On 6/8/05, Cromwell Enage <sponage@yahoo.com> wrote:
--- Sérgio Vale e Pace wrote:
I can't say for everyone else, but I am very interested, but AFAIK there is a current development in this area on mpl, but I can be wrong,
No, you are correct, I just haven't gotten around to decimals yet.
but yor code looks promising. how well does it integrate with other mpl stuff?
I would like to know as well. I second the request to have it uploaded to <http://boost-sandbox.sourceforge.net/vault/>
On 6/8/05, Peder Holt wrote:
Is there any interest in a compile-time meta-version of double?
Most definitely.
Syntax:
//Definition typedef META_DOUBLE(3.1415926535897932384626433) pi; //Or META_DOUBLE(3.1415926535897932384626433) pi_;
Yes, very compact.
//Mathematical operations typedef math::meta::add<pi,pi>::type pi2;
You can specialize the MPL plus metafunction so that it works on your double metatype. Or I can do that for you :)
I have mpl-enabled double_ for plus and less, and uploaded this to the vault. I think I can handle the rest of the fundamental operators, but what I really need help on is: Is it possible to make compile-time versions of the basic mathematical functions? sin,cos,sqrt etc. If you have an idea of how to approach this (given the existence of the basic mpl meta-operators) I would really be interested. Regards, Peder
//Evaluation:
assert(META_DOUBLE_EVAL(pi2)== 3.1415926535897932384626433*2);
This implementation uses two ints to represent the decimals, and a short to represent the exponent.
Like I said, please upload to the sandbox vault so that we can examine the implementation.
Cromwell D. Enage
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