Re: [boost] MS VC10 std::numeric_limits<float>::max_digits10 iswrong for float

Subject: Re: [boost] MS VC10 std::numeric_limits<float>::max_digits10 iswrong for float
From: John Maddock (boost.regex_at_[hidden])
Date: 2011-06-08 12:04:46

> 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?

Sigh.... I guess so.  Care to submit a patch?

John.