#1997: Stricter enumFrom instance for Integer, to match Int
-----------------------------------+----------------------------------------
Reporter: dons | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.10 branch
Component: libraries/base | Version: 6.8.2
Severity: normal | Resolution:
Keywords: | Difficulty: Easy (1 hr)
Testcase: lib/should_run/enum04 | Architecture: Multiple
Os: Multiple |
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Comment (by dons):
Similary, there are other list functions on numeric types that should be
strict in the
accumulator:
{{{
Prelude> sum [1..1000000]
*** Exception: stack overflow
}}}
maximum/minimum have rules for this:
{{{
"maximumInt" maximum = (strictMaximum :: [Int] -> Int);
"maximumInteger" maximum = (strictMaximum :: [Integer] -> Integer)
}}}
and 'sum' works with -O, but none of them work in GHCi -- it would be good
if
this could be made more robust.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1997#comment:5>
GHC <http://www.haskell.org/ghc/>
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