C++ Function Parameters

Get acquainted with actual parameters, formal parameters, and the default values of the parameters.

Function parameters #

We can declare the variables inside the function definition as parameters. We specify the list of parameters separated by a comma inside the round brackets. In C++, we have:

  • Formal parameters
  • Actual parameters

Formal parameters #

Formal parameters are the variables defined in the function definition. These variables receive values from the calling function. Formal parameters are commonly known as parameters.

Actual parameters #

Actual parameters are the variables or values passed to the function when it is called. These variables supply value to the called function. Actual parameters are commonly known as arguments.