- In the C programming language, data types refers to an extensive system for declaring variables of different types.
- In simple terms just remember that data types are used to define the type of data(integer,character,double etc) and the size of data.
Types and Description
They are arithmetic types and consists of the two types: (a) integer types and (b) floating-point types.
They are again arithmetic types and they are used to define variables that can only be assigned certain discrete integer values throughout the program.
|3||The type void:|
The type specifier void indicates that no value is available.
They include (a) Pointer types, (b) Array types, (c) Structure types, (d) Union types and (e) Function types.
|char||1 byte||-128 to 127 or 0 to 255|
|unsigned char||1 byte||0 to 255|
|signed char||1 byte||-128 to 127|
|int||2 or 4 bytes||-32,768 to 32,767 or -2,147,483,648 to 2,147,483,647|
|unsigned int||2 or 4 bytes||0 to 65,535 or 0 to 4,294,967,295|
|short||2 bytes||-32,768 to 32,767|
|unsigned short||2 bytes||0 to 65,535|
|long||4 bytes||-2,147,483,648 to 2,147,483,647|
|unsigned long||4 bytes||0 to 4,294,967,295|
double 8 bytes
long 10 bytes
NOTE-- SYNTAX-->> char c= ' a ' ;
int a= 10;
float a= 10.44;
THIS IS HOW WE DECLARE VARIABLES.