July 2005 - Boost - lists.boost.org

[function_type] attempt to freeze interface and tags documentation
by Tobias Schwinger 03 Jul '05

03 Jul '05

Just reply hook for me to bundle other posts.

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Formal Review: Typeof
by Andy Little 02 Jul '05

02 Jul '05

The formal review of Arkadiy Vertleyb and Peder Holt's Typeof library begins today, May 20th 2005. The review period will continue until the 30th of May. The proposed Typeof library emulates the functionality of the non-standard 'typeof' operator, and incomplete implementations of decltype and the proposed 'auto' declarator , described in http://www.osl.iu.edu/~jajarvi/publications/papers/decltype_n1478.pdf. It is commonly acknowledged that this type of functionality is sorely needed and should be standardardised in the language. For compliant compilers the library requires some help in the form of registration macros but, because use of typeof is by its nature most likely in generic libraries, it is expected that this can often be done by the library author rather than the user. In some cases the compilers capabilities (by means of extensions and even compiler bugs) have been used to remove the need for registration. However, for portability and in order to test emulation mode on the compilers where it is available but not used by default (VC7.1, GCC etc), #define BOOST_TYPEOF_COMPLIANT [see note *1*]. Testing the emulation is useful, even on compilers that provide a better option, to get a rounded view of the library and its capabilities. I hope you will find time to write a review of the library, which is available at: http://boost-sandbox.sourceforge.net/vault/ , typeof.zip The system has been tested with the following compilers: MSVC 6.5/7.0/7.1/8.0; [see note *1* regarding VC7.0 and VC6.5] GCC 3.4.2 (The following is a quote from : http://www.boost.org/more/formal_review_process.htm ) Here are some questions you might want to answer in your review: What is your evaluation of the design? What is your evaluation of the implementation? What is your evaluation of the documentation? What is your evaluation of the potential usefulness of the library? Did you try to use the library? With what compiler? Did you have any problems? How much effort did you put into your evaluation? A glance? A quick reading? In-depth study? Are you knowledgeable about the problem domain? And finally, every review should answer this question: Do you think the library should be accepted as a Boost library? Be sure to say this explicitly so that your other comments don't obscure your overall opinion. Andy Little Typeof review manager notes: *1* MSVC6.5 and VC7.0 are not supported by the BOOST_TYPEOF_COMPLIANT macro

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Re: [boost] Regressions in your Boost libraries as of 2005-06-30
by David Abrahams 02 Jul '05

02 Jul '05

Douglas Gregor <dgregor(a)cs.indiana.edu> writes: > You are receiving this report because one or more of the libraries you > maintain has regression test failures that are not accounted for. > A full version of the report is sent to the Boost developer's mailing > list. What's going on here? Is intel-win32-8_1 a new platform? A couple of days ago I only had a few gcc-3.3.6-linux regressions to deal with. > There are failures in these libraries you maintain: > iterator (2) > python (56) > > |iterator| > filter_iterator_test: intel-win32-8_1 > lvalue_concept_fail: intel-win32-8_1 > > |python| > andreas_beyer: intel-win32-8_1 > args: intel-win32-8_1 <snip> -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[logging] flushing logs
by Greg Landrum 02 Jul '05

02 Jul '05

I'm just getting started with John Torjo's logging library. So far the library looks really useful, but I'm having problems understanding the timing/sequencing of output by the logging objects. I'm trying to get the logs to dump their output to std:cerr immediately: // ----------------------------- #include <iostream> #include <boost/log/log.hpp> #include <boost/log/functions.hpp> namespace logging = boost::logging; BOOST_DECLARE_LOG(cerrLog); BOOST_DEFINE_LOG(cerrLog,"cerrLog"); void write_to_cerr(const std::string &, const std::string &msg) { std::cerr << msg; std::cerr.flush();} int main(){ logging::add_modifier("cerrLog",logging::prepend_time("[$hh:$mm:$ss] "), logging::DEFAULT_INDEX-10); logging::add_appender("cerrLog",write_to_cerr,logging::DEFAULT_INDEX+1); std::cerr << "1" << std::endl; BOOST_LOG(cerrLog) << "2" << std::endl; std::cerr << "3" << std::endl; BOOST_LOG(cerrLog) << "4" << std::endl; } // ----------------------------- However, the output from running this is always something like: 1 3 [14:56:35] 2 [14:56:35] 4 So the logger output is "late". Is there some flag I can set (or appender I can use) that will force output to go to the target streams immediately or is this outside the design of the logging library? In the event that it matters: I'm using version 1.33 of the logging library and I've tested this on both Windows (vs .net 2003) and Linux (g++ v3.2). Thanks, -greg

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[Boost-bugs] [ boost-Bugs-1231573 ] sorry, unimplemented: call_expr cannot be mangled
by SourceForge.net 02 Jul '05

