[Haskell-cafe] Lazy ST test code

Albert Y. C. Lai trebla at vex.net
Tue Jan 31 17:35:37 UTC 2017


OK yes, this is my message of explicit consent (in case it is needed).

On 2017-01-31 12:48 AM, David Feuer wrote:
> Thanks! I'll include these in my proposed additions to the GHC test
> suite, with your permission (releasing them under GHC's license terms).
>
> On Jan 30, 2017 2:28 PM, "Albert Y. C. Lai" <trebla at vex.net
> <mailto:trebla at vex.net>> wrote:
>
>     On 2017-01-29 02:22 AM, David Feuer wrote:
>
>         I've come up with what might be a fix for a major thread safety
>         bug in
>         lazy ST. Fixing it involved making multiple non-trivial changes to a
>         number of basic functions. Unfortunately, the GHC test suite barely
>         touches lazy ST. Does anyone out there have some code that uses
>         lazy ST
>         in interesting ways but that only relies on the libraries that
>         ship with
>         GHC?
>
>
>     I don't normally use lazy ST, but I have some toy examples at
>     http://lpaste.net/63925 . You may like the fact that I got
>     strictToLazyST involved.
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