[Haskell-cafe] Re: space leak with 'concat' ?

Felipe Lessa felipe.lessa at gmail.com
Thu Feb 12 05:52:26 EST 2009

2009/2/12 Peter Verswyvelen <bugfact at gmail.com>:
> It is funny that recently I had a strange problem in C# (I tried to write
> parts of Reactive in C#) where the garbage collector freed data that was
> actually needed by my program! I had to fix that by putting a local variable
> on the stack, passing the constructed data to a function did not work. I
> think .NET and Java the garbage collector traverses from data (the stack,
> globals, etc). If I understood Simon correctly, GHC traverse the code blocks
> instead, which feels correct as it would have fixed the bug I had in C#. So
> yet again an extreme difference between Haskell and .NET/Java even when it
> comes to garbage collection, Haskell wins :)

I'm curious, a GC that removes live data is a buggy GC. What was
holding the pointer to the data, if it was not the stack? Were you
with MS .NET or with Mono?


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