Re: [boost] [type_traits] is_list_constructible regression failures

Subject: Re: [boost] [type_traits] is_list_constructible regression failures
From: John Maddock (jz.maddock_at_[hidden])
Date: 2018-03-12 19:16:42

On 12/03/2018 19:07, Lorenzo Caminiti via Boost wrote:
> Hello all,
>
> I noticed the following failure in Boost.TypeTraits regression tests
> on GCC 4.6 C++11. Any idea why this is failing?

There's something different about that tester - there are several 
gcc-4.6 test runners in the matrix and they're all passing 
is_list_constructible_test bar that one.  What/why the difference is 
there I have no idea :(

John.

>
> http://www.boost.org/development/tests/master/developer/type_traits.html
>
> Test output: igaztanaga-master-gcc-4.6c++11 - type_traits -
> cxx14_aliases_test / gcc-4.6c+
> Rev cb62bbf20f4a0000ee6f16835b0c2dc92edea8cd / Sun, 11 Mar 2018 03:16:04 +0000
> Compile [2018-03-11 10:15:18 UTC]: fail
>
>      "C:/Programs/mingw-builds/x32-4.6.4-posix-dwarf-rev0/mingw32/bin/gcc-4.6.bat"
>    -pipe -fmax-errors=1 -std=c++0x -m32 -O0 -fno-inline -Wall -pedantic
> -Werror -march=i686 -Wextra -Wno-bool-operation
> -Wno-int-in-bool-context -Wno-uninitialized -DBOOST_ALL_NO_LIB=1
> -I".." -I"..\libs\type_traits\test\libs\tt2\light\include" -c -o
> "c:\boost\master\results\boost\bin.v2\libs\type_traits\test\cxx14_aliases_test.test\gcc-4.6c+\dbg\dbg-symbl-off\cxx14_aliases_test.o"
> "..\libs\type_traits\test\cxx14_aliases_test.cpp"
>
> In file included from ../boost/type_traits.hpp:110:0,
>                   from ..\libs\type_traits\test\cxx14_aliases_test.cpp:10:
> ../boost/type_traits/is_list_constructible.hpp:36:61: error: expected
> class-name before 'decltype'
> compilation terminated due to -fmax-errors=1.
>
> I am asking because a couple of Boost.Contract tests that #include
> <boost/type_traits.hpp> fail with the same Boost.TypeTraits error on
> this compiler.
>
> Thanks.
> --Lorenzo
>
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