Re: [Haskell-cafe] global variables

On 2007-05-24, David House wrote:

On 24/05/07, Adrian Hey wrote:

...

Or even at compile time (which is why I think it's reasonable to regard operations like newIORef etc.. as not really being "IO" operations at all).

You can allocate heap space at compile time? (Well, I guess you could, but that wouldn't still be usable at run time...) I imagine newIORef as mallocing() some room, then returning a pointer to that memory. That doesn't seem like something that could be done at compile time.

You can allocate bss or data space at compile time for the executable you are compiling. (Well, if you read compile as compile and link. It's a bit fuzzy.) -- Aaron Denney -><-