Bitwise operations and md4digest function
alex at tweedly.net
Wed Nov 23 20:09:40 CST 2005
Alex Tweedly wrote:
> It can do some arithmetic above 0xFFFFFFF (7 Fs)
> For instance, in 2.5 and 2.2.1 I can do
> put format("%x", 2^31 + 5) ----> 80000005
> (i.e. it has successfully taken an addition into the range above INT32)
> or even
> put format("%08x %u", 2^32 / 2^30, 2^32 / 2^30) ---> 00000004 4
> I'd be interested to hear what things you had trouble with ...
Not to worry - I found some that fail, so I'm now "happy" to not use it.
Haven't figured out the pattern yet - but have found enough to convince
me it's not usable without great care - and possible not even *with* care.
Alex Tweedly http://www.tweedly.net
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