Re: [boost] [type_traits] Big changes in develop

Subject: Re: [boost] [type_traits] Big changes in develop
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2015-05-27 02:11:06

Le 26/05/15 23:46, Aparna Kumta a écrit :
> On 05/22/15 05:22, John Maddock wrote:
>> A heads up that the "Version2" rewrite of type traits is now in develop.
>>
>> There's still lots to do - more PR's will happen over the coming 
>> weeks to remove obsoleted code from other libraries (and quash the 
>> warnings that they'd otherwise generate).  The docs also need a major 
>> update.
>>
>> In the mean time please do shout loudly if there are any regressions 
>> caused by this change.
> I am seeing several test failures for Oracle Solaris Studio runs on 
> develop branch as follows:
> http://www.boost.org/development/tests/develop/developer/output/oracle-sparc-S2-stlport4-boost-bin-v2-libs-type_traits-test-common_type_2_test-test-sun-stlport4-release-threading-multi.html 
>
>
> "CC" -compat=5 -library=stlport4 -xO4 -mt -erroff=%none -errwarn -m32 
> -KPIC -DBOOST_ALL_NO_LIB=1 -DNDEBUG -I".." 
> -I"../libs/type_traits/test/libs/tt2/light/include" -c -o 
> "/export/home/sstrunk-tester/boost_regression/boost_sparc-S2_stlport4/results/boost/bin.v2/libs/type_traits/test/common_type_2_test.test/sun-stlport4/release/threading-multi/common_type_2_test.o" 
> "../libs/type_traits/test/common_type_2_test.cpp"
>
> "../boost/type_traits/common_type.hpp", line 116: Error: 
> detail_type_traits_common_type is not defined.
> "../boost/type_traits/common_type.hpp", line 116: Error: A declaration 
> does not specify a tag or an identifier.
> "../boost/type_traits/common_type.hpp", line 116: Error: Use ";" to 
> terminate declarations.
> "../boost/type_traits/common_type.hpp", line 116: Error: "}" expected 
> instead of"<".
>
Thanks for the report. I don't see where the error could be. Do you mind 
to provide the result of the preprocessor on a simple example?
> In boost/type_traits/common_type.hpp , lines #15- #17,
> 15 #if defined(__SUNPRO_CC) && 
> !defined(BOOST_COMMON_TYPE_DONT_USE_TYPEOF)
> 16 #  define BOOST_COMMON_TYPE_DONT_USE_TYPEOF
> 17 #endif
>
> However, __typeof__ is supported and this file needs to be modified to 
> reflect that.
>
>

We will need a patch that works for the versions of SunPro providing 
__typeof__. But shouldn't this be part of Boost.Typeof?
Could you provide such a patch?

Vicente