January 2015 - Boost - lists.preview.boost.org

ATTN library maintainers: libraries missing metadata files
by Peter Dimov 08 Jan '15

08 Jan '15

The following libraries are currently missing the metadata file meta/libraries.json, which describes the library: libs/algorithm/meta/libraries.json does not exist libs/assign/meta/libraries.json does not exist libs/bimap/meta/libraries.json does not exist libs/compatibility/meta/libraries.json does not exist libs/detail/meta/libraries.json does not exist libs/disjoint_sets/meta/libraries.json does not exist libs/function_types/meta/libraries.json does not exist libs/graph_parallel/meta/libraries.json does not exist libs/icl/meta/libraries.json does not exist libs/iostreams/meta/libraries.json does not exist libs/locale/meta/libraries.json does not exist libs/local_function/meta/libraries.json does not exist libs/numeric/meta/libraries.json does not exist libs/parameter/meta/libraries.json does not exist libs/ptr_container/meta/libraries.json does not exist libs/python/meta/libraries.json does not exist libs/random/meta/libraries.json does not exist libs/range/meta/libraries.json does not exist libs/rational/meta/libraries.json does not exist libs/scope_exit/meta/libraries.json does not exist libs/serialization/meta/libraries.json does not exist libs/statechart/meta/libraries.json does not exist libs/sync/meta/libraries.json does not exist libs/typeof/meta/libraries.json does not exist libs/type_erasure/meta/libraries.json does not exist libs/uuid/meta/libraries.json does not exist libs/winapi/meta/libraries.json does not exist Many of those libraries already have pull requests that contain the file. Please accept them and then merge them to master as well. :-) The file format is documented here: http://www.boost.org/development/library_metadata.html

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Boost.Sort library hierarchy and namespacing
by Steven Ross 08 Jan '15

08 Jan '15

For the Boost.Sort library, I'm planning to add these (non-detail) files: boost/sort/sort.hpp boost/sort/spreadsort/spreadsort.hpp boost/sort/spreadsort/integer_sort.hpp boost/sort/spreadsort/float_sort.hpp boost/sort/spreadsort/string_sort.hpp Should all of these be in the boost::sort namespace? It seems silly to have a boost::sort::spreadsort namespace when there are only 5 publicly-visible functions in it. I actually can't imagine how of these names will conflict with names in other boost libraries, but using a boost::sort namespace appears conventional. Are there any objections or concerns based on this? Once this is done, I'd like to integrate this library into the boost build and testing system for the next appropriate release (I test it currently with modular boost).

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Directory structure not quite right yet?
by Peter Dimov 08 Jan '15

08 Jan '15

Typically, when some library is installed in, say, $LIB, its headers reside in $LIB/include and its .a/.lib files in $LIB/lib. Our libraries, when built, go to $BOOST/stage/lib, which is close enough. But our header directory is just $BOOST, which doesn't seem right, as the whole of Boost is accessible through it. It makes sense, at least to me, to have the headers in $BOOST/include/boost, instead of just $BOOST/boost. The transition to Git would have been a good time to switch to that - there were enough other changes to the structure. I'm not saying that we should switch right away or something like that, but am I the only one to whom such a switch (at some unspecified time in the future) seems a good idea?

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Is TypeOf library maintained?
by Adam Wulkiewicz 08 Jan '15

08 Jan '15

Hi, I'm asking because the most recent change in develop was done in 2013 and the last merge to master (or rather SVN release) was done in 2011. Would it be possible to along with the metadata PR have this trivial fix merged: https://github.com/boostorg/typeof/pull/1 ? It hangs there more than a half year. Thanks, Adam

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New dependency report
by Peter Dimov 08 Jan '15

08 Jan '15

Here: http://www.pdimov.com/tmp/report-develop-3b5a9f4/module-overview.html http://www.pdimov.com/tmp/report-develop-3b5a9f4/module-levels.html and (new) here: http://www.pdimov.com/tmp/report-develop-3b5a9f4/module-weights.html "Weight" is on how many other modules a module depends, both directly and indirectly.

