[Haskell-cafe] Stack space overflow in HaskellNet

[Ivan Lazar Miljenovic]

On 27 July 2011 17:42, Paul R <paul.r.ml at gmail.com> wrote:
>>>> This should be mapM_ and 'ghc -Wall' spots this problem since 6.12.
>
>>> The compiler (7.04) doesn't tell me anything about it.
>
> Henning> It seems that it is no longer part of -Wall.
>
> Indeed, that's not part of -Wall.
>
>  http://www.haskell.org/ghc/docs/7.0.4/html/users_guide/options-sanity.html
>
> Am I the only one who assumed so far that Wall turned on all existing
> warnings ?
>
> From the doc :
>
> -Wall: Turns on all warning options that indicate potentially suspicious
>       code. The warnings that are not enabled by -Wall
>       are -fwarn-tabs, -fwarn-incomplete-record-updates, -fwarn-monomorphism-restriction, -fwarn-unused-do-bind,
>       and -fwarn-implicit-prelude.
>
> -w:    Turns off all warnings, including the standard ones and those
>       that -Wall doesn't enable.
>
>
> If there were no backward compatibility issues, I'd prefer to just
> see -w and -Wall swaped. -w would mean "We let the GHC team decide what
> subset of warnings they really want us to observe", and -Wall would mean
> "We really want them all".

Ummm, going by what you quoted, -w _disables_ warnings, which isn't at
all like you say you want it to be! ;-)

-- 
Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com
IvanMiljenovic.wordpress.com