Re: [boost] Integral type with no upper limit?

Subject: Re: [boost] Integral type with no upper limit?
From: Beman Dawes (bdawes_at_[hidden])
Date: 2009-05-28 07:57:06

On Wed, May 27, 2009 at 3:18 AM, Barend Gehrels <barend_at_[hidden]> wrote:

>
>
>
>> Personally, I think Boost would be best served providing some sort of
>> expression template wrapper into which different arbitrary-precision
>> numbers could be plugged.
>>
>>
> We (Bruno and me) are creating exactly this thing. It will be finished
> soon. We will use it in our other library, GGL, but we develop it
> separately.
>
>> That would mean far less work to get something usable, as it could use
>> the GMP implementation initially.
>>
> We do GMP,  CLN and IEEE (so float/double/long double). So the code using
> the library will be independant of which numeric type is used, and can use
> it also for standard numeric types transparently.

FWIW, the C++ standards committee has also been wanting something like this
for a long time. There have been several proposals, but none were anywhere
near good enough. So, yes, please do consider bringing it forward to Boost.

--Beman