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.
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. |