December 2006 - Boost - lists.preview.boost.org

Boost regression notification (2006-12-15 [RC_1_34_0])
by Douglas Gregor 15 Dec '06

15 Dec '06

Boost Regression test failures Report time: 2006-12-15T12:10:43Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/i… 15 failures in 8 libraries concept_check (4) iostreams (1) python (2) regex (2) serialization (2) test (2) utility (1) xpressive (1) |concept_check| class_concept_fail_expected: borland-5.8.2 borland-5.8.2 msvc-6.5 msvc-6.5 |iostreams| finite_state_filter_test: cw-9.4 |python| injected: msvc-6.5 vector_indexing_suite: msvc-8.0 |regex| regex_regress_threaded: msvc-6.5 msvc-6.5 |serialization| test_contained_class_xml_archive: msvc-8.0 test_demo_shared_ptr_dll: msvc-8.0 |test| prg_exec_fail2: darwin-4.0.1 prg_exec_fail3: cw-9.4 |utility| operators_test: gcc-3.4.5_linux_x86_64 |xpressive| test1: msvc-8.0

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[Boost-bugs] [ boost-Feature Requests-1616521 ] [ublas] vector::back()
by SourceForge.net 15 Dec '06

15 Dec '06

Feature Requests item #1616521, was opened at 2006-12-15 11:18 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=357586&aid=1616521&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Server Levent Yilmaz (slyilmaz) Assigned to: Nobody/Anonymous (nobody) Summary: [ublas] vector::back() Initial Comment: It would be nice to have this useful, nice little member... T& back() { return *rbegin(); } and const T& back() const { return *rbegin(); } ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=357586&aid=1616521&group_… ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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RudbekAssociates-V2 stuck
by Roland Schwarz 15 Dec '06

15 Dec '06

To the Rudbek Testmanager. I have noted that the threading library test seem not run since October. Now that I have looked into the regression.log file I suspect that the cvs update is doing something wrong: 1) Boost.Thread is neither from the HEAD nor RC_1_34_0 branch. (It would be nice if this would also be recorded in the log.) 2) There are a lot of error messages (during CVS update) which I do not understand. One example: cvs update: cannot remove boost/spirit/classic/v1_8/utility/impl/chset: Bad address 3) The bjamv2.log finds only ...updating 173 targets... to update, which is astonishingly low. 4) A lot of tests are not run or build (this affects not only threading lib). Can anyone help resolving this issue please? Roland

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[signals] connection death notification
by Bryan Silverthorn 15 Dec '06

15 Dec '06

Is there any mechanism in boost::signals that could provide notification when a slot/connection dies (is disconnected)? This functionality is needed to "chain" signals effectively. Imagine wrapping an existing signal-based library with a signal-based interface of some other type: a user connects to some signal on the wrapper, which then connects to some corresponding signal in the inner library. If the user disconnects from the wrapper's signal, the wrapper library would like to disconnect its associated connection to the inner library signal---but it has no way of knowing when the user's connection dies. Am I missing some trick that would give me this functionality? Would a patch implementing this functionality be accepted? Any suggestions for such an interface? -- Bryan Silverthorn <bsilvert(a)cs.utexas.edu>

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[BoostBook] documentation typo
by Michael Marcin 15 Dec '06

15 Dec '06

http://tinyurl.com/uuqvb "This section describes how to manually configure Boost Boost version 2 (BBv@) for BoostBook." I'm pretty sure that's not quite right :) Probably meant: "This section describes how to manually configure Boost Build version 2 (BBv2) for BoostBook." - Michael Marcin

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[1.34.0] Status Report
by Thomas Witt 15 Dec '06

15 Dec '06

Hi, This is the status of the 1.34.0 release as I see it. I'll update it on a roughly weekly basis. The main purpose of this is to make people aware of outstanding issues and maybe motivate some volunteers. In general I think regression results are finally looking promising and we should shoot for a beta release before new years. That being said there are still outstanding issues. Regression Tests ================ - Lots of probably configuration related regressions in some msvc tests as pointed out here: http://article.gmane.org/gmane.comp.lib.boost.testing/3751 http://article.gmane.org/gmane.comp.lib.boost.testing/3749 - concept_check Regressions for borland 5.8.2 and msvc 6.5. The borland fail should be marked expected (http://article.gmane.org/gmane.comp.lib.boost.devel/ 152138). Who's going to take care of the msvc-6.5 failure? - iostreams Broken on cw-9.4. Anybody working on this? - regex Fails msvc-6.5 no known fix. - test Fails darwin-4.0.1, cw-9.4 no known fix. - utility Fails gcc-3.4.5_linux_x86_64 no know fix. As I said we are getting close, but we *really* need people to look at the outstanding issues. Build ===== - Getting Started Guide Dave is making significant progress on this and I think it'll be a major step forward once it's done. - v2 transition There still seem to exist vestiges of the old build system in some places. See here: http://article.gmane.org/gmane.comp.lib.boost.build/14768 This issue is unresolved as of now. We are seeking help and input. Inspection ========== - File name guidelines We still have 7 file/directory names issues in the following components boost/archive/basic_streambuf_locale_saver.hpp: *N* name exceeds 31 characters tools/build/v2/example/make/main.cpp.pro: *N* name contains more than one dot character ('.') boost/graph/maximum_cardinality_matching.hpp: *N* name exceeds 31 characters libs/graph/doc/lengauer_tarjan_dominator_tree.htm: *N* name exceeds 31 characters libs/graph/doc/sorted_erdos_renyi_generator.html: *N* name exceeds 31 characters libs/test/build/msvc71_proj/config_file_iterator_test.vcproj: *N* name exceeds 31 characters regression/.htaccess: *N* leading character of ".htaccess" is not alphabetic I consider these showstoppers for the final release. Could the respective library authors please take care of this? - Broken Links We still show 116 broken links. Is the report broken or the docs? - License Copyright We still have large number of license copyright issues. To me the do we really need a license/copyright for xxx discussion is not very productive. My personal attitude is get over it and fix it. While this is not a showstopper fixing them will be well received by our users and now is the time to do it. Please let me know of issues not covered here. I'll add them to the list. Thanks Thomas Thomas Witt witt(a)acm.org