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[Tick] Universal quantified concepts/traits
by Vicente J. Botet Escriba 06 Jan '15

06 Jan '15

Hi, I'm trying to represent the concept of a mathematical Functor (as in Haskell) with Concept Lite. Here is what I want to express: A Functor W is a type constructor for wrappers of another type T providing a function map taking a function (T) -> U and a W<T> and returning a W<U>. Here is how I think that could be done with Concept Lite. If I understand the proposal correctly we need to add the type T and the function parameter to the concept. concept Functor<typename W, typename T, typename F > = requires { using WT = ApplyType<W, T>; // type constructor using U = ResultType<F, T>; using WU = ApplyType<W, U>; Function<F, U, T> && requires (F f, WT wt) { WU { map(f, wt) }; } }; But this is not exactly what I want to conceptualize. The wrapped type T and the function F should be universally quantified, that is, the concept concerns only the type constructor W: Functor<W>. I have a problem introducing the universal quantification of T and F. I don't know how to do it without using again a template. concept Functor<typename W> = template <typename T, typename F> // universal quantification on T and F requires { using WT = ApplyType<W, T>; using U = ResultType<F, T>; using WU = ApplyType<W, U>; Function<F, U, T> && requires (F f, WT wt) { WU { map(f, wt) }; } } }; But this is not valid code, isn't it. Is there something wrong with this kind of concepts? What would be the best way to conceptualize this kind of concepts with the Tick library ? Best, Vicente

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bpm, a tool to install a modular Boost distribution
by Peter Dimov 06 Jan '15

06 Jan '15

One month ago, Stephen Kelly wrote: > git affects the developer workflow, but that thread was about creating > modular releases and downloads, which is a different goal and has a > different set of problems to solve. That's what that thread was about. I > didn't see any desire to have that as a goal in the thread. > > Git doesn't affect users. > > Before and after transition to git, they download all-of-boost.zip from > the boost website. To address this point of his, I've been working at a tool, bpm, that can install a modular Boost distribution. As I've already mentioned in other threads, it works like this: D:\boost-1.60.0>bpm install system bpm: installing module 'system' bpm: installing module 'assert' bpm: installing module 'config' bpm: installing module 'core' bpm: installing module 'predef' bpm: installing module 'build' bpm: the following libraries need to be built: system bpm: (use ./b2 to build) bpm: recreating header links bpm: recreating index That is, when told to install Boost.System, it downloads and installs the 'system' package into ./libs/system, along with all its dependencies, then creates links to the headers (like 'b2 headers') in ./include and an ./index.html file listing the installed libraries. The full syntax is: D:\boost-1.60.0>bpm Usage: bpm [-v] [-q] command [options] [modules] -v: Be verbose -vv: Be more verbose -q: Be quiet bpm install [-n] [+d] [-k] [-a] [-i] [-p] <module> <module>... Installs the specified modules and their dependencies into the current directory. -n: Only output what would be installed +d: Do not install dependencies -k: Do not remove partial installations on error -a: All modules (use instead of a module list) -i: Installed modules -p: Partially installed modules bpm remove [-n] [-f] [-d] [-a] [-p] <package> <package>... Removes the specified packages. (A package, like 'numeric', can contain more than one module.) -n: Only output what would be removed -f: Force removal even when dependents exist -d: Remove dependents as well. Requires -f -a: Remove all packages. Requires -f -p: Remove partially installed packages bpm list [-a] [-i] [-p] [-b] [prefix] Lists modules matching [prefix]. -a: All modules (default when no -b) -i: Installed modules (default when -b) -p: Partially installed modules -b: Modules that require building bpm headers Recreates the header links in the include/ subdirectory of the current directory. bpm index Recreates the file index.html, which lists the installed modules, in the current directory. -- This all works already under Windows. (I haven't finished the POSIX part yet but it should be close.) I could have made a Windows binary available for people to play with, but I'd rather give sources (at first). bpm contains code to do rm -rf <directory>, and if I've made a mistake somewhere, it could cause damage. So, if there is interest and there are no objections, I'd like to put this tool into the Boost repository, in tools/bpm.

