Parameters and Default arguments?

[Moonraker101]

Just wanted to know why default arguments require you to go right to left. And what are the significances of having default arguments. I mean instead of doing this...

  int volume(int w = 4, int l = 5, int h = 5);

Why couldn't you simply do this...

int volume(int w, int l, int h)
{
  w = 4;
  l = 5;
  h = 5
  
 return w*l*h;
}

is there something I am not considering?

[maeriden]

With default arguments you can call int v = volume();. Your alternative forces you to pass 3 useless arguments.

[Branflakes91093]

Adding to maeriden's post - your alternative will always return 100, no matter what you pass it.