Re: [boost] [C++0x][config] Taking advantage of C++0x features as they become available

From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2008-04-04 14:53:28

Doug Gregor wrote:
> On Apr 4, 2008, at 12:35 PM, Beman Dawes wrote:
> 
>> In another thread, Doug Gregor wrote:
>>> The other issue is that it would be great to test gcc-4.3 in C++0x
>>> mode (-std=gnu++0x) as well as C++98 mode. Then we can start taking
>>> advantage of some of the 0x features.
>> Yes, and some other compilers are also starting to add C++0x features.
>>
>> Has there been any discussion as to how Boost.Config is going to  
>> report
>> availability or not of C++0x features? That would seem to be the first
>> step in what promises to be a long, winding, but *very* interesting  
>> and
>> productive path.
> 
> I started this discussion a while ago:
> 
> 	http://lists.boost.org/Archives/boost/2006/11/113534.php
> 
> Boost 1.35.0 already contains some macros for C++0x features available  
> now, e.g., BOOST_HAS_STATIC_ASSERT (used by boost/static_assert.hpp),  
> BOOST_HAS_VARIADIC_TMPL, BOOST_HAS_RVALUE_REFS, and  
> BOOST_HAS_DECLTYPE. They have their own section of the Boost.Config  
> documentation ("Macros that describe C++0x Features"), and I believe  
> that accurately reflect the capabilities of released compilers.

I thought I'd mention... Along with config macro defs I started 
extracting all the Config rewrite macros 
<http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?BoostConfig> 
into a separate library 
<http://svn.boost.org/trac/boost/browser/sandbox/predef>.

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