FFT wrote:
On Wed, May 6, 2009 at 8:20 PM, Anton van Straaten
<an...@appsolutions.com> wrote:
The app is written for a client under NDA, so a blog about it would have to
be annoyingly vague.
No doubt the potential for encountering space leaks goes up as one writes
less pure code, persist more things in memory, and depend on more libraries.
Exactly. I'm worried about, e.g. needing to use something as simple as
a stream of prime numbers (see the recent thread about leaks there)
Haskell lets you easily create "infinite" lists, which is a powerful and
useful feature. But if you abuse that feature, you'll have problems,
because you don't have infinite memory. The further you traverse an
infinite list, while maintaining a reference to its head, the more
memory you use. It'd be a stretch to characterize this as "hard".
I don't see much connection between this and the space efficiency of
long-running programs.
I feel a bit like we're discussing a monster under the bed: "i bet it's
huge! its teeth must be so sharp!" Maybe we should just look under the
bed, i.e. implement what we need and see what happens?
Anton
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