,294,967,295
signed char	1	-128 to 127
unsigned char	1	0 to 255
float	4	1.2E-38 to 3.4E+38
double	8	2.3E-308 to 1.7E+308

Here is the syntax of datatypes in C language,

data_type variable_name;

Here is an example of datatypes in C language,

Example

#include >stdio.h>
int main() {
   // datatypes
   int a = 10;
   char b = 'S';
   float c = 2.88;
   double d = 28.888;
   printf("Integer datatype : %d\n",a);
   printf("Character datatype : %c\n",b);
   printf("Float datatype : %f\n",c);
   printf("Double Float datatype : %lf\n",d);
   return 0;
}

Here is the output,

Output

Integer datatype : 10
Character datatype : S
Float datatype : 2.880000
Double Float datatype : 28.888000