#8695: Arithmetic overflow from (minBound :: Int) `quot` (-1) ------------------------------------------------+-------------------------- Reporter: rleslie | Owner: Type: bug | Status: patch Priority: normal | Milestone: 7.8.1 Component: libraries/haskell2010 | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect result at runtime | Unknown/Multiple Test Case: | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: #1042 ------------------------------------------------+-------------------------- Comment (by hvr): Replying to [comment:14 rwbarton]:
[...] Unfortunately, there is no choice of behavior that is best in all contexts. For the kinds of programs I most often write, which are computations I run on my own computer, raising an exception is preferable ("safer"). [...]
IMHO, different types should be used for different contexts. If you want exceptions on any kind of overflow, use something like hackage:safeint, if you don't want overflows at all, use `Integer`, and if want wrap-around on overflow, use plain `Int`s. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8695#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler