RE: $hash{$_}++

[Peter Cornelius]

> > The value.  If you wanted to increment the key, you would say
> > "$hash{$key++}".
> 
> Wait a sec, brain cramp....
> Wouldn't that:
>   1) just access $hash{$key}
>   2) increment $key
>   3) add $hash{$key + 1}
> 

I realize this is getting away from the original post, but I'm confused by
#3 here.  Wouldn't it just do 1 and 2?  Would it actually access the hash
twice?