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From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-09-27 10:48:43

At 01:22 AM 9/27/2001, Daryle Walker wrote:

>on 9/27/01 3:21 AM, Eric Ford at eford_at_[hidden] wrote:
>> The only substantive suggestion... If I wanted to tell integer.hpp
>> that I have one or more "big_int" types that can hold larger numbers,
>> I beleive I'd have to replace code a fair bit of code. It might be
>> nice to allow integer.hpp to be used with additional types provided by
>> the user. I haven't worked out the details, but I wonder if a
>> linked-list or tuple template parameter (with default template
>> parameter provided to function as is) could allow for this.
>You have to find the original designers, but I think <boost/integer.hpp>
>only meant for the built-in integer types.

That's correct. Note the 1999 copyright date. integer.hpp was done early
in the Boost effort when we had a much smaller number of members. I don't
remember any "big_int" discussion.

I also think that for many applications, the types found in
<boost/cstdint.hpp> are a better choice.

It would be nice if someone (or several people) with a strong numerics
background could write a "big picture" roadmap that fits a bunch of
numerical type together into a coherent plan. The ones in the C++
standard, the C standard, and Boost as it stands today, but also with slots
open for big integers, fixed point types, and other possibilities.


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