Overloading binary operators

Question

What is binary operator overloading and how does it take place in detail?

Answer 1

https://code.sololearn.com/cd1zwGCBNd1z/?ref=app
https://code.sololearn.com/cd9dd83t48MU/?ref=app

please read both codes , difference is in where the overloaded function declared.
According to the place of declaration number of parameters change.
as it is binary operator , there must be two operands.
//declaration inside class
it becomes member function of class and one operand is that object on which operator function is invoked, we need only one parameter.
//declaration outside class
we need to parameters to function

Answer 2

check this too

https://code.sololearn.com/c5RjZE1V291u/?ref=app

Answer 3

In object oriented programming, operator overloading is more just telling the program what to do when adding, subtracting, multiplying, etc. classes. In this example for Python, I created a class named add that has 2 functions. The first one is called when the object is created. It sets one variable, x. The other function is __add__, which is an operator overloader (or whatever they are called) which defines what to do when the class is added to itself. What it does it adds the variable x from that same class, being referenced by the keyword self, to the variable x in the other class, being referenced by the keyword other.

class add:
def __init__(self,x):
self.x = x
def __add__(self,other):
return self.x + other.x

a = add(5)
b = add(6)
print(a + b)

The same thing can also be done with equality testing (ie. ==) or the greater than or less than signs (ie. <, >=)

Answer 4

//correct me if I am wrong
operators are similar to functions
int x = 5, y= 10;
cout<< x+y;
here (+) is binary operator as there are two parameters x and y.
now overloading operator means , I can use different data types with binary (+). Here different data types means user defined classes.
For example If i have written a class (in above example -> Example)
And if i want to add two Example objects using (+) operator
I have to overload (+) operator to use on Example data type