#1493: Int with Prelude-functions works, but Integer with generic-list-functions
doesn't
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Reporter: guest | Owner:
Type: support request | Status: new
Priority: low | Milestone:
Component: Prelude | Version: 6.6.1
Severity: normal | Keywords:
Difficulty: Unknown | Os: Windows
Testcase: | Architecture: x86_64 (amd64)
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Hello,
I've written a program for fast online multiplication of real numbers, it
should produce for an infinite input-sequence an infinite output-sequence.
If I'm using Integer with related generic-list-functions, computation
stops at step 32777. Windows Task-Manager tells me: CPU-Usage 100% ,
Memory-Allocation increasing.
After a few minutes over 600MB memory is used by my program.
But if I'm using Int with Prelude-functions computation doesn't stop and
this is exactly what I'm expecting.
I tried to overwrite the type of the Prelude functions /length/, /take/
etc. to Integer, but the same problem at the same step occurs.
A friend of mine compiled my program under Linux and got this error
message:
32779 : 1 1 ---32776--> 0
32780 : 1 0 ---32777--> -1
Main: Ix{Integer}.index: Index (32766) out of range ((0,32765))
I don't know, whether this is a bug nor where the problem exactly is.
My Source-Code is avaialable under [www.romeinf04.de].
Best regards,
Roman
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1493>
GHC <http://www.haskell.org/ghc/>
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