On Sat, 11 Aug 2007, Derek Elkins wrote:
On Sat, 2007-08-11 at 21:10 +0200, Henning Thielemann wrote:
Btw. is there any application, where 'quot' and 'rem' are needed? All occurrences of 'quot' and 'rem' I found in code so far were actually wrong and should have been 'div' and 'mod'.
http://www.haskell.org/haskellwiki/Things_to_avoid#Forget_about_quot_and_rem
quotRem is faster than divMod,
Seems that CPU design should be changed.
and my understanding is that even divMod is arguably broken.
In what way? I can't deduce it from your reference. Quote: "Boute argues that Euclidean division is superior to the other ones in terms of regularity and useful mathematical properties, although floored division, promoted by Knuth, is also a good definition. Despite its widespread use, truncated division is shown to be inferior to the other definitions."
http://www.cs.uu.nl/~daan/download/papers/divmodnote-letter.pdf
Thanks for the reference!