-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Stephan T. Lavavej Sent: Monday, June 06, 2011 7:03 PM To: boost@lists.boost.org Subject: Re: [boost] MS VC10 std::numeric_limits<float>::max_digits10 is wrong for float
[Paul A. Bristow]
https://connect.microsoft.com/VisualStudio/feedback/details/668921/ std-numeric-limits-float-max-digits10-value-of-8-is-wrong-and-should-be-9
I trust this mistake will be corrected pronto - but I'm not holding my breath :-(
This bug is currently assigned to me. I'll need to verify it, but it looks like you're right. I can't promise anything, but I expect that we'll be able to fix it this month. However, the fix will be in VC11, and NOT released as a hotfix for VC10.
Assuming I am right, I think this means that we need yet another macro (Groans and Cries of Oh No, not another!) because BOOST_NO_NUMERIC_LIMITS_LOWEST not defined is no longer an indicator that max_digits10 is available (and its values correct). So do we need BOOST_NO_NUMERIC_LIMITS_MAX_DIGITS10 which should be defined by default, and only undefined for those libraries supporting C++0X std::numeric_limits with correct values like recent GCC - and others (but not <= VC10)? Views? Paul --- Paul A. Bristow, Prizet Farmhouse, Kendal LA8 8AB UK +44 1539 561830 07714330204 pbristow@hetp.u-net.com