Re: [vwrap] Python integer types, again (was: The <embed> tag... is the group still interested in LLSD or DSD?)

Meadhbh Hamrick <ohmeadhbh@gmail.com> Sat, 07 May 2011 17:02 UTC

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From: Meadhbh Hamrick <ohmeadhbh@gmail.com>
Date: Sat, 7 May 2011 09:57:02 -0700
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To: Boroondas Gupte <sllists@boroon.dasgupta.ch>
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Subject: Re: [vwrap] Python integer types, again (was: The <embed> tag... is the group still interested in LLSD or DSD?)
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well. yes. for modern python versions. i think 2.2 was the first
version to use longs instead of ints.

--
meadhbh hamrick * it's pronounced "maeve"
@OhMeadhbh * http://meadhbh.org/ * OhMeadhbh@gmail.com



On Sat, May 7, 2011 at 8:49 AM, Boroondas Gupte
<sllists@boroon.dasgupta.ch> wrote:
> On 05/07/2011 05:19 PM, Meadhbh Hamrick wrote:
>
> Josh, it's even worse than that.
>
> Python inherits the integer size from the compiler that generated it.
> So, if you compile python on a system with a 16 bit int (which used to
> be pretty common in some embedded systems) you get a version of python
> that uses 16 bit ints.
>
> Fortunately, it's not as bad as that. While it's true that python inherits
> the integer size from the compiler, it doesn't use C's int to implements
> python ints, but C's long and thus can guarantee a precision of at least 32
> bits. Also, due to seamless conversion (see my other post) to python's
> (unlimited precision) long, the actual size of python's int (or the
> implementation dependence of that size) can probably be ignored most of the
> time, except maybe for performance considerations.
>
> Cheers,
> Boroondas
>
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