[pypy-dev] Arrays in rpython

Maciej Fijalkowski fijall at gmail.com
Tue Jun 7 08:40:49 CEST 2011

On Mon, Jun 6, 2011 at 8:54 PM, Timothy Baldridge <tbaldridge at gmail.com> wrote:
>> In case you don't already know: in Python (and RPython), lists are
>> implemented as
>> resizeable arrays, i.e. they look more like a C++ std::vector and not
>> a std::list.
>> This said, IIRC RPython has special code for fixed-size lists.
>> I think you just have to avoid all resizing functions.
>> This means that the list must be created with statements like
>>    array_of_ints = [0] * 32
>>    array_of_objects = [None] * 32
> Excellent! Exactly what I was looking for. Thanks.
> Timothy

There is also pypy.rlib.debug.make_sure_not_resized which would make
annotation explode if you by chance resize this list.

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