Re: [boost] [thread] Missing #include

From: Beman Dawes (bdawes_at_[hidden])
Date: 2007-11-03 17:49:59

Peter Dimov wrote:
>> Peter Dimov wrote:
>>> Roland Schwarz:
>>>
>>>> Andrey Semashev wrote:
>>>>> I also noticed lots of warnings "unused variable 'res'" and alikes 
>>>>> while
>>>>> compiling my projects with GCC 4.2.1 on OpenSUSE.
>>>> I already noticed this, and asked Peter Dimov to provide a BOOST_VERIFY
>>>> macro to get rid of them.
>>>>
>>>> I surely could do with a macro that is private to the thread library,
>>>> but since I think the issue is a more general one, I'd prefer to wait
>>>> until Peter supplies a global one.
>>> I'll add BOOST_VERIFY if Beman agrees that it should be supplied as part 
>>> of
>>> 1.35.
>> I missed the discussion of exactly what BOOST_VERIFY does, but since
>> it's a new macro I assume it won't break any existing code. If that's
>> correct, go ahead for 1.35.
>>
>> --Beman
> 
> BOOST_VERIFY added to trunk. It's the same as BOOST_ASSERT, but always 
> evaluates its argument. This helps to suppress warnings for unused variables 
> and can also be used if the asserted expression has desirable side effects. 

Nice!

I suggest adding an additional sentence to the docs: "BOOST_VERIFY is 
useful for suppressing warnings about unused variables or when the 
asserted expression has desirable side effects."

--Beman