Re: [boost] [Config] Macro for C++0x range-based for

Subject: Re: [boost] [Config] Macro for C++0x range-based for
From: John Maddock (boost.regex_at_[hidden])
Date: 2010-12-17 06:55:16

>> C++0x range-based for is available on GCC 4.6 (Pre-release).
>> There is no BOOST_NO_RANGE_BASED_FOR macro,
>> so I made a patch against trunk and made a test case. Please see
>> attached files.
>> Is it reasonable to add this macro?
> I don't think there's really a point, unless you want Boost's users to use 
> the config macros. Range-based for is a convenience functionality, not an 
> enabling functionality. In other words, if you can't use it all the time, 
> but have to write the long form anyway, what's the point in using it?

That's a problem, writing code both the "old" way and the "new" way (which 
is what boost authors would have to do, complete with all the #ifdef logic) 
is probably worse than just using the old style and be done with it.

Just my 2c, John.