April 2015 - Boost - lists.boost.org

std::map<> - like structure for other than std::pair<>?
by David Hagood 16 Apr '15

16 Apr '15

Several times I have run into a use case where I have some object that I would like to access via something like a std::map<>, but which already contains a member that I would like to use as a key. Is there any data structure that "acts like a map", but instead of storing std::pair<key,value> allows me to store an object directly, and specify what member of that object is the key value? I can give a specific use case for this: For those of you not familiar with the SCA, there is an object called CF::Properties. This is a CORBA sequence (think std::vector) of objects of {string name, CORBA::Any value}, used to store metadata. Ideally, I'd like to have an object that I could initialize from that sequence that would allow me to do things like this: inline string &getKey(CF::Property &x) { return x.name; } void foo(CF::Properties &meta) { mapLikeThing<CF::Property,getKey> myMap(meta); double sampleRate; myMap["SampleRate"] >> sampleRate; setHardwareSampleRate(sampleRate); }

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Fwd: Windows Intel Compiler problem
by Mari Pecha 15 Apr '15

15 Apr '15

Good morning, I try compile boost with Intel Compiler under Windows OS, but I got an error message screen is in attachments. I don't know what I'm doing wrong, can you help me? Thank you Mari --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com

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GSOC 2015 Sample Code
by Aditya Avinash Atluri 14 Apr '15

14 Apr '15

Hi, I was unable to put sample code during submission because I was busy with Mesa. Here is the sample code: https://gist.github.com/adityaatluri/22c97a726c304d9e5c50 -- Regards, Aditya Avinash Atluri, Graduate Student, Electrical and Computer Engineering, The George Washington University, Washington, DC.

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htmlspecialchars and urlencode?
by Olaf van der Spek 14 Apr '15

14 Apr '15

Hi, Does Boost have functions like htmlspecialchars and urlencode (from PHP)? If not, I think they'd make a nice addition to the string algorithm lib. -- Olaf

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boost::posix_time::duration_from_string throws std::out_of_range
by George Georgiev 13 Apr '15

13 Apr '15

Hi, I just noticed that boost::posix_time::duration_from_string throws std::out_of_range when I pass empty string to it. This seems like a bug, IMHO it should throw boost::bad_lexical_cast as it does for any other problem with the input. Thanks, George

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Git tags and Boost release
by Robert Ramey 12 Apr '15

12 Apr '15

I look in my history of the master branch and It seems to me I would like to be able to know which commit corresponds to which Boost release. I think the correct functionality to do this is described here. http://git-scm.com/book/en/v2/Git-Basics-Tagging I'm wondering if we want to do this upon release so we can remember where we were when something blows up. Ideally, I'd like the release managers to be able to just global to the "mark" when the release is "official" I like git - but anything I haven't done before is out of my comfort zone. So any insight would be appreciated. Robert Ramey -- View this message in context: http://boost.2283326.n4.nabble.com/Git-tags-and-Boost-release-tp4674328.html Sent from the Boost - Dev mailing list archive at Nabble.com.

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[modular boost][install] Signals2 include links not being generated during build
by Greg Rubino 12 Apr '15

12 Apr '15

Hi, I'm building modular boost on 32-bit debian linux, and the build runs without error, but the links for some of the header files are not created. Here's what I'm running: $ bash bootstrap.sh $ ./b2 --runtime-link=static --without-python --without-mpi --without-iostreams At the end of the build (which shows warnings but no failures), I get this message: """ ...updated 836 targets... The Boost C++ Libraries were successfully built! The following directory should be added to compiler include paths: .../boost The following directory should be added to linker library paths: .../boost/stage/lib """ But for some reason signals2 is not being built. From the boost build directory: $ ls stage/lib/libboost_signals2* ls: cannot access stage/lib/libboost_signals2*: No such file or directory $ ls boost/signals2.hpp ls: cannot access boost/signals2.hpp: No such file or directory I'm not sure what happened or even how to diagnose whatever the issue might be. Has anyone seen this before or have any troubleshooting tips for me? Thanks, Greg

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1.58.0 rc3 is now available
by Marshall Clow 12 Apr '15

12 Apr '15

Release candidate files for 1.58.0 are available at: http://boost.cowic.de/rc/ * Since rc1, the changes that were causing the serialization libraries to fail to build on MSVC have been reverted. * Since rc2, the documentation for bind, and mem_fun. No code changes. As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. This helps ensure the candidates build OK before we push them out to SourceForge. The files (and associated md5s) are: MD5 (boost_1_58_0_rc3.7z) = f7255aeb692c1c38fe761c32fb0d3ecd MD5 (boost_1_58_0_rc3.tar.bz2) = b8839650e61e9c1c0a89f371dd475546 MD5 (boost_1_58_0_rc3.tar.gz) = 5a5d5614d9a07672e1ab2a250b5defc5 MD5 (boost_1_58_0_rc3.zip) = b0605a9323f1e960f7434dbbd95a7a5c Thanks! -- The release managers P.S. Release notes are here: http://www.boost.org/users/history/version_1_58_0.html

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[serialization][develop] Unable to find file or target named 'test_polymorphic_helper.cpp'
by Dmitry Moskalchuk 11 Apr '15

11 Apr '15

It seems that latest commit to develop branch of Boost.Serialization (https://github.com/boostorg/serialization/commit/a32549c25fa983fea2b5dfeaf9…) break build of Boost: error: at /home/cislave/.crystax/ci-boost/regression/android-19-armeabi-v7a-develop/test/develop/regression/armeabi-v7a/test/boost_bb/src/kernel/modules.jam:107 error: Unable to find file or target named error: 'test_polymorphic_helper.cpp' error: referred to from project at error: '../libs/serialization/test' And really, there is no file libs/serialization/test/test_polymorphic_helper.cpp. I guess it was forgotten to be added to git. -- Dmitry Moskalchuk

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[Boost Document Library] Which SDK / OS to use for development?
by Abhinav Tripathi 11 Apr '15

11 Apr '15

I am trying to start the development of a Document Library for Boost which was listed under the GSoC projects list. I successfully built Boost 1.57 on windows 8 with MinGW using some help from this mailing list. Now, i wish to develop the library on windows only (Although i can shift to linux if need be).... When i went through the links provided on the ideas list, i came across following things : --The OpenOffice SDK asks to either use linux or Visual Studio on Windows and there is practically nothing (documentation) for compiling with MinGW. --The LibreOffice SDK also asks to install many *nix tools first and also doesn't mention anything about compatibility with MinGW. --The last 2 links use .NET and some other MS libraries which i am pretty sure won't be much portable... . I wish to develop the library so as to get it accepted to Boost at some point. I assume that Boost would accept only cross platform code, so i discarded the last two links. I am now in a dilemma..... Which of the 2 SDK should i try to use on Windows with MinGW.. Or should i NOT develop on windows and shift to linux... . Also, The MS Office formats are not open but other office formats might be open and hence i can also try and develop something without using any of the available SDKs. So, instead of developing of a wrapper, i can aim to develop a complete library to load and manipulate document files... . Please suggest some option and show me a way as to which SDK/Platform should i use. And how to continue the development for the Document Library. . Regards, Abhinav

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