MODIFIER IN C++

 

In a C++ language have Data Modifier keyword that use to modify the data type in C++.

By this modifier we can increase and decrease the storage range of the data type.

 

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For example:-

                                Storage space for int data type is 4 byte for 32 bit processor. We can increase the range by using long int which is 8 byte. We can decrease the range by using short int which is 2 byte.

 

In a C++ data modifier are divide into four type:-

 

v         👉  Long

v         👉  Short

v          👉  Signed

v          👉  Unsigned

 

DATA TYPE	SIZE IN BYTES	EXAMPLE	DEFINITION
Short	2	short int a;	Occupies 2 bytes of memory space in every operating system
Long	At least 4  bytes	long a;	In long modifier we did not need to write data type name because it default for int data type.
Unsigned long	4	Unsigned long int a;	Used for positive large integers.
Long long	8	Long long int a;	Used for very large integers.
Unsigned long long	8	Unsigned long long int a;	Used for very large positive integers.
long double	10 bytes	long double a;	Used for large floting point number.
Signed char	1	Char a;	Used for character (in range -127 to 127).
Unsigned char	1	Unsigned char a;	Used for character (in range 0 to 255).
Signed int	4	Signed int a;	Used for integers.
Unsigned int	4	Unsigned int a;	Used for non-negative integers.

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