[Haskell-cafe] return with mutable object

[Gregory Collins]

On Wed, Jun 18, 2014 at 2:53 AM, Baojun Wang <wangbj at gmail.com> wrote:

> To make my question more clearer, will test1/test2 have noticeable
> performance difference?


No. The copy is by reference.

-- 
Gregory Collins <greg at gregorycollins.net>
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