What does overloading in c++ means?

Answer 1

OVERLOADING is when you create a function that works with different types and count of parameters

For example, if you have function `sum`, to add support of different types like:
int, float, or even string
you have to OVERLOAD your function
Example:
int sum(int a, int b) {
return a + b;
}
This function will take only integer values, but if you want to sum float also
you should add overload of function.
Example:
float sum(float a, float b) {
return a + b;
}
Now your function is returning float value when you passing `floats` to it

Compiler will choose function, depending on types.
From now, ehen you will call function with int parameters:
sum(3, 5);
It will return INTEGER value 8

Otherwise, if you will pass float values it will choose correct function, that takes floats:
sum(3.5, 4.5);
This code will return FLOAT value ~8.0

If it cant found function that takes given amount of arguments and have right types, it will throw an error

Answer 2

when U use the same function more than one time with diffrent parameters