[windows] ex_lambda_future fails on msvc-11.0

[viboes]

Test output: teeks99-03d-win2008-64on64 - thread - ex_lambda_future / msvc-11.0
Rev 86366 / Sun, 20 Oct 2013 02:42:23 +0000
Compile [2013-10-20 10:51:38 UTC]: fail



    call "C:\Program Files (x86)\microsoft visual studio 11.0\vc\vcvarsall.bat" x86 >nul
cl /Zm800 -nologo @"C:\local\teeks99-03\d\results\boost\bin.v2\libs\thread\test\ex_lambda_future.test\msvc-11.0\debug\threading-multi\lambda_future.obj.rsp" 

lambda_future.cpp
..\libs\thread\test\..\example\lambda_future.cpp(36) : error C2248: 'boost::future<R>::future' : cannot access private member declared in class 'boost::future<R>'
        with
        [
            R=int
        ]
        C:\local\teeks99-03\d\boost\boost/thread/future.hpp(1522) : see declaration of 'boost::future<R>::future'
        with
        [
            R=int
        ]
        C:\local\teeks99-03\d\boost\boost/thread/future.hpp(1522) : see declaration of 'boost::future<R>::future'
        with
        [
            R=int
        ]
        C:\local\teeks99-03\d\boost\boost/thread/future.hpp(1522) : see declaration of 'boost::future<R>::future'
        with
        [
            R=int
        ]
            

[viboes]

Same error for

 Test output: DebSidC++ - thread - ex_lambda_future / gcc-4.8.2~11

[viboes]

This change-set ​https://github.com/boostorg/thread/commit/cb845f19e4a975fc95e8b10c096280085d24eb03 improves the situation but restrict the use of the variadic versions. It works for all the compiler for which BOOST_NO_CXX11_DECLTYPE_N3276 is defined.

[Niall Douglas]

It's tough for me to test MSVC 11.0. Also, right now trunk develop is failing all over the place on Windows due to the half completed sync unit test merge. I'll return to this issue in a week or so.

[viboes]

Sorry, fixed.

[viboes]

This is a compiler bug. We don't have a workaround.