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[GSoC 2014] [ B-tree + Trie ]
by Cosmin Boaca 19 Feb '14

19 Feb '14

Hello, I am a second year BS student at Politehnica University of Bucharest and I am interested in contributing to boost during GSoC 2014. I would like to work at implementing the B-Tree data structure and continuing the work at the Trie data structure implemented in last year's gsoc. I would like to hear your opinion about this project and I would be glad to discuss with someone that is willing to be a mentor for it. Thank you, Cosmin Boaca

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[type_traits] Should namespace boost::align be namespace boost::detail::align?
by Glen Fernandes 18 Feb '14

18 Feb '14

I was working on a tiny library, Boost.Align, which would provide (among other things) a boost::align (that would be std::align if BOOST_NO_CXX11_STD_ALIGN is not defined, or a reasonably non-portable implementation otherwise) and found that type_with_alignment.hpp uses the identifier 'align' for a namespace within namespace 'boost'. Was this namespace intended to not be within boost::detail? If it can be, I'll send a pull request; if not, I'll choose a different identifier over 'align'. Glen

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Release script module
by Daniel James 18 Feb '14

18 Feb '14

Now that we have a separate module the release scripts we should remove them from the super project. I'll do that if there are no objections. Do we want to keep it as a submodule, or just completely separate? A lot of the scripts seem to be subversion specific, so can they just be deleted?

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[trac] Resolving tickets
by Ahmed Charles 18 Feb '14

18 Feb '14

https://svn.boost.org/trac/boost/ticket/9415 I've never used trac before and I'm trying to resolve this ticket, but I don't think I can. Do I need a 'trac id' to be able to resolve tickets? Or am I simply missing something?

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Re: [boost] Just another GSoC project idea: Create a Bjam clone based on the Boost libraries
by Brian Wood 17 Feb '14

17 Feb '14

Niall Douglas writes: > (My only request is that if you do do this, please stick a great big > auto-generated warning on the top of every bjam file output. I've got > nobbled by my build script changes getting eaten too many times in my > life!) I'm not sure. I generate both headers and source files. Currently in the headers, I have such a warning. But all of the generated files have a "zz." prefix. I could either put the big warning also in the source files or remove it from the header files. It seems to me that the naming convention might be enough of a warning. Also, I've liked the prefix since it groups the generated code together. -- Brian Ebenezer Enterprises - In G-d we trust. http://webEbenezer.net

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[Boost] [Config] Macros for the absence of a full C++11 <memory> implementation
by Glen Fernandes 17 Feb '14

17 Feb '14

Macros to determine the availability of C++11 functions in <memory> like std::align would be useful to me. (I know that declaration begs the inquiry "What conforming code would you write if std::align is not present?" but that is separate e-mail...) Would a BOOST_NO_CXX11_HDR_MEMORY be generally useful? Glen

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[graph] named_graph
by Jan Hudec 17 Feb '14

17 Feb '14

Hello, Looking for a way to add index of vertices by some id to adjacency_list graph I notices it derives from maybe_named_graph that should support this. However I didn't find any example nor really usable description of how to use it (I'd need to define boost::graph::internal_vertex_name, but I don't know what the typedef is supposed to be). Is there any code that uses this, anywhere? -- - Jan Hudec <bulb(a)ucw.cz>

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[sync] Included file not found
by Edward Diener 17 Feb '14

17 Feb '14

When I build boost libraries from the top with the latest modular-boost master with MingW/gcc-4.8.1 on Window I get thi error in sync: In file included from libs\sync\src\tss_windows_pe.cpp:9:0: ./boost/sync/detail/config.hpp:32:42: fatal error: boost/detail/winapi/config.hp p: No such file or directory #include <boost/detail/winapi/config.hpp> ^ I do not see this file anywhere. What is the issue and can this be corrected ?

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[thread] Errors when building wave
by Edward Diener 17 Feb '14

17 Feb '14

When building the Wave tool on the 'master' branch with gcc-4.8.1/MingW on Windows I am seeing these errors" ..\..\..\..\libs\thread\src\win32\thread.cpp: In static member function 'static unsigned int boost::thread::physical_concurrency()': ..\..\..\..\libs\thread\src\win32\thread.cpp:425:51: error: 'GetLogicalProcessor Information' was not declared in this scope GetLogicalProcessorInformation(NULL, &size); ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:429:21: error: 'SYSTEM_LOGICAL_PROC ESSOR_INFORMATION' was not declared in this scope std::vector<SYSTEM_LOGICAL_PROCESSOR_INFORMATION> buffer(size); ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:429:57: error: template argument 1 is invalid std::vector<SYSTEM_LOGICAL_PROCESSOR_INFORMATION> buffer(size); ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:429:57: error: template argument 2 is invalid ..\..\..\..\libs\thread\src\win32\thread.cpp:429:65: error: invalid type in decl aration before '(' token std::vector<SYSTEM_LOGICAL_PROCESSOR_INFORMATION> buffer(size); ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:430:52: error: request for member ' front' in 'buffer', which is of non-class type 'int' if (GetLogicalProcessorInformation(&buffer.front(), &size) == FALSE) ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:436:25: error: invalid types 'int[s ize_t {aka unsigned int}]' for array subscript if (buffer[i].Relationship == RelationProcessorCore) ^ ..\..\..\..\libs\thread\src\win32\thread.cpp:436:43: error: 'RelationProcessorCo re' was not declared in this scope if (buffer[i].Relationship == RelationProcessorCore) ^ Does anybody know what I have to do to get this working ?

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Just another GSoC project idea: Create a Bjam clone based on the Boost libraries
by Boris Schäling 17 Feb '14

17 Feb '14

Create a Bjam clone based on the Boost libraries 1. Write a parser for the most important rules (exe, lib and so on) based on Boost.Spirit 2. Use the parser's actions to create a dependency tree based on Boost.Graph 3. Attach Python functions to the nodes in the dependency tree based on Boost.Python 4. Implement Python functions for one toolset (like g++) The project promises a lot of variety as different Boost libraries have to be used. It's also an opportunity to get familiar with various Boost libraries. As it can be broken down into tasks it shouldn't be that difficult to make a realistic plan for a summer project. If there is anyone interested have a look at <https://github.com/boostcon/2011_presentations/raw/master/mon/Boost.Build.p…> and <http://www.highscore.de/cpp/boostbuild/> for more information about the build system. And of course the idea is not to create a fully featured Bjam clone in a few months. If there is a binary at the end of the project which can build a software based on a simple Jamfile the project is a success. It's more important to have all the required components in place even if they are far from complete (but once they are in place it shouldn't be too difficult to extend them later and add support for another rule for example). Boris

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