On Thu, 2008-08-28 at 10:00 +0100, Adrian Hey wrote:
Lennart Augustsson wrote:
I don't don't think global variables should be banned, I just think they should be severly discouraged.
If you're saying a language should not provide a sound way to do this (as I believe you are), then AFAICT for all practical purposes you *are* saying you think global variables should be banned.
Where are we going to be if the unsafePerformIO hack ever becomes *really* unsafe?
and..
I'm certain you can write a kernel in Haskell where the only use of global variables is those that hardware interfacing forces you to use.
But what you haven't explained is why this is even desirable? I don't doubt it's true in an academic sense if you don't mind sacrificing safety
What `safety' is being sacrificed?
and modularity.
What modularity? jcc