[Haskell-cafe] Non-deterministic behaviour of aeson's parser

[Clark Gaebel]

CNR with aeson 0.6.1.0 and ghc 7.6.3.

pkg-list output can be found at http://pastebin.com/Zuuujcaz

On Saturday, May 18, 2013, Niklas Hambüchen wrote:

> Can't reproduce:
>
> % ./aeson | sort | uniq -c
>    2000 Right ()
> % ./aeson | sort | uniq -c
>    2000 Right ()
> % ./aeson | sort | uniq -c
>    2000 Right ()
> % ./aeson | sort | uniq -c
>    2000 Right ()
> % ./aeson | sort | uniq -c
>    2000 Right ()
>
> Time 100:
>
> % ./aeson | sort | uniq -c
>  200000 Right ()
>
>
> My packages:
>
> % ghc-pkg list
> /var/lib/ghc/package.conf.d
>    Cabal-1.16.0
>    array-0.4.0.1
>    base-4.6.0.1
>    bin-package-db-0.0.0.0
>    binary-0.5.1.1
>    bytestring-0.10.0.2
>    containers-0.5.0.0
>    deepseq-1.3.0.1
>    directory-1.2.0.1
>    filepath-1.3.0.1
>    ghc-7.6.2
>    ghc-prim-0.3.0.0
>    haskell2010-1.1.1.0
>    haskell98-2.0.0.2
>    hoopl-3.9.0.0
>    hpc-0.6.0.0
>    integer-gmp-0.5.0.0
>    old-locale-1.0.0.5
>    old-time-1.1.0.1
>    pretty-1.1.1.0
>    process-1.1.0.2
>    rts-1.0
>    template-haskell-2.8.0.0
>    time-1.4.0.1
>    unix-2.6.0.1
> /home/niklas/.ghc/x86_64-linux-7.6.2/package.conf.d
>    HTTP-4000.2.8
>    HUnit-1.2.5.2
>    QuickCheck-2.6
>    Xauth-0.1
>    aeson-0.6.1.0
>    ansi-terminal-0.6
>    attoparsec-0.10.4.0
>    attoparsec-binary-0.2
>    base-unicode-symbols-0.2.2.4
>    blaze-builder-0.3.1.1
>    byteorder-1.0.4
>    cipher-aes-0.1.8
>    convertible-1.0.11.1
>    cpphs-1.16
>    dlist-0.5
>    ghc-paths-0.1.0.9
>    ghc-syb-utils-0.2.1.1
>    hashable-1.2.0.6
>    haskell-lexer-1.0
>    haskell-src-exts-1.13.5
>    hidapi-1.0
>    hlint-1.8.44
>    hscolour-1.20.3
>    hspec-1.5.4
>    hspec-expectations-0.3.2
>    io-choice-0.0.3
>    lifted-base-0.2.0.4
>    monad-control-0.3.2.1
>    mtl-2.1.2
>    network-2.4.1.2
>    parsec-3.1.3
>    pretty-show-1.5
>    primitive-0.5.0.1
>    quickcheck-io-0.1.0
>    random-1.0.1.1
>    robot-1.0.1.1
>    robot-1.1
>    setenv-0.1.0
>    stm-2.4.2
>    storable-record-0.0.2.5
>    syb-0.4.0
>    text-0.11.3.0
>    transformers-0.3.0.0
>    transformers-base-0.4.1
>    uniplate-1.6.10
>    unordered-containers-0.2.3.1
>    utility-ht-0.0.9
>    vector-0.10.0.1
>    vector-th-unbox-0.2.0.1
>    xhb-0.5.2012.11.23
>    zlib-0.5.4.1
>
>
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