July 2007 - Boost - lists.preview.boost.org

Trac bugs - by assignee
by Marshall Clow 14 Jul '07

14 Jul '07

[ 300 open tickets today, 299 yesterday ] If you are maintaining a library, and have not logged into the trac system at <http://svn.boost.org/trac/boost/>, please do so ASAP. Until you do that, no tickets can be assigned to you, and will remain under "None". Instructions on working with tickets can be found at: <http://svn.boost.org/trac/boost/wiki/TicketWorkflow> 26 doug_gregor 23 grafik 21 bemandawes 18 johnmaddock 18 None 15 jsiek 15 az_sw_dude 14 vladimir_prus 13 rogeeff 12 dave 11 turkanis 9 agurtovoy 8 ramey 7 speedsnail 7 samuel_k 7 pdimov 6 shammah 6 nesotto 6 jbandela 6 anthonyw 5 witt 4 urzuga 4 nobody 4 mark_rodgers 4 fcacciola 4 djowel 3 jmaurer 3 ebf 3 dlwalker 3 danielw 2 hubert_holin 2 alnsn 1 nmusatti 1 mistevens 1 kevlin 1 hkaiser 1 garcia 1 eric_niebler 1 dgregor 1 danieljames 1 asutton 1 aaron_windsor 1 <Blank> None 1092 [Boost.Filesystem] Program can't run under Win 98 None 1090 scoped_file class that deletes file at end of scope None 1089 missing boost::serialization::make_nvp in pointer container library None 1080 boost::interprocess win32 global file mapping issue None 1079 boost-1.34.0 fails to compile. concept checks not satisfied. None 1074 FreeBSD specific patches to boost 1.34.0 None 1070 [iostreams]boost\iostreams\copy.hpp line80 copy_impl None 1068 Mersenne twister disables streaming for Visual C++ None 1059 random_on_sphere can be made 10 times faster! None 1033 iostreams::restrict doesn't work on an iostreams::file_source None 1023 inspect None 1006 No mingw.jam None 1003 [iostreams] copy-paste error in typedefs for wchar multichar_filters None 1002 [iostreams] close_impl<closable_tag> does not comply with spec None 991 [pool] None 982 x64 documentation for windows None 980 boost.format vc8/win32 compilation warning None 960 [random] lognormal_distribution problem <Blank> 1011 amd64: #error Boost.Numeric.Interval: Please specify rounding control mechanism. aaron_windsor 778 top-level configure is broken agurtovoy 1051 MPL header ordering triggers bug agurtovoy 1049 Getting mpl/has_xxx.hpp to compile on AIX agurtovoy 1001 gcc 4.1.2 segfaults on mpl/test/apply.cpp agurtovoy 861 [mpl] Detect nested template members with has_template_xxx agurtovoy 816 duplicat initial members -> erase_key postcond. fail agurtovoy 761 [mpl] evc4 port agurtovoy 640 documentation mistake agurtovoy 637 Adjusts mpl::pair concept to be compatible with STL pairs agurtovoy 588 mpl::remove compile error with gcc 4.1.0 alnsn 839 lexical_cast - local variable shadow patch alnsn 754 boost::any - typeid comparison across shared boundaries anthonyw 1053 Error using boost::mutex and C++/CLI anthonyw 659 provide an abstract "Task" type based on Boost.Threads anthonyw 881 errors when build with Apache stdcxx anthonyw 876 xtime documentation incomplete anthonyw 868 [thread] thread_specific_ptr::element_type ? anthonyw 802 [thread] MSVS: Allow use of thread headers with /Za asutton 693 Add clique detection algorithms DFMax_ Bron-Kerbosch az_sw_dude 1078 from_iso_string cannot read the output from to_iso_string az_sw_dude 1028 typo in boost header: date_time/time_defs.hpp az_sw_dude 224 Extensions to std::string: compareIgnoreCase()_ trim()_ ... az_sw_dude 187 locale az_sw_dude 17 Socket wrapper class az_sw_dude 890 date_time library supports only the current dst rule az_sw_dude 889 Insane Dependencies az_sw_dude 827 Unused variable in format date parser az_sw_dude 642 operator<< for gregorian::date_duration not found az_sw_dude 614 new timezone db file for #1471723 - 2007 DST support az_sw_dude 605 support new 2007 DST rules for timezone db az_sw_dude 604 from_ftime incorrectly processes FILETIME filled with zeros az_sw_dude 596 make timezone csv file C/C++ compatible az_sw_dude 316 date_time type conversion warning az_sw_dude 287 wrong usage of ios_base::narrow bemandawes 1073 operations.cpp_ dummy_first_name lifetime bemandawes 1065 cannot find -lboost_filesystem bemandawes 1061 boost::filesystem::basic_recursive_directory_iterator fails on empty directories. bemandawes 1014 rename throws an exception that is not documented bemandawes 995 'multiply defined symbols' when including <boost/filesystem.hpp> in different source files bemandawes 897 exists() throws