Assignment operators in C++ | Shorthand operators in C++
Assignment operators in C++ are also known as shorthand operators in C++. They are used to update the existing value of a variable in an easy way. Various Assignment operators in C++ are:
i. =
It is used to assign some value to a variable.
Example:
n=10
ii. +=
It adds some value to the existing value of a variable.
Example
n=10
n+=3 #n=10+3 =13
n becomes 13
iii. -=
It subtracts some value from existing value of a variable.
Example
n=10
n-=3 #n=10-3 =7
n becomes 7
iv. *=
it multiplies existing value of a numeric variable by another value.
Example
n=10
n*=3 #n=10*3 =30
n becomes 30
v. /=
it divides existing value of a numeric variable by another value.
Example
n=10
n/=3 #n=10/3 =3.33333333
n becomes 3.33333333
vi. //=
it divides existing value of a numeric variable by another value and finds quotient without any digit after decimal point.
Example
n=10
n//=3 #n=10//3 =3
n becomes 3
vii. %=
it divides existing value of a numeric variable by another value and find remainder.
Example
n=10
n%=3 #n=10%3 =1
n becomes 1
viii. &=
Applies bitwise AND operator on existing value of a numeric variable along with another value .
Example
n=10
n&=7 #n=10&7 =2
n becomes 2
ix. |=
Applies bitwise OR operator on existing value of a numeric variable along with another value .
Example
n=10
n|=7 #n=10|7 =15
n becomes 15
x. ^=
Applies bitwise XOR operator on existing value of a numeric variable along with another value .
Example
n=10
n^=7 #n=10^7 =13
n becomes 13
xi. <<=
Applies bitwise LEFT SHIFT operator on existing value of a numeric variable.
Example
n=10
n<<=1 #n=10<<1 =20
n becomes 20
xi. >>=
Applies bitwise RIGHT SHIFT operator on existing value of a numeric variable.
Example
n=10
n>>=1 #n=10>>1 =5
n becomes 5
//Program to demonstrate the use of shorthand operators.
#include<iostream>
using namespace std;
int main()
{
int n=10;
n+=5;
cout<<”\n n+=5 =”<<n;
n-=3;
cout<<”\n n-=3 =”<<n;
n*=3;
cout<<”\n n*=3 = ”<<n;
n/=2;
cout<<”\n n/=2 =”<<n;
n%=3;
cout<<”\n n%=3 =”<<n;
return 0;
}
Output
n+=5 = 15 n-=3 = 12 n*=3 = 36 n/=2 = 18 n%=3 = 0