Overloading

Function Overloading

Overloaded functions are funtions that share exact same name but different parameters. And each function has its own unique signature. A signature is the combination of the function's name and parameters.
signature = name + parameters

Example

int add(int a, int b){
  return a + b;
}

int add(int a, int b, int c){
  return a + b + c;
}

In this example, we define two functions sharing the same name, but each has different signature because of the different parameters. And you can define many functions sharing the same name as many as you want as long as they have different parameters.

Now look at another example

int add(int a, int b){
  return a + b;
}

float add(int a, int b){
  return a + b;
}

However, this will cause compilation error becuase two functions sharing the same signature exist at the same scope. Although they have different return types, it does not change the function signature as long as the parameters stay the same.

void func(int a, float b){
  # code ...
}

void func(int x, float y){
  # code ...
}

void func(float m, int n){
  # code ...
}

Operator Overloading

coming soon ...