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Compilation Error in Linux
by prateek khanna 15 Dec '06

15 Dec '06

Hi, I am using Boost for the first time and now i am stuck when i try to compile code in Linux. We have Linux RHEL 7.2 and g++ 2.96. I managed to execute the sample code Simple_ls in Windows VC++ 6, but when I try to compile the same code in Linux it gives me many errors. I am using follow command to compile my linux code. g++ -c -I /usr/local/include/boost-1_33_1/ -L /usr/local/lib Simple_ls.cpp I have attached a file which contains the error i am getting. I have never worked on Linux earlier, so i think most probably I am missing out on making some setting in Linux environment or macros If somebody can help me, I would be very grateful. :-)

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[Boost-bugs] [ boost-Support Requests-1616142 ] Building Boost with VS C++ 2005 express problem
by SourceForge.net 15 Dec '06

15 Dec '06

Support Requests item #1616142, was opened at 2006-12-14 18:10 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1616142&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Building Boost Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Building Boost with VS C++ 2005 express problem Initial Comment: I am having trouble building the boost headers and lib files. I have gone here and followed directions. http://www.boost.org/tools/build/v1/vc-8_0-tools.html When I open my micrcsoft platform SDK I go to where boost is installed c:\boost\boost_1_33_1 and type bjam "-sTOOLS=vc-8_0" stage This gets me a windows error would I like to report it to microsoft. bjam "-sTOOLS-vc-8_0 " stage output of -tools.jam: No such file or directory and and windows error. does LIBPATH need to be updated in vsvars32.bat I am not logged into sourceforge but my email address is serpentor3(a)hotmail.com ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1616142&group_… ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Re: [boost] [any] interest in boost::variant style visitors for boost::any?
by Steven Watanabe 15 Dec '06

15 Dec '06

AMDG "Korcan Hussein" wrote: > "Steven Watanabe " wrote: > >> >Do you intend to make boost::any a typedef then? >> > That would do it unless there is some non-obvious ambiguity that this > may cause. Not that I know of. > Basically what i meant was you have 4 cases of: cosntant visitor > visits constant and non-constant visitee non-constant visitor visits > constant and non-constant visitee constant visitee accepts cosntant & > non-constant visitor non-constant visitee accepts cosntant & > non-constant visitor Ok. >> >For this last I don't think there is a good non-intrusive solution. >> > Are you talking about the complete solution or catch-all part? i don't > see exactly how this is an intrusive solution so please elaborate/clarify. It isn't. I was thinking specifically about dynamic_any. >> >If the default is to throw an exception then it effectively limits the >> >contained type to those enumerated. In this case it is probably better to >> >use variant in the first place. >> > I don't see what the problem is since a user can override the default > or later extend there original visitor to support new (set) type(s), > as well as override the definition of the old supported types if > he/she wishes. I don't quite understand. Would I extend it statically or dynamically? > This solution seems to be much better than type casting (for every > type wanted) & type switching code that you have to do with > boost::any::. If no one likes the idea of a default catch-all/generic > visit and have a better alternative then i'm open to it since this > isn't set in stone and isn't diffcult to change since the > implementation is so trivial :) Actually when i think about it the > "catch-all" isn't even really need/necessary, the original reason why > i put it in in the first place was as a constrast to generic visits of > with boost::variant visitors. You still need a catch-all even if it is not exposed to the user, don't you? > Anyways it looks as if no one is interested, even just to make a > comment of any form :( Thanks Korcan Hussien. In Christ, Steven Watanabe

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Re: [boost] If boost::fusion is the hammer, then what's the nail?
by Steven Watanabe 14 Dec '06

14 Dec '06

AMDG Weapon Liu wrote: > I think this is the right place to ask this question. > As cool as boost::fusion is, there's still one question that bothers me, > that is, if boost::fusion is the hammer, then what's the nail? > > I sure know that it's generic( more so than boost::tuple) and it's > complete( with a bundle of algorithms and cool utilities), and it seems > that it "solves" some problem quite well( when I read the documents). > > However, I found it bothering that the documents didn't even mention one > real-world application( boost libs aside). > > Based on my experience, the most frequent scenarios where > boost::tuple/fusion is useful are those where one needs a > generated-on-the-fly struct for holding return values bundle, or where > one needs to return multiple values transparently( well, nearly so), > just like those lua does. > > Other than that, I can't really imagine a scenario where this kinda > stuff kicks butts. The biggest disadvantage of boost::fusion, I think, > is that the size of it is known and fixed at compile time, which renders > it not so qualified as a truly heterogeneous container. > > And by the bye, that it can be used to build a handy pseudo-struct that > enables full introspection really is a good and fancy feature. However, > there's something fundamentally irremediable of it, that is, it can't be > used to build a full-fledged class( rather than a POD-struct), which, I > think, will too reduce its usefulness w.r.t. this kinda situations. > > I personally very like this fancy facility, and that's why I present > these mumbles here to annoy you guys( if so, my apologies go here:-)) > Any comments? > > I needed basically the functionality of fusion::map to implement a table of function pointers. I can't use fusion for this though because I rely on POD initialization. In Christ, Steven Watanabe

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