11 May
2008
11 May
'08
5:28 a.m.
Miguel Mitrofanov wrote:
As I understand it Haskell does not specify an order of evaluation and it would therefore be a mistake to write a program which relies on a particular evaluation order. This is the 'unsafe' aspect of unsafePerformIO.
Hmm... IMHO unsafePerformIO is 'unsafe' because it can lead to type errors in runtime. At least, that seems to be much more dangerous.
Oh yes, quite right. This and especially the wicked unsafeCoerce seem like great ways to shoot myself in the foot and are strong candidates for inclusion in entries to the International Obfuscated Haskell competition :) http://www.haskell.org/pipermail/haskell/2004-August/014387.html http://www.haskell.org/haskellwiki/Obfuscation Richard.