Compute area of a rectangle using default arguments. : Function Arguments « Function « C++

1. C++
2. Function
3. Function Arguments

Compute area of a rectangle using default arguments.

 


#include <iostream>
using namespace std;


double rect_area(double length, double width = 0)
{
  if(!width) 
     width = length;
  return length * width;
}

int main()
{
  cout  << "10 x 5.8 rectangle has area: ";
  cout << rect_area(10.0, 5.8) << '\n';

  cout  << "10 x 10 square has area: ";
  cout << rect_area(10.0) << '\n';

  return 0;
}


           
         
  

Related examples in the same category

1.	A example of default arguments.
2.	Use default argument
3.	Default function arguments