02 Jul '05

Bugs item #1231573, was opened at 2005-07-02 20:20 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1231573&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: type_traits Group: None Status: Open Resolution: None Priority: 5 Submitted By: Mattias Ellert (mattiasellert) Assigned to: John Maddock (johnmaddock) Summary: sorry, unimplemented: call_expr cannot be mangled Initial Comment: [ellert@ellert boost-test]$ rpm -q boost boost-1.32.0-5.fc3 [ellert@ellert boost-test]$ gccxml --version GCC-XML version 0.7.0 [ellert@ellert boost-test]$ gccxml -fxml=test.xml -I. test.h /usr/include/boost/tuple/detail/tuple_basic.hpp:311: sorry, unimplemented: call_expr cannot be mangled due to a defect in the C++ ABI If I apply the attached patch to boost/type_traits/config.hpp it works: [ellert@ellert boost-test]$ gccxml -fxml=test.xml -I. -Ipatched test.h [ellert@ellert boost-test]$ (I have removed the "xml_find_template_parm encountered unsupported type" messages in the output above for clarity.) The files used in the example are attached in the tarfile. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1231573&group_… ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Boost regression notification (2005-07-02)
by Douglas Gregor 02 Jul '05

02 Jul '05

Boost regression test failures ------------------------------ Report time: 2005-07-02T16:04:24Z This report lists all regression test failures on release platforms. WARNING: The following libraries have failing regression tests but do not have a maintainer on file. Once a maintainer is found, add an entry to libs/maintainers.txt to eliminate this message. random preprocessor io Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/issues… 287 failures in 12 libraries: date_time (1) io (1) numeric/ublas (12) preprocessor (1) program_options (12) python (4) random (2) serialization (233) spirit (7) test (6) thread (2) wave (6) |date_time| testlocal_time_input_facet: cw-9_4 |io| ios_state_unit_test: intel-win32-8_1 |numeric/ublas| test1: cw-9_4 cw-9_4 intel-win32-8_1 intel-win32-8_1 test3: cw-9_4 cw-9_4 test4: cw-9_4 cw-9_4 test5: cw-9_4 cw-9_4 test6: cw-9_4 cw-9_4 |preprocessor| seq: cw-8_3 |program_options| cmdline_test: vc-7_0 cmdline_test_dll: mingw-3_4_2 vc-7_0 parsers_test: vc-7_0 parsers_test_dll: vc-7_0 positional_options_test_dll: mingw-3_4_2 unicode_test: vc-7_0 unicode_test_dll: cw-9_5-darwin gcc-3_3-darwin vc-7_0 variable_map_test: vc-7_0 variable_map_test_dll: vc-7_0 |python| extract: gcc-3.3.6-linux list: gcc-3.3.6-linux operators: gcc-3.3.6-linux slice: gcc-3.3.6-linux |random| random_test: intel-win32-8_1 intel-win32-8_1 |serialization| test_array_text_archive_dll: cw-9_5-darwin test_array_text_warchive_dll: cw-9_5-darwin test_array_xml_archive_dll: cw-9_5-darwin test_array_xml_warchive_dll: cw-9_5-darwin test_binary_text_archive_dll: cw-9_5-darwin test_binary_text_warchive_dll: cw-9_5-darwin test_binary_xml_archive_dll: cw-9_5-darwin test_binary_xml_warchive_dll: cw-9_5-darwin test_class_info_load_binary_archive: gcc-3.3.6-linux gcc-3.4.4-linux test_class_info_load_binary_archive_dll: gcc-3.3.6-linux gcc-3.4.4-linux test_class_info_load_text_archive: cw-9_5-darwin gcc-3.3.6-linux gcc-3.4.4-linux test_class_info_load_text_archive_dll: cw-9_5-darwin gcc-3.3.6-linux gcc-3.4.4-linux test_class_info_load_text_warchive: cw-9_5-darwin gcc-3.3.6-linux gcc-3.4.4-linux test_class_info_load_text_warchive_dll: cw-9_5-darwin gcc-3.3.6-linux gcc-3.4.4-linux vc-6_5 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test_split_text_archive_dll: cw-9_5-darwin test_split_text_warchive_dll: cw-9_5-darwin test_split_xml_warchive_dll: cw-9_5-darwin test_tracking_text_archive_dll: cw-9_5-darwin test_tracking_text_warchive_dll: cw-9_5-darwin test_tracking_xml_warchive_dll: cw-9_5-darwin test_variant_text_archive_dll: cw-9_5-darwin test_variant_text_warchive_dll: cw-9_5-darwin test_variant_xml_archive_dll: cw-9_5-darwin test_variant_xml_warchive_dll: cw-9_5-darwin test_vector_text_archive_dll: cw-9_5-darwin test_vector_text_warchive_dll: cw-9_5-darwin test_vector_xml_archive_dll: cw-9_5-darwin test_vector_xml_warchive_dll: cw-9_5-darwin |spirit| bug_fixes: cw-9_5-darwin bug_fixes_debug: cw-9_5-darwin if_p_int_as_condition_test: vc-8_0 numerics_tests: gcc-3.2.3-linux numerics_tests_debug: gcc-3.2.3-linux owi_mt_tests: cw-9_4 gcc-3_3-darwin |test| errors_handling_test: cw-9_5-darwin vc-8_0 test_fp_comparisons: borland-5_6_4 test_tools_test: cw-9_4 cw-9_4 cw-9_5-darwin |thread| test_read_write_mutex: borland-5_6_4 test_thread: vc-7_0 |wave| testwave: cw-8_3 cw-9_5-darwin gcc-3.2.3-linux gcc-3.3.6-linux vc-7_1 vc-8_0

