[Box Backup-dev] PPC workaround (was: COMMIT r436 - in box/trunk: . lib/raidfile)

[Jonathan Morton]

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> This is the reason I took the decision to rewrite that section of code
> in such a way that I could be sure the bug would never be triggered,
> while also trying to improve code readability. The result uses no  
> casts,
> is simple code that the compiler should be very safe with, and to me
> seems easier to follow.

Regardless of whether the compiler can optimise a memcpy() away, I  
think the right way to correct a problem of this type is to use a  
union.  Casting via pointers is really a hackish way to do a union  
anyway, and not as good.  I'll fix it at my end, after checking that  
your fix actually works.

--------------------------------------------------------------
from:     Jonathan "Chromatix" Morton
mail:     chromi at chromatix.org.uk
website:  http://www.chromatix.uklinux.net/
tagline:  The key to knowledge is not to rely on people to teach you it.



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