[Haskell-cafe] Is it safe to use unsafePerformIO here?

Cristiano Paris frodo at theshire.org
Tue Sep 15 16:35:58 EDT 2009

On Tue, Sep 15, 2009 at 10:29 PM, Daniel Fischer
<daniel.is.fischer at web.de> wrote:
> ...
> It evaluates the String far enough to know whether it's "" or (_:_), that is, to weak head
> normal form. It doesn't look at any character, but it forces at least one character to be
> read from the file.

Yep, the head. That explains why only the first 1024 bytes are read
and displayed...


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