May 2014 - Boost - lists.preview.boost.org

[gil] Status of gil:: extension:: io
by William Gallafent 31 May '14

31 May '14

Hi all, I noticed that a major update to gil's io extension was accepted into boost in 2011[1]. It disappeared from its own development repository in 2013[2]. It isn't present in boost 1.55[3]. It is present in boost's subversion trunk[4]. There's currently no mention of it in the release notice for boost 1.56[5]. Am I right to say that its presence in boost trunk means that it /will/ be included in boost 1.56, it just needs to be added to the documentation? If so, then great! Is there anything which needs to be fixed before it's ready to ship? I didn't see anything obvious when I searched this list's archives for “[gil]”. Thanks in particular to Christian, everybody else that worked on the io_new extension, and those that reviewed it! It's very useful to me, and I'm looking forward to its integration into boost so I don't have to add it myself from boost trunk :) [1] http://lists.boost.org/boost-announce/2011/01/0281.php [2] https://code.google.com/p/gil-contributions/source/detail?r=795 [3] http://svn.boost.org/svn/boost/tags/release/Boost_1_55_0/boost/gil/extensio… (this is the “old” io extension) [4] http://svn.boost.org/svn/boost/trunk/boost/gil/extension/io/ (and this is the “new” one) [5] http://www.boost.org/users/history/version_1_56_0.html -- Bill Gallafent.

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[optional] Top level bad_optional_access.hpp
by Andrey Semashev 31 May '14

31 May '14

Hi, I've noticed a new top-level header boost/bad_optional_access.hpp. It wasn't present in 1.55, so it is a recent development. AFAIK, top level headers are discouraged, all library specific headers, except the "include all" header, should be inside the library directory. Am I correct? If so, could this header be moved inside boost/optional?

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Standalone boost::ignore_unused_variable_warning()
by Adam Wulkiewicz 31 May '14

31 May '14

Hi, The ignore_unused_variable_warning() tool is used in many libraries. Its "main" definition (probably the first one) is in concept_check.hpp in the namespace boost but functions of the same name and purpose are also defined in the internals of some libraries (GIL, Interval, Test, uBlas, Unordered), probably to not include the whole concept_check.hpp. So I propose to move this useful tool out of the concept_check.hpp to somewhere else. Since it was already defined in the namespace boost, not boost::detail, the right place would probably be: boost/utility/ignore.hpp or boost/utility/ignore_warning.hpp Furthermore I propose to add a few overloads becasue it's common that the compiler warns about a few variables in the same function, so instead of using N calls: boost::ignore_unused_variable_warning(x) boost::ignore_unused_variable_warning(y) boost::ignore_unused_variable_warning(z) we could use only one: boost::ignore_unused_variable_warning(x, y, z) which would be more convenient to use and read. If you were ok with the change, I'd be glad to hear some tips how to make it in one commit, i.e. to modify two modules at once - modify a file in ConceptCheck and add a file to Utility? And finally I'm considering adding similar tool for unused typedefs because some compilers (GCC4.8) warns about them and there are cases, e.g. when some part of code is shielded with some #ifdef, where they can't be commented out or removed. E.g. something like this would work, though I'm not sure if there is no better way, so I'm open to suggestion. struct empty_type {}; template <typename T1, typename T2 = empty_type, typename T3 = empty_type> struct ignore_unused_typedef_warning {}; int main() { typedef int T1; typedef int T2; ignore_unused_typedef_warning<T1, T2>(); } Regards, Adam

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Re: [boost] [modularization] proposal and poll
by Peter Dimov 30 May '14

30 May '14

It didn't make it through. Please use http://www.pdimov.com/tmp/report.zip to download the report and http://www.pdimov.com/tmp/report/smart_ptr.html (say) to browse it. The version of boostdep I used to generate the report is attached and the generation procedure was as follows: mkdir ..\numeric boostdep.exe --list-modules > ..\modules.txt for /f %i in (..\modules.txt) do boostdep.exe --secondary --html %i > ..\%i.html The links in ..\numeric\*.html are broken because of the subdirectory, but I had no time to fix that. -----Original Message----- From: Peter Dimov Sent: Friday, May 30, 2014 23:37 To: boost(a)lists.boost.org Subject: Re: [boost] [modularization] proposal and poll Clickable HTML report for all modules, attached (if it makes it through).

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Adding detection of [u]intptr_t to Boost.Config (moving it from cstdint.hpp)
by Glen Fernandes 30 May '14

30 May '14

Any objection to me doing this? It would, of course, be non-breaking to anyone currently consuming it from Boost.Integer's cstdint.hpp. Glen

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Is this a MSVC bug?
by Andrzej Krzemienski 30 May '14

30 May '14

Hi, While tracking test failures in Boost.Optional library I discovered that the following program fires an assert in MS VC++ compiler (v. 10.0, 11.0, 12.0): #include <cassert> const int global_i = 0; struct TestingReferenceBinding { void operator=(const int& ii) { assert(&ii == &global_i); } void operator=(int&&) { } }; int main() { TestingReferenceBinding ttt; ttt = global_i; } Do you know if this a bug in VC++, or if that is supposed to be valid? Regards, &rzej

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Anyone is interested in being review manager of ‘Application’?
by Renato Forti 30 May '14

30 May '14

Hi All, The proposed ‘Boost.Application’, needs a Review Manager. Anyone is interested? The Docs: http://www.dokfile.com/appbeta4/docs/libs/application/doc/html/index.html The Project: https://github.com/retf/Boost.Application

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[utility][detail] Moving binary_search_test from utility to detail.
by Daniel James 30 May '14

30 May '14

Hi, I've created a couple of pull requests to move this test from utility to detail, as the header it's testing is in detail. I guess it's in utility because there weren't any detail unit tests when it was created. If there are no objections I'll merge them this weekend. https://github.com/boostorg/utility/pull/9 https://github.com/boostorg/detail/pull/2 Daniel

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How do you read this list?
by Gennadiy Rozental 30 May '14

30 May '14

Hi, I am having real problem following boost list nowdays. The second time this year gmane stopped posting RSS feed updates (last time it did not post any updates for like two month) and it was not even updating web interface for like a week recently. Is there any other browser based alternative for reading and posting? Gennadiy

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[smart_ptr][intrusive] boost::unique_ptr<>
by Adam Wulkiewicz 30 May '14

30 May '14

Hi, I remember that there was plans to release an "official" STD-conformant implementation of boost::unique_ptr<>. I found: http://boost.2283326.n4.nabble.com/unique-ptr-for-C-03-td4650231.html http://boost.2283326.n4.nabble.com/C-03-unique-ptr-emulation-td2658449.html Do someone know what's the outcome of this initiative? Regards, Adam

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