It doesn't do any copying.
On Thu, May 19, 2011 at 3:27 AM, Christian Höner zu Siederdissen
Hi,
I'd like to use repa in a rather perverted mode, I guess:
for my programs I need to be able to update arrays in place and repeatedly perform operations on them. Right now, it basically works like this (in ST):
- create unboxed space using "primitive" (same as unboxed vectors) - unsafefreeze unboxed space - perform calculations on frozen, immutable space - write result into mutable space (which is shared with the unsafefrozen space)
- In principle, this should work with repa as well, I think. The question is: does "Repa.Internals.Base.fromVector" any copying, or does it just use the unboxed vector as-is internally?
should I expect any problems? ;-)
Gruss, Christian
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