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[Spirit] Help on Regresions for 1.33
by Joel de Guzman 02 Jul '05

02 Jul '05

Hi there, I posted this to Spirit-dev list this morning! I'm still awaiting replies. I am posting this here so I can have a broader audience to ask for help :-) There are still 5 remaining regressions for Spirit. |spirit| bug_fixes: cw-9_5-darwin bug_fixes_debug: cw-9_5-darwin numerics_tests: gcc-3.2.3-linux numerics_tests_debug: gcc-3.2.3-linux owi_mt_tests: gcc-3_3-darwin I don't have access to these platforms at the moment. Can anyone out there help out? Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/issues… Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net

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Re: [boost] Library Proposal: Boost.Geom 2D and 3D Geometric Primitives
by Anis Benyelloul 02 Jul '05

02 Jul '05

> Sérgio Vale e Pace wrote: > graphical libraries usually are incompatible and sometimes even > "unusual" for a reason, performance, when you´re processing lots and > lots of points per second, the simple act of calling a non inline > function is too much overhead. I totally agree with you. But, who said that my code was calling non-inline functions ? > Don´t take me wrong I also believe that > a "unique" implementation for points would be great, but such > implementation is not trivial. Sorry, I actually don't beleive so. I do not intend to create just one more implementation for points and rectangles, I want to give points and rectangles of *others* the same inteface. Yes, after having specialized some traits class you'll be able to write : geom::point<QPoint> pt; // use QPoint as an implementation geom::box<SDL_Rect> bx; // use SDL Rect as an implementation // Now mix ! bx+=pt; // !! // And still be able to extract the QPoint out of pt; QDrawPoint(pt.impl()); SDL_UpdateRect(&(bx.impl()); // And the SDL_Rect out of bx, at no cost ! > I´m not sure about the internals of > your implementation, Then you should check the 'Boost Sandbox File vault' for a file named geom.zip and make your own opinion. Reading through the documentation should give a better idea of the general "spirit" of the library. -- Anis Benyelloul -- Anis Benyelloul benyelloul(a)mailbolt.com -- http://www.fastmail.fm - mmm... Fastmail...

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[Boost-bugs] [ boost-Support Requests-1231445 ] lambda vs pure virtual functions
by SourceForge.net 02 Jul '05

02 Jul '05

Support Requests item #1231445, was opened at 2005-07-02 14:09 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=1231445&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 Submitted By: SP (sw_creator) Assigned to: Nobody/Anonymous (nobody) Summary: lambda vs pure virtual functions Initial Comment: Hello all ! i tried to complile this code: ----------------------- namespace Filter{ class ResultType {...}; class SubExpression { public: virtual ResultType Result()=0; }; typedef boost::shared_ptr<SubExpression> SPtrSubExpression; ............ void F() { namespace la=boost::lambda; ResultType r; vector<SPtrSubExpression> v; .................................. vector<SPtrSubExpression>::const_iterator i=find_if(v.begin(), v.end(), la::bind(&SubExpression::Result, *la::_1)==r); } } ------------------------- and I received error: c:\Program Files\boost-1-32-0\boost\tuple\detail\tuple_basic.hpp(419): error C2259: 'Filter::SubExpression' : cannot instantiate abstract class complier :VC++ 7.1 boost 1.32.0 what's wrong? thanks. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1231445&group_… ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Re: [boost] Library Proposal: Boost.Geom 2D and 3D GeometricPrimi tives
by Martin Bonner 02 Jul '05

02 Jul '05

----Original Message---- From: Anis Benyelloul [mailto:benyelloul@mailbolt.com] > " There is no such a thing as a 2D point, There is even no such a > thing as 2D, the world is 3D, and all points are 3D. Now, some point > are always located on Z=0 plan and don't need to actually store their > Z attribute, we call them 2D points." Actually one of the current popular physical theories is that the world is 11D (or is it 15?). [Snip] >> Mixing 2D and 3D points doesnt actually happen in my experience. >> They live in separate spaces. > Like I say, 2D points are elements of IRxIR which is U which is part > of IRxIRxIR which is the set of all 3D points. It just a matter of > how you look at things .. Yes, but insisting that people consider 2D points a subset of 3D points (rather than a different concept which is isomorphic with a subset of 3D points), is probably a mistake. -- Martin Bonner Martin.Bonner(a)Pitechnology.com Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ, ENGLAND Tel: +44 (0)1223 441434

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