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[GIL] runtime assertion error
by Stephan Menzel 06 Jan '15

06 Jan '15

Hello, I was playing with GIL a little and started out with the tutorial. After adapting it a bit I noticed a runtime assertion error here in color_base.hpp +343: template <typename Element, typename Layout, int K> typename element_reference_type<homogeneous_color_base<Element,Layout,K> >::type dynamic_at_c(homogeneous_color_base<Element,Layout,K>& cb, std::size_t i) { assert(i<K); return (gil_reinterpret_cast<Element*>(&cb))[i]; } The example works if I compile in release but I still wanted to bring it up because of an extensive comment above this template that states that this assertion checks for compiler specific behavior and mentions flags that need to be set but not which flags. I believe there might be a bug there. Also, since it's the tutorial, I suppose it should work under most circumstances. I have a sample of the code attached. It's gcc 4.8 here in Linux 64. Nothing fancy. Boost 1.56. Cheers, Stephan

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Library list generated from meta/libraries.json files
by Peter Dimov 06 Jan '15

06 Jan '15

I've put a library list generated from the meta/libraries.json files, at: http://www.pdimov.com/tmp/boost/index.html Library authors may wish to take a look at their library entry and see if they're happy with it. What I've noticed so far is that many libraries are missing the boost-version (First Release) entry, and that Config is missing authors for some reason. The other thing is that the category names in the json files are the internal identifiers, which I've left as-is, as I didn't want to hardcode a mapping. We'll have to decide whether to use the proper names in the json files, or whether to have a separate categories.json with the mapping somewhere. I tend towards the first option.

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[status] explicit-failures-markup.xml edit permissions
by Vladimir Batov 05 Jan '15

05 Jan '15

On some compilers some of my SFINAE-related "convert" regression tests fail. So, I tried to update status/explicit-failures-markup.xml to explicitly mark those test failures rather than masking/disabling them. For understandable reasons I have no permissions to modify the file, so that update of mine was denied. I tried contacting Daniel James as he often helps me with build matters but he is seemingly unavailable. I am hoping someone else might have edit-permissions to the file and be kind enough to add the following code (below) to the file for me? My apologies for such a wide post or if my request is misdirected. Your help in the matter is much appreciated. Thanks, Vladimir.  <library name="convert"> <test name="convert_test_has_begin"> <mark-failure> <toolset name="msvc-8.0*"/> <toolset name="msvc-9.0*"/> <toolset name="msvc-10.0*"/> <toolset name="msvc-11.0*"/> <note author="Vladimir Batov"> The relevant SFINAE support is broken in MSVC up to version 11. </note> </mark-failure> </test> </library>

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[functional] Is anyone maintaining it?
by Andrzej Krzemienski 05 Jan '15

05 Jan '15

Hi Everyone, I can see that the pull request I submitted at https://github.com/boostorg/functional almost three months ago has not been acted upon. Is the library still maintained? Regards, &rzej

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[test] Problems with UTF-8 paths in GIT.
by Rene Rivera 05 Jan '15

05 Jan '15

This commit < https://github.com/boostorg/filesystem/commit/785d521b54140763dd23ef091a18d…> is causing me some problems with some git clients. In particular the git client in Eclipse errors out with some unsupported / invalid messages. I know why those dir names are the way they are.. But we still are supposed to follow the naming rules we agreed to < http://www.boost.org/development/requirements.html#Directory_structure>. -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail

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[filesystem] Problems with UTF-8 paths in GIT.
by Rene Rivera 05 Jan '15

