Re: [Boost-users] [function] vs2005 warning

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-10-12 15:56:00

Gottlob Frege wrote:
> On 10/10/06, Peter Dimov <pdimov_at_[hidden]> wrote:
>>
>> Gottlob Frege wrote:
>>> I'd like to chime in to increase the strength of the voice - I also
>>> get lots of warnings from boost which I'd like to remove, in order
>>> to see the forest for the trees.  In my case, it is typically boost
>>> placeholders - _1, _2, _3,... and the warning is about unused
>>> globals.
>>>
>>> Is there a way we can get fixes for these and reduce the warnings
>>> coming from boost?
>>
>> Posting specific details will be most helpful.
>
>
> including boost/bind/placeholders.hpp  into a cpp file, under Xcode
> 2.3 (gcc 4.0) gives you:
>
> warning: '<unnamed>::_2' defined but not used
> warning: '<unnamed>::_3' defined but not used
> ...
> all the way up to _9  (in my case _1 was being used).

g++ 3.x gave this warning for statics but not for unnamed namespace globals, 
it appears that they fixed it in 4. :-)

You can try applying:

http://boost.cvs.sourceforge.net/boost/boost/boost/bind/placeholders.hpp?r1=1.13&r2=1.14

This is a fix for a problem with g++ precompiled headers, but it should take 
care of the warning as well.