[Haskell-cafe] Help debugging code broken after upgrading debian to
GHC 6.12: "invalid argument"
brandon.m.simmons at gmail.com
Sat May 15 09:18:28 EDT 2010
>On May 14, 2010, at 20:24 , Brandon Simmons wrote:
>> The other baffling thing is this: if the debugging line 426 is
>> uncommented, then even running:
>> $> runghc Befunge.hs --quiet mycology.b98
>> ...will fail. But all we're doing is a call to `putStr`! Why would
>> that trigger an error?! Maybe there was a bug in my code that was
> GHC 6.12's runtime handles input and output encoding, instead of
> simply truncating Chars; my guess is it's locale-related. And sure
> enough, I see several non-ASCII characters in mycology.b98 which are
> likely to do the wrong thing if the runtime doesn't know which
> character set to use.
Thanks, that makes a lot of sense. Is there something I can read to
enlighten myself as to how I would go about getting my program to be
liberal about non-ascii characters in a file?
Also, I noticed yesterday that
$> cabal list --installed
shows the 'old-locale' package:
Synopsis: locale library
Latest version available: 126.96.36.199
Latest version installed: 188.8.131.52
I'm not sure if that could be part of the issue, or whether that is normal.
> brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
> system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
> electrical and computer engineering, carnegie mellon university KF8NH
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