On Thu, 16 May 2013, Vincent Hanquez wrote:

On Thu, May 16, 2013 at 10:24:31AM +0200, Henning Thielemann wrote:

If at all, I'd suggest a name without the 'b', since the other
functions like 'shift' do not contain a 'b' as well.

apologies if i misunderstood you, but i think that's the whole point.
the b is there because it's different than shift.
shift works on bits, and bswap works on bytes.

If it would work on bits, I would certainly not call it swap, but 'reverse'. On the MC68000 processor there was an assembly instruction "swap" that swapped upper and lower 16 bits of a 32 bit word.

However if you really only want to swap byte order (and not 16 bit words within 64 bit words and so on), then how about just using a package like 'endian':

   http://hackage.haskell.org/packages/archive/data-endian/0.0.1/doc/html/Data-Endian.html

?

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