[nrclark]

I always thought upvar was kind of a cool feature, and allowed laser-specific targeting in places where you'd use a global otherwise in C. Is there any specific way that it's caused problems?

[fuball63]

I like it too because it's DIY pass by reference.

[luckydude]

We obviously liked it because upvar is how Little passes by reference. I don't know why someone thought upvar was bad, it is useful.