Data Types in C language
Data types represents different types of data like text, string, numbers etc.
It also represents a kind of value which determines what operations can be performed on that data.
In C, data types represent what type of data to be stored in variables and also determines the type and size of data associated with variables. The process is type declaration.
Example:
int radius;
Here, radius is a variable of int (integer) type. And, the size of int is 4 bytes.
Basic Data Types
Below are the list of basic data types in C language along with their memory size in bytes.
| Type | Memory Size (bytes) | Format Specifiers |
|---|---|---|
| int | 2 (32 Bits), 4 (64 Bits) | %d, %e (scientific) |
| char | 1 | %c |
| float | 4 | %f |
| double | 8 | %lf |
| long double | 16 | %Lf |
| short int | 2 | %hi |
| unsigned int | 2 (32 Bits), 4 (64 Bits) | %hu |
| long int | 4 (32 Bits), 8 (64 Bits) | %ld |
| long long int | 8 | %lld |
| unsigned long int | 4 | %lu |
| unsigned long long int | 8 | %llu |
| signed char | 1 | %c |
| unsigned char | 1 | %d |
NOTE: There is also another datatype void which represent nothing or no type.
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