Re: [boost] [thread] warning in trunk

Subject: Re: [boost] [thread] warning in trunk
From: Jeff Flinn (Jeffrey.Flinn_at_[hidden])
Date: 2012-11-08 07:52:38

On 11/8/2012 2:46 AM, Vicente J. Botet Escriba wrote:
> Le 08/11/12 02:14, Nigel Pattinson a écrit :
>> Vicente Botet wrote
>>> Vicente Botet wrote
>>>> Gennadiy Rozenal wrote
>>>>> Hi,
>>>>>
>>>>> Can anyone clean this one:
>>>>>
>>>>> boost/thread/future.hpp(378) : warning C4913: user defined binary
>>>>> operator ','
>>>>> exists but no overload could convert all operands, default built-in
>>>>> binary
>>>>> operator ',' used
>>>> I don't understand why this warning appear, and I will understand it.
>>>> Anyway, could you create a ticket? Patches welcome.
>>>>
>>>> Best,
>>>> Vicente
>>> Sorry I meant I *want to* understand it.
>> We have also encountered this. We are using MSVC 2008 (9.0). The comma
>> operator in question is the one in boost/utility/result_of.hpp at line
>> 74 -
>> if I comment that line out everything compiles fine. It is just a
>> warning,
>> so rather than changing result_of.hpp our current workaround is just to
>> disable the warning around the inclusion of future.hpp .
>>
>> Hope this helps
>> Nigel
>>
>>
> Thanks Nigel.
>
> I don't why MSVC don't signal the concerned file/line.
>
> Gennadly, if you have not created yet the ticket, maybe you can create
> it associate to the Utility library ;-).

I've added Ticket #7663 to utility as you've asked summarizing this thread.

I'm getting "...\boost_1_52_0\boost/thread/future.hpp(293): warning 
C4913: user defined binary operator ',' exists but no overload could 
convert all operands, default built-in binary operator ',' used

with VC2012 and boost_1_52_0 release.

Thanks, Jeff