Data types in the c programming language are used to specify what kind of value can be stored in a variable. The memory size and type of the value of a variable are determined by the variable data type.
| Data Type |
Memory ( in bytes) |
Range |
Format Specifier |
| Integer Datatypes |
| short int |
2 |
-32,768 to 32,767 |
%hd |
| unsigned short int |
2 |
0 to 65,535 |
%hu |
| unsigned int |
4 |
0 to 4,294,967,295 |
%u |
| int |
4 |
-2,147,483,648 to 2,147,483,647 |
%d |
| long int |
4 |
-2,147,483,648 to 2,147,483,647 |
%ld |
| unsigned long int |
4 |
0 to 4,294,967,295 |
%lu |
| long long int |
8 |
-(2^63) to (2^63)-1 |
%lld |
| unsigned long long int |
8 |
0 to 18,446,744,073,709,551,615 |
%llu |
| Character Datatypes |
| signed char |
1 |
-128 to 127 |
%c |
| unsigned char |
1 |
0 to 255 |
%c |
| Float Datatypes |
| float |
4 |
|
%f |
| double |
8 |
|
%lf |
| long double |
16 |
|
%Lf |
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