[Haskell-cafe] Pattern matching does not work like this?

[minh thu]

2009/7/15 minh thu <noteed at gmail.com>:
> 2009/7/15 Magicloud Magiclouds <magicloud.magiclouds at gmail.com>:
>> Hi,
>>  I do not notice this before. "fun ([0, 1] ++ xs) = .." in my code
>> could not be compiled, parse error.
>
> ++ is a function; you can't pattern-match on that.

But here you can match against (0:1:xs).