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There are various data types in C and the main function is to specify the type of data that can be stored by a variable like integer, floating, character, etc.
Here are the following data types in the C language:
Types | Data Types |
---|---|
Basic Data Type | int, char, float, double |
Derived Data Type | array, pointer, structure, union |
Enumeration Data Type | enum |
Void Data Type | void |
The basic data types in C languages are integer-based and floating-point based. C language is known to support both signed and unsigned literals.
Please note that the memory size of the basic data types in C language may change according to 32 or 64-bit operating system.
Here are some of the basic data types.
The points to be noted is that the size is given according to 32-bit architecture.
Data Types | Memory Size | Range |
---|---|---|
char | 1 byte | −128 to 127 |
unsigned char | 1 byte | 0 to 255 |
signed char | 1 byte | −128 to 127 |
short | 2 byte | −32,768 to 32,767 |
unsigned short | 2 byte | 0 to 65,535 |
signed short | 2 byte | −32,768 to 32,767 |
int | 2 byte | −32,768 to 32,767 |
short int | 2 byte | −32,768 to 32,767 |
signed int | 2 byte | −32,768 to 32,767 |
unsigned int | 2 byte | 0 to 65,535 |
unsigned short int | 2 byte | 0 to 65,535 |
signed short int | 2 byte | −32,768 to 32,767 |
signed long int | 4 byte | -2,147,483,648 to 2,147,483,647 |
long int | 4 byte | -2,147,483,648 to 2,147,483,647 |
long double | 10 byte | |
unsigned long int | 4 byte | 0 to 4,294,967,295 |
float | 4 byte | |
double | 8 byte |