Let's say we collaborate on the code below. I'll change line 1, you'll change line 5, we'll merge both changes and then we'll see how Perforce makes the code run successfully "without conflict or even awareness of other person".

    1  x := 0
    2  x++
    3  x++
    4  x++
    5  if x > 7 {
    6    fail_horribly_at_runtime()
    7  }