Hi Eric,
"Eric Lemings" wrote in message
news:D730FF7CEDDCA64483F9E99D999A158B41FC86@qxvcexch01.ad.quovadx.com...
Hi,
I'm looking for a metafunction like this:
template <
class N1, class D1,
class N2, class D2 >
struct times {
typedef ... numer;
typedef ... denom;
};
N1, D1, N2, and D2 are all MPL integral constant wrappers. The numer
member of the times metafunction is the numerator N of the ratio
(preferably in reduced form) produced by (N1/D1) * (N2/D2) = (N/D).
Likewise, the denom member is the denominator D of the ratio produced
from this equation.
FWIW Quan http://sourceforge.net/projects/quan has a rational type, you could
use as a basis. there is also the mpl_math package in the boost vault, in
Template Metaprogramming section I think
regards
Andy little
