December 2013 - Boost - lists.preview.boost.org

[IdentityType] Const omission undocumented.
by Mostafa 03 Dec '13

03 Dec '13

#include <boost/utility/identity_type.hpp> #include <utility> int main() { BOOST_IDENTITY_TYPE(( std::pair<int,int> const )) x; // This compiles, so the const qualification in the // above macro parameter is ignored. x = std::make_pair(0,1); return 0; } The omission of const qualification in BOOST_IDENTITY_TYPE types is undocumented. This omission maybe deduced from the documented implementation, but, as noted, that is not part of the library api and is subject to change. I therefore propose that this behaviour be documented as part of the library's public api. Mostafa

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[swap] std::swap should be pulled in from <utility> in C++11
by Joaquin M Lopez Munoz 03 Dec '13

03 Dec '13

Hi, boost/utility/swap.hpp #includes <algorithm> to bring std::swap in, which is OK for C++03 but not so in C++11: std::swap has been moved to <utility> as explained in [diff.cpp03.library]. Should I create a ticket? Best regards, Joaquín M López Muñoz Telefónica Digital

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[git] Write (i.e. push) permission
by Beman Dawes 03 Dec '13

03 Dec '13

Boost library maintainers, please remember you need to apply for write permission for your library. See https://svn.boost.org/trac/boost/wiki/ModAdmin As of a couple of minutes ago, all pending requests for write permission have been completed. --Beman

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[git] unable to push
by Oliver Kowalke 03 Dec '13

03 Dec '13

Hi, I tried to push my commits to the remote branch 'develop' but I get an error: ERROR: Permission to boostorg/context.git denied to olk. fatal: The remote end hung up unexpectedly Is the boostorg repo closed for commits? so long, Oliver

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[git] Effect of "git checkout develop" on submodule?
by Beman Dawes 03 Dec '13

03 Dec '13

If I do this: git clone --recursive git@github.com:boostorg/boost.git modular-boost cd modular-boost/libs/math git checkout develop What commit of math develop branch should be checked out? The current head? The head at the time of the git clone? Some other head? --Beman

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[ANN] C++Now 2014: 5 Days to Submissions Deadline
by Boris Kolpackov 03 Dec '13

03 Dec '13

Hi, Only 5 days left before the submissions deadline for C++Now 2014! C++Now is a general C++ conference for C++ experts and enthusiasts. It is not specific to any library/framework or compiler vendor and has three tracks with presentations ranging from hands-on, practical tutorials to advanced C++ design and development techniques. For more information about C++Now, see the conference's website: http://cppnow.org/about/ Have you learned something interesting about C++ (e.g., a new technique possible in C++11)? Or maybe you have implemented something cool related to C++ (e.g., a C++ library)? If so, consider sharing it with other C++ enthusiasts by giving a talk at C++Now 2014. For more information on possible topics, formats, etc., see the call for submissions: http://cppnow.org/2013/10/21/2014-call-for-submissions/ Boris

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modular-boost comile error
by Vicente J. Botet Escriba 03 Dec '13

03 Dec '13

Hi Im getting this error when compiling several tool sets on the same command line. Best, Vicente ./b2 toolset=clang-3.2xl,darwin-4.8.1x -l 300 -j6 modularized layout build Building the Boost C++ Libraries. Performing configuration checks - symlinks supported : yes - hardlinks supported : yes - 32-bit : no - 64-bit : yes - arm : no - mips1 : no - power : no - sparc : no - x86 : yes - has_icu builds : no warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user-config.jam - zlib : yes - iconv (libc) : no - iconv (separate) : yes - icu : no - icu (lib64) : no - compiler-supports-ssse3 : yes - lockfree boost::atomic_flag : yes - compiler-supports-avx2 : yes - gcc visibility : yes - long double support : yes warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. - zlib : yes - 32-bit : no - 64-bit : yes - arm : no - mips1 : no - power : no - sparc : no - x86 : yes - has_icu builds : no - zlib : yes - iconv (libc) : no - iconv (separate) : yes - icu : no - icu (lib64) : no - compiler-supports-ssse3 : no - compiler-supports-avx2 : no - lockfree boost::atomic_flag : yes - gcc visibility : yes - long double support : yes - zlib : yes /Users/viboes/github/modular-boost/tools/build/v2/build/virtual-target.jam:1099: in virtual-target.register-actual-name from module virtual-target error: Duplicate name of actual target: <pstage/lib>libboost_atomic.dylib error: previous virtual target { clang-darwin%clang-darwin.link.dll-libboost_atomic.dylib.SHARED_LIB { clang-darwin%clang-darwin.compile.c++-lockpool.o.OBJ { lockpool.cpp.CPP } } } error: created from libs/atomic/build/boost_atomic error: another virtual target { darwin%darwin.link.dll-libboost_atomic.dylib.SHARED_LIB { darwin%darwin.compile.c++-lockpool.o.OBJ { lockpool.cpp.CPP } } } error: created from libs/atomic/build/boost_atomic error: added properties: <toolset-darwin:version>4.8.1x <toolset>darwin error: removed properties: <toolset-clang:platform>darwin <toolset-clang:version>3.2xl <toolset>clang /Users/viboes/github/modular-boost/tools/build/v2/build/virtual-target.jam:484: in actualize-no-scanner from module object(file-target)@16688 /Users/viboes/github/modular-boost/tools/build/v2/build/virtual-target.jam:134: in class(a)virtual-target.actualize from module object(file-target)@16688 /Users/viboes/github/modular-boost/tools/build/v2/build-system.jam:720: in load from module build-system /Users/viboes/github/modular-boost/tools/build/v2/kernel/modules.jam:289: in import from module modules /Users/viboes/github/modular-boost/tools/build/v2/kernel/bootstrap.jam:139: in boost-build from module /Users/viboes/github/modular-boost/boost-build.jam:17: in module scope from module

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[conversion] GitHub boostorg repos now open for regular use
by Beman Dawes 02 Dec '13

02 Dec '13

Please be cautious at first, and report any problems. It is probably a bit surer to follow the full clone instructions at https://svn.boost.org/trac/boost/wiki/TryModBoost rather than trying to make use of a previous clone. Also note that those instructions have been corrected several times, the most recent correction just a minute ago. We will be setting up write permissions, but that may take a day or so. Thanks, --Beman

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[conversion] Progress Report
by Beman Dawes 02 Dec '13

02 Dec '13

We are very close to being able to go live with boostorg at GitHub. * Following the instructions at https://svn.boost.org/trac/boost/wiki/TryModBoost, the "master" branch seems ready to go. * A couple of libraries on the "develop" branch may still have end-of-line issues. If so, those should be resolved first thing in the morning. So please be patient one more day, and then we should be able to get to work using git and modular boost. --Beman

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circular buffer patch
by Serge A. 02 Dec '13

02 Dec '13

It appears that the circular_buffer no longer has a maintainer. I have a patch that fixes a problem introduced in the latest versions of the circular buffer that it can not correctly work with a custom memory allocator. The patch is provided here: https://svn.boost.org/trac/boost/ticket/9334 The former maintainer suggested to submit a request to this list, so that the patch is included in the daily build and the next release. Thanks! Serge

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