05 Jan '15

Sorry.. I used the wrong tag :-( Now using the correct tag. On Mon, Jan 5, 2015 at 11:27 AM, Gennadiy Rozental <rogeeff(a)gmail.com> wrote: > Rene Rivera <grafikrobot <at> gmail.com> writes: > > Sorry, I might be missing something: what does this have to do with [test]? > > Gennadiy > > > _______________________________________________ > Unsubscribe & other changes: > http://lists.boost.org/mailman/listinfo.cgi/boost > -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail

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[githelp] Delete/hide branch..
by Rene Rivera 05 Jan '15

05 Jan '15

In cleaning up the "regression" subrepo.. I'm wanting to delete or hide the master branch as it: has horribly outdated code, and I'm only going to ever edit the develop branch. How do I delete or hide a branch? -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail

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[build,quickbook] complete doxygen output
by Gennadiy Rozental 05 Jan '15

05 Jan '15

> Maybe you can ask a separate thread, describing > what you want, so that Boost.Book experts notice it more easily? Hi, Per Vlad suggestion I am creating a separate thread about this. It should probably go into documentation list as well, but I am not sure how to do this in gmane interface > I would like to help, but Boost.Build only runs doxygen and then invokes > various XSLT tarnsforms. Everything else is either doxygen itself, or > Boost.Book, where I can only make trivial tweaks. What I am after is alternative rule, which will not try to make quickbook like output out of doxygen, but instead just leave it alone. So I need to run doxygen place the output somewhere and somehow point my quickbook based docs to that output. How would the Boost.Build rule look like? > What do you mean by 'bind' here? I want to bind references to class/function/module names to entries in generated doxygen docs. I am fine with some quickbook template I can apply, but automation would be even better. Gennadiy

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libraries.json missing boost-version, update-version
by Peter Dimov 05 Jan '15

05 Jan '15

I notice that the library list at the website has a "First Release"entry for each library; these apparently come from the tag <boost-version> in libraries.xml, which also has an <update-version>. The meta/libraries.json files, however, appear to have no such data. Is this intentional?

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[build] Tests automatically create header links, but library builds do not
by Peter Dimov 05 Jan '15

05 Jan '15

If I remove my boost/ directory, and attempt to build, for example, atomic, by going into libs/atomic/build and invoking b2, it fails due to a missing header: D:\tmp2\libs\atomic\build>b2 toolset=msvc-8.0 ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsall_x86.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsall_x86_amd64.cmd ...updated 1 target... Performing configuration checks - symlinks supported : no - junctions supported : yes - hardlinks supported : yes ...found 208 targets... ...updating 5 targets... common.mkdir ..\..\..\bin.v2\libs\atomic\build\msvc-8.0\debug\threading-multi compile-c-c++ ..\..\..\bin.v2\libs\atomic\build\msvc-8.0\debug\threading-multi\lockpool.obj lockpool.cpp ..\..\..\boost/atomic/detail/ops_msvc_x86.hpp(20) : fatal error C1083: Cannot open include file: 'boost/type_traits/make_signed.hpp': No such file or directory [...] Same if I do b2 --with-atomic from root. However, if I go into, say, libs/smart_ptr/test and invoke b2 there, it works: D:\tmp2\libs\smart_ptr\test>b2 toolset=msvc-8.0 ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsa ll_x86.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsa ll_x86_amd64.cmd ...updated 1 target... Performing configuration checks - symlinks supported : no - junctions supported : yes - hardlinks supported : yes ...patience... ...found 1722 targets... ...updating 1253 targets... common.mkdir ..\..\..\bin.v2\libs\smart_ptr common.mkdir ..\..\..\bin.v2\libs\smart_ptr\test common.mkdir ..\..\..\bin.v2\libs\smart_ptr\test\yield_k_test~mt.test common.mkdir ..\..\..\bin.v2\libs\smart_ptr\test\yield_k_test~mt.test\msvc-8.0 common.mkdir ..\..\..\bin.v2\libs\smart_ptr\test\yield_k_test~mt.test\msvc-8.0\debug common.mkdir ..\..\..\bin.v2\libs\smart_ptr\test\yield_k_test~mt.test\msvc-8.0\debug\threading-multi mklink-or-dir ..\..\..\boost\smart_ptr Junction created for ..\..\..\boost\smart_ptr <<===>> ..\include\boost\smart_ptr link.hardlink ..\..\..\boost\predef.h Hardlink created for ..\..\..\boost\predef.h <<===>> ..\..\predef\include\boost\predef.h [...] Why is that? My first thought was that this was due to the fact that I was missing libs/Jamfile.v2 (I do various "clean" installations as an experiment to see what's needed and what isn't), but I put it back there and it doesn't help.