exeption on existing but locked file on wind bemandawes 842 typo in auto_unit_test.hpp Revision 1.17 bemandawes 824 BOOST_IOSTREAMS_HAS_LSEEK64 on Mac OS X bemandawes 823 Seekable file_descriptor_source /sink? bemandawes 800 [filesystem] chdir() bemandawes 752 directory_iterator doesn't work with catch bemandawes 680 significantly different timer class behaviour on Win and Lin bemandawes 662 [filesystem] portable_posix_name() may fail on premain call bemandawes 621 filesystem::path as a template bemandawes 607 Log level names wrong in documentation bemandawes 600 VC8 can't find windows.h even though environment is correct! bemandawes 590 mkstemp bemandawes 559 linker error mingw 3.4.5 bemandawes 366 handle double '/' in the boost::filesystem bemandawes 294 unicode support in boost::filesystem bemandawes 222 Code analysis_ flaw detection_ debugging danieljames 1064 problem on platforms with no errno.h header file danielw 1054 Parameter takes an "infinite" amount of time to compile with the Intel compiler. danielw 1044 Argument pack inaccessable in a functions return type danielw 863 [parameter] fix operator|| for lazy binding dave 1085 Python rules for compiling in Mac OS X dave 1066 Patch to make Boost.Python compile on SunCC dave 1027 [ptr_container] optional serialization support dave 1020 Boost.Iterator proposal to add is_constant_iterator dave 1019 iterator_facade::pointer should be the return type of operator-> (DR 445) dave 1010 linking boost.python on freebsd dave 918 __doc__ strings dave 916 BPL Support for Python Callable Objects dave 910 gcc strict-aliasing problems with python dave 903 inconsistent usage of function pointer typedefs dave 865 Use of C++0x keyword as identifier dave 857 add shared_ptr< const T> support dgregor 987 configure passes wrong toolset to bjam djowel 664 crash in boost::spirit::parse djowel 543 Embedded python won't compile djowel 314 spirit insert_key_actor.hpp djowel 241 Miss " = ParserT()" dlwalker 766 "Bug" in comment (x2) dlwalker 653 [integer] add support for integers longer than long dlwalker 613 boost/crc.hpp uses non-standard conforming syntax doug_gregor 1087 Mismatch between BBv2 and bjam toolsets in configure script. doug_gregor 1076 compile error: disconnecting struct with operator()() doesn't work in VS2005 SP1 doug_gregor 1072 assertion failed in dijkstra algorithm doug_gregor 1067 Function needs to use pass-by-reference internally doug_gregor 1021 [Graph][reverse_graph] Problem using reverse_graph adapter with an adapted user defined graph doug_gregor 954 boost::dynamic_properties has no copy-constructor doug_gregor 891 Bunch of compilation error reported while using function.hpp doug_gregor 870 boost::graph::graph_utility.hpp is_connected() bad call doug_gregor 862 [utility] Make result_of handle lambda expressions doug_gregor 852 Problem with Boost and GCC 4.1 doug_gregor 829 Implicit graph not implement doug_gregor 746 max flow with lower bounds (capacities) doug_gregor 738 Memory leaks with signal::connect? doug_gregor 736 Const correctness violation doug_gregor 735 Fruchterman-Reingold grid performance can be improved doug_gregor 733 Numbered headers don't work with "preferred" syntax doug_gregor 732 Johnson All-Pairs needs better "no path" information doug_gregor 708 Dijkstra no_init version should not require VertexListGraph doug_gregor 556 Bundled graph properties doug_gregor 447 reverse_graph and constness of property maps doug_gregor 403 Document copy_component doug_gregor 402 random_vertex/random_edge are unnecessarily inefficient doug_gregor 395 BGL graph types do not support allocators doug_gregor 375 LEDA graph adaptors do not handle hidden nodes properly doug_gregor 373 LEDA graph adaptors for undirected graphs doug_gregor 372 adjacency_matrix should model BidirectionalGraph ebf 993 Variant should use least common multiple of alignments_ rather than maximum ebf 965 [doc] boost::variant tutorial - final example uses v1_v2 should be seq1_seq2 ebf 547 [variant] Compile time checked getter eric_niebler 1071 Request for BOOST_REVERSE_FOREACH and rationale fcacciola 818 No zero-argument in_place() fcacciola 765 optional documentation fcacciola 617 Numeric Conversion Documentation minor bug fcacciola 282 boost::optional<enum> fails with /CLR garcia 1045 [multi_array] Need a proper swap operