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

[variant] Applying a portion of fixes
by Antony Polukhin 12 Jul '13

12 Jul '13

Hi, I'd like to fix this issue: https://svn.boost.org/trac/boost/ticket/8772 Apply patch for this issue: https://svn.boost.org/trac/boost/ticket/7911 And take care of this: https://svn.boost.org/trac/boost/ticket/8717 Patches and ideas for fixes are described in tickets. If there'll be no objections till next weekend I'll commit the fixes. -- Best regards, Antony Polukhin

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Boost 1.54.0 released!
by Marshall Clow 11 Jul '13

11 Jul '13

Release 1.54.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release contains five new libraries and numerous enhancements and bug fixes for existing libraries. New Libraries: Log: Logging library, from Andrey Semashev. TTI: Type Traits Introspection library, from Edward Diener. Type Erasure: Runtime polymorphism based on concepts. For details, including download links, see http://www.boost.org/users/news/version_1.54.0 You can also download directly from SourceForge: http://sourceforge.net/projects/boost/files/boost/1.54.0/ To install this release on your system, see http://www.boost.org/doc/libs/release/more/getting_started/index.html Thanks, --The Boost release team Beman Dawes Daniel James Eric Niebler Marshall Clow Rene Rivera Vladimir Prus

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Regression tests report page stuck
by Joaquin M Lopez Munoz 11 Jul '13

11 Jul '13

Hi, the trunk testing bot http://www.boost.org/development/tests/trunk/developer/summary.html seems to be stuck since ~1.5 days ago. Thank you, Joaquín M López Muñoz Telefónica Digital

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[gil] Portability of new code issue.
by Harg Tholan 11 Jul '13

11 Jul '13

Hi all, Christian has been working on some new features for GIL, such code works fine in Windows 7 with VS11, but it will fail to compile with GCC in Debian Wheezy. I've been trying to figure out why is this failing and possible workarounds with no success. For those with time wanting to help: 1. You will need boost-trunk. 2. I have attached the "bleeding edge" code (a pair of .hpp) as well as a test case. 3. Compile: g++ subsampled_test.cpp -o ss -lboost_unittesting_framework My Compiler Version: g++ (Debian 4.7.2-5) 4.7.2 Errors: yuv_image.hpp:234:38: error: expected primary-expression before ‘,’ token subsampled_test.cpp:28:41: required from here ../yuv_image.hpp:234:5: error: ISO C++ forbids comparison between pointer and integer Note: I have attached the code here because I had to fix some template code, adding/removing 'tyepename', as well as prevention of template parameter shadowing. As you already know, Microsoft's compiler is very 'flexible', allowing non-standard code to compile. Regards, Juan.

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[filesystem] Please take care of #8706
by Antony Polukhin 10 Jul '13

10 Jul '13

Hi, There is a ticket https://svn.boost.org/trac/boost/ticket/8706 and patch in it that fixes compilation of Boost.Filesystem under Android NDK. Tested patch under latest NDK and it works well. Fix is required to start regression tests for droid platform. -- Best regards, Antony Polukhin

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[function] Bind to std::function if supported?
by Andrew Ho 09 Jul '13

09 Jul '13

The boost::move library binds to std::move/T&&/etc. when the compiler supports such features, and only uses work-around mechanisms when the compiler lacks such support. Should we add similar support for boost::function? something like: #ifdef BOOST_FUNCTION_USE_STANDARD_LIBRARY_FUNCTION // alternative: #ifndef BOOST_NO_CXX11_HDR_FUNCTIONAL #include <functional> namespace boost { using ::std::function; } #else // whatever boost::function currently does #endif // ... something similar for boost::bind and std::bind I haven't looked at boost::atomic yet, but we could also consider similar bindings to std::atomic if the library doesn't already do so.

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[shared_array] Why not in C++11 ?
by Sid Sacek 09 Jul '13

09 Jul '13

Does anyone know why 'boost::shared_array<>' was not made part of C++11, since pretty much all the other smart pointers were? -Sid

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[context] SSE/AVX registers preservation
by Andrey Semashev 09 Jul '13

09 Jul '13

Hi, I've been looking at Boost.Context and wondering whether it preserves SSE/AVX state on context switches. From the code it doesn't look like the case - only jump_x86_64_ms_pe_masm.asm contains the code that saves some (not all) xmm registers and ymm registers are never saved. Is this intentional or the library simply doesn't support SSE/AVX? And why not use xsave/xrstor to consistently support all future extensions?

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Re: [boost] Interest in a 'Boost.property' library?
by Joe Mucchiello 08 Jul '13

08 Jul '13

Personally, I always consider properties with getters/setters an anti-pattern for OOP languages like C++. Class interfaces should include only those methods that describe logically valid actions one might take on instances of the class. The idea of properties might sometimes be appropriate. But often times, programs will see a hammer and treat everything they see after it as nails. It becomes easy to add a few more getters and setters for "the rest" of the implementation details and you lose proper encapsulation. Usually when I find a class with lots of get/set methods I find a class with very little thought used when that class was designed.

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[log] Setup Windows event log backends
by Renato Forti 08 Jul '13

08 Jul '13

Work well, on win 7/vc 11! Win 8/vc 11, don't work! mc is not detected! On Thu, Jul 4, 2013 at 11:38 PM, Renato Forti <re.tf(a)acm.org> wrote: > Hi, > I did, but don't work! I have mc, and I remove bin.v2. But boost build > don't find my mc :( > > - message-compiler : no > - compiler-supports-ssse3 : yes > - compiler-supports-avx2 : yes > - gcc visibility : no > - long double support : yes > > C:\boost_1_54_0>mc > Microsoft (R) Message Compiler Version 1.12.9200 Copyright (c) > Microsoft Corporation. All rights reserved. > > No cached! I am on Windows 8, and vc11! Thanks again! Hm, that's strange. Perhaps, a Win 8 thing? What does bin.v2/config.log say? _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

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