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Linux regression test runners - What do devs want?
by Tom Kent 05 Jan '15

05 Jan '15

I've been pondering this recently, but a forced upgrade of my azure VMs last night is pressing the issue...and I wanted to solicit feedback before I go and set things back up... I've currently been running three testing machines for linux, with several testers on each, (windows is completely separate, and I'm happy with how that is running)...here was my past strategy: teeks99-03 - develop - lots of compiler versions (all I could get to run on ubuntu 12.04: gcc-4.4-4.8, clang-3.0-3.4) teeks99-04 - develop - only two compilers, with fast turnaround times (gcc-4.8, clang-3.4) teeks99-05 - master - lots of compiler versions (all I could get to run on ubuntu 12.04: gcc-4.4-4.8, clang-3.0-3.4) I can try to set things up like this again, but there are two reasons I was thinking about changing: 1) It seems that a lot of the gcc/clang versions have the same pass/fail results as the other versions of that compiler, so we're not adding a ton (though we may be adding the crucial points where a compiler change breaks something...is this something that devs have seen in practice?) 2) The new version of my runners (Ubuntu 14.04) doesn't easily support the old gcc versions, it would take a lot of effort to get some of the old ones running. Clang is even worse...it is much more difficult to get even two versions running side by side now. Instead of running lots of different versions, I was thinking about running various compatibility options of the two main compilers...I've seen some other test runners with things like libc++, c++11, c++14, etc. My real question, would developers be better served by these options than different versions? Would they prefer both with longer revisit times between each test type? Other thoughts? Tom

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gcc.archive fails under Windows/Cygwin
by Peter Dimov 05 Jan '15

05 Jan '15

Fails like this: gcc.archive ..\..\..\bin.v2\libs\system\build\gcc-4.8.3\release\link-static\libboost_system-gcc48-1_58.a The system cannot find the path specified. The system cannot find the path specified. "/usr/i686-pc-cygwin/bin/ar.exe" rc "..\..\..\bin.v2\libs\system\build\gcc-4.8.3\release\link-static\libboost_system-gcc48-1_58.a" "..\..\..\bin.v2\libs\system\build\gcc-4.8.3\release\link-static\error_code.o" "/usr/i686-pc-cygwin/bin/ranlib.exe" "..\..\..\bin.v2\libs\system\build\gcc-4.8.3\release\link-static\libboost_system-gcc48-1_58.a" ...failed gcc.archive ..\..\..\bin.v2\libs\system\build\gcc-4.8.3\release\link-static\libboost_system-gcc48-1_58.a...

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Help required to start contributing to Boost.
by Ameya Prabhu 03 Jan '15

03 Jan '15

Hello, I am new to Boost. I'm fairly well at C++ and am programming since the last 6 months. I would like to contribute to its development. Can someone please help me out? I had a look at the website but I am unable to find bugs that are suitable for beginners. Thanks!

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[move] traits file problem causing many test failures.
by Fletcher, John P 03 Jan '15

03 Jan '15

There is a problem on the develop tests which was not there yesterday. In file included from ../libs/phoenix/test/regression/bug4853.cpp:16: In file included from ../boost/range/adaptor/transformed.hpp:15: In file included from ../boost/range/detail/default_constructible_unary_fn.hpp:13: In file included from ../boost/optional/optional.hpp:48: In file included from ../boost/move/utility.hpp:25: ../boost/move/traits.hpp:27:10: fatal error: 'boost/move/detail/type_traits.hpp' file not found #include <boost/move/detail/type_traits.hpp> ^ 1 error generated. I hope this can be sorted out soon. Happy New Year John

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[build] msvc.write_setup-script always called for msvc-12.0
by Peter Dimov 02 Jan '15

02 Jan '15

When I do (for example) C:\Projects\boost-git\boost\tools\boostdep\build>b2 toolset=msvc-8.0 I get ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_12.0_vcvarsall_x86.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_12.0_vcvarsall_x86_amd64.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsall_x86.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_8.0_vcvarsall_x86_amd64.cmd ...updated 1 target... which correctly generates the setup scripts for the specified msvc-8.0, but also unconditionally generates the setup scripts for msvc-12.0, which are not needed at this time. This msvc-12.0 generation occurs even if I use a non-msvc toolset, or even just do b2 --show-libraries. C:\Projects\boost-git\boost>b2 --show-libraries ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_12.0_vcvarsall_x86.cmd ...updated 1 target... ...found 1 target... ...updating 1 target... msvc.write-setup-script C:\Users\PETERD~1\AppData\Local\Temp\b2_msvc_12.0_vcvarsall_x86_amd64.cmd ...updated 1 target... The following libraries require building: - atomic - chrono [...]

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[filesystem] Junction support on Windows?
by Peter Dimov 02 Jan '15

02 Jan '15

Filesystem provides support for hard and symbolic links, but on Windows, hard links do not work on directories and symbolic links do not work for the majority of users because they require elevation by default. That is why, for example, "b2 headers" was changed to also use junctions, if possible. But if I, for another example, want to replicate "b2 headers" from a C++ program using Filesystem, I can't, because it offers no junction support. Should create_directory_symlink be enhanced to create a junction, if CreateSymbolicLink is not available or fails with ERROR_ACCESS_DENIED?

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[filesystem] resize_file_api leaks a HANDLE
by Peter Dimov 02 Jan '15

02 Jan '15

... when SetFilePointerEx or SetEndOfFile fails. BOOL resize_file_api(const wchar_t* p, boost::uintmax_t size) { HANDLE handle = CreateFileW(p, GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); LARGE_INTEGER sz; sz.QuadPart = size; return handle != INVALID_HANDLE_VALUE && ::SetFilePointerEx(handle, sz, 0, FILE_BEGIN) && ::SetEndOfFile(handle) && ::CloseHandle(handle); }

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updated Boost.Test devel->master: documentation needs
by Dave Gomboc 02 Jan '15

02 Jan '15

> What left in docs: > > * general reformating of existing pages and separation to "user's guide" and "advanced usage scenarios" (I am working on this) > * BOOST_TEST tool, including figuring out what to do with old testing tools description and reference > * data driven test cases (Raffi works on this) > * decorators support (Andrzej volunteered to help with this) > * run by name/label description. Including multitude of new syntax options > * figure out doxigen issues > * figure out new format for examples > * few minor issues with Boost.Logos > * investigate Boost.pp style left side menu (optional) > * interaction testing (optional) > * production use of Boost.Test (optional) > * anything else missing from above (hopefully nothing big) > > Any takers? > Gennadiy Thanks for posting this list, Gennadiy. I'll volunteer to write up a section on the production use of Boost.Test. I will, however, need source material in order to do so. Boosters, have you ever or do you now use either Boost.Test or an alternative testing framework in a production-like manner? - with more complicated or less common build systems - when regression testing across multiple versions of dependent libraries - when regression testing across multiple toolchains and/or platforms - as part of deployments within virtualized containers - et cetera If so, could you please describe your setup, either here on-list or privately to myself? I will collect the responses received, and from them, prepare documentation so that people new to Boost.Test can get started with setting up production-quality regression testing environments. Dave

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