-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Jürgen Hunold Sent: Saturday, June 16, 2012 11:49 AM To: boost@lists.boost.org Subject: Re: [boost] Is there a macro to test ifstd::numerc_limits<>::max_digits10 is supported by a platform?
Hi Paul,
On Thursday, 14. June 2012 13:26:20 Paul A. Bristow wrote:
-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of John Maddock
Try BOOST_NO_NUMERIC_LIMITS_LOWEST as a proxy?
OK, but I'm on holiday for a while so I'll wait until I get back before I create more trouble ;-)
Anyone trying multiprecision and wanting this feature can patch their \boost-trunk\boost\test\tools\impl.hpp locally.
I've tested BOOST_NO_NUMERIC_LIMITS_LOWEST with gcc-4.6.3 on Linux and this seems to work.
Patch attached.
Thanks - looks good, but I think it might be wise to test how the macro works on a specific test not actually using Boost.Test before causing a nuisance - as I have discovered to several peoples cost :-( The trouble is that Boost.Test is used by all platforms. So it will be disruptive to just patch like this and hope for the best.
I'd like to commit it and check the test results for breaks.
Or is a special macro needed here?
Well perhaps but hopefully not - only a check on all platforms in the testing regime will make sure. I'll check this out, perhaps using a temporary program attached to Boost.Math testing schedule and then see what platforms work. There may still be obscure platforms that are not routinely tested that don't work? Paul --- Paul A. Bristow, Prizet Farmhouse, Kendal LA8 8AB UK +44 1539 561830 07714330204 pbristow@hetp.u-net.com