Gennaro Prota wrote:
On Thu, 19 Feb 2004 15:55:08 -0000, "Paul A Bristow" <boost@hetp.u-net.com> wrote:
Daniel Frey seems close to a portable solution, but <...>
Daniel, could you please summarize your problem? Actually I saw a sketch implementation of your idea a while ago and I quite liked it. I know there were problems with some compilers though and that there were doubts as to whether the code was standard conforming or not, but I can't recall the details. I would search the list archives but it's likely that the old discussions refer to a version of the code that you have changed later. Please, bring me up to date 8-)
OK, here we go: - The latest version can be found in the files section <http://groups.yahoo.com/group/boost/files/MathConstants/>. Have a look at _m2_v2 and also at the examples for the unit libraries. They are probably good to show why a simple approach using #define is doomed to fail in the light of generic programming :) - I don't have enough time (as usual) - No documentation yet (will come next) - The current version works on GCC3+ and Intel7+, but there were some problem with the VC7.1, which gave an internal compiler error. As I don't have the VC7.1 (not even Windows), I need help here. The code itself should be standard conforming, though, but I admit it's driving compilers to the edge - and further ;) OTOH, I don't see the point in providing bad interfaces to support old, non-conforming compilers - YMMV. - typeof would be a great help, otherwise I have to switch back to some other system to deduce the operator's return types. Probably like bind/lambda do. I think that there is a need for such a general component which should IMHO use typeof when available and manually configuration from the user otherwise. Due to the mentioned lack of time, I haven't done anything useful in that direction yet. IIUC, FC++ would also benefit from such a component, so I think we should really attack this topic soon. Anyone? :o) HTH Regards, Daniel -- Daniel Frey aixigo AG - financial solutions & technology Schloß-Rahe-Straße 15, 52072 Aachen, Germany fon: +49 (0)241 936737-42, fax: +49 (0)241 936737-99 eMail: daniel.frey@aixigo.de, web: http://www.aixigo.de