
On Mon, Oct 27, 2008 at 9:48 AM, L.Guo
Hi all:
I just read about definitions of Prelude [1], and noticing that.
In 6.4.6 Coercions and Component Extraction, it discribes like this:
"round x returns the nearest integer to x, the even integer if x is equidistant between two integers."
I think this is unresonable. then try it in GHC 6.8.3.
Prelude> round 3.5 4 Prelude> round 2.5 2
Is there any explanation about that ?
[1] The Haskell 98 Report: Predefined Types and Classes http://haskell.org/onlinereport/basic.html
This behaviour is not what I expect after reading the description at http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#v:round . Given that this behaviour has caused a bit of confusion I think a change to the documention might be in order. /M -- Magnus Therning (OpenPGP: 0xAB4DFBA4) magnus@therning.org Jabber: magnus@therning.org http://therning.org/magnus identi.ca|twitter: magthe