C++ - assignment operators example

The example below shows the usage of assignment and compound assignment operators:

= Assignment operator
+= Addition AND assignment operator
-= Subtraction AND assignment operator
*= Multiply AND assignment operator
/= Division AND assignment operator
%= Modulo AND assignment operator

#include <iostream>
using namespace std;
 
int main (){
  float a = 25;

  cout<<"a = "<<a<<"\n";

  //Addition AND assignment operator
  a += 5;
  cout<<"a += 5; makes a = "<<a<<"\n";

  //Subtraction AND assignment operator
  a -= 8;
  cout<<"a -= 8; makes a = "<<a<<"\n";

  //Multiply AND assignment operator
  a *= 4;
  cout<<"a *= 4; makes a = "<<a<<"\n";

  //Division AND assignment operator
  a /= 2;
  cout<<"a /= 2; makes a = "<<a<<"\n";

  //Modulo AND assignment operator
  //works only with integral operands
  int b = 25;
  cout<<"\nb = "<<b<<"\n";
  b %= 7;
  cout<<"b %= 7; makes b = "<<b<<"\n";
  return 0;
}

The output of the above code will be:

a = 25
a += 5; makes a = 30
a -= 8; makes a = 22
a *= 4; makes a = 88
a /= 2; makes a = 44

b = 25
b %= 7; makes b = 4

❮ C++ - Operators