C++ Swap Function

Sure! I can provide an explanation of the steps involved in a C++ swap function. Here's a breakdown of the process:

1. Function Declaration: The swap function is declared using the void keyword, which indicates that it does not return any value. It takes two parameters by reference, typically denoted as a and b. The parameters are references because we want to modify the values of the variables passed to the function.

void swap(int& a, int& b);

1. Function Definition: The function body is defined, usually outside of the main function or any other function that calls it. Inside the function, the values of a and b are swapped using a temporary variable. The temporary variable is necessary to store the value of a before it is overwritten.

void swap(int& a, int& b) {
  int temp = a;
  a = b;
  b = temp;
}

1. Function Call: To use the swap function, you need to call it and pass the variables you want to swap as arguments. The values of the variables will be modified after the function call.

int x = 5;
int y = 10;
swap(x, y);

In this example, the values of x and y will be swapped, so x will have the value of 10 and y will have the value of 5 after the function call.

That's a brief explanation of the steps involved in a C++ swap function. Let me know if you have any further questions.