Re: [boost] [EXTERNAL] Re: [boost-mpl] -Wall -Werror issue

Subject: Re: [boost] [EXTERNAL] Re: [boost-mpl] -Wall -Werror issue
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2012-11-26 19:47:27

On 27/11/12 01:38, Belcourt, Kenneth wrote:
>
> On Nov 26, 2012, at 5:22 PM, Mathias Gaunard wrote:
>
>> On 27/11/12 00:55, Belcourt, Kenneth wrote:
>>> Hi,
>>>
>>> This code generates sign / unsigned compare warning with -Wall, could this please be cleaned up?
>>>
>>>      enum {
>>>          n =
>>> # if defined(__EDG_VERSION__)
>>>             aux::dependent_unsigned<T>::value > -1
>>> # else
>>>             sizeof(T) > -1
>>> # endif
>>>          };
>>>
>>> It appears that sizeof(T) > -1 yields zero for EDG, Gcc and Clang so perhaps this is just older (unused) code?
>>
>> The code in question is in print.hpp
>> Its purpose is to emit warnings.
>
> Good to know it's successfully achieved it's objective.  Our project need to compile -Wall -Werror and we want to use Boost, can this be done without local modifications to the Boost installation?

print is a debugging tool, used to print messages at compile-time using 
warnings.
If you don't want to emit such warnings, just don't use it.