so confused...
I have asked one of my friends to compile this code. And he also got an fail

It seems this bug only occurs on a 32-bit version ghc

update:
my friends said he changes the decode line into a ugly way:
> let x = decode $(C.pack. C.unpack) au :: Maybe AuctionInfo
then he got an ok

but i did so, also fail...

Subject: Re: [Haskell-cafe] a bug of 32bit ghc on mac ?
From: hutch-lists@recursive.ca
Date: Wed, 1 May 2013 05:43:46 -0400
CC: haskell-cafe@haskell.org
To: sray@live.com

I compiled and ran it a few hundred times in a script with no failures. I've got the same version of GHC on OS X 10.8.3.

BTW, it's not just Yesod that has that bug you mentioned in the 64-bit version.

Cheers,

Bob

On 2013-04-30, at 11:37 PM, Sray <sray@live.com> wrote:

hi all

it seems i have met some bug on a MAC 32bit GHC version 7.4.2

to make long stroy short, my code is about parse a json file using aeson
here is my code
http://pastebin.com/0VcVhdvX

and here is test data
http://pastebin.com/PvtSvst5

and test steps
save the code , and name it a.hs (or what you want)
save the test data ,name it a.json (do not change its name)
$ ghc a.hs -o a
$ ./a

what i get from the output is "fail"
and when i run the command below for a few times
$ runghc a.hs
i even got some ok and some fail mixed together

but i copy the code and compile it on my linux, everything goes fine, the output is "OK"
i have run "uninstall-hs" and install a 64bit ghc, also goes fine

i delete one line randomly chosen from my test data , got an ok
roll back ,delete another line, also an ok...

I just want to make sure is this my bug or a bug of ghc

p.s. the reason using 32bit ghc is yesod, which has met another bug on 64bit mac ghc :(

thanks
sray

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