| -----Original Message----- | From: boost-bounces@lists.boost.org | [mailto:boost-bounces@lists.boost.org] On Behalf Of Deane Yang | Sent: 08 May 2005 05:09 | To: boost@lists.boost.org | Subject: [boost] Re: Math constants - updated. The C-style macros are only provided so that they can be used by anyone unfortunate to be stuck with C, and by anyone wanting to preprocess them somehow. It didn't cost much to generate them, if one is generating the others. | > The current state also lacks extensibility. It is not | acceptable to rely | > on an external code generator. We have a great preprocessor | library for | > jobs like this one. It is desirable to have user-defined | constants for | > arbitrary types, which can be defined from within user code | on-the-fly, | > using a self-contained code generator. | > | | This sounds like a pretty cool idea to me. Well cool indeed - provided the preprocessor can do 50 decimal digit accuracy floating point ;-) So far macros seem to be struggling with ANY floating point calculations! Paul Paul A Bristow Prizet Farmhouse, Kendal, Cumbria UK LA8 8AB +44 1539 561830 +44 7714 330204 mailto: pbristow@hetp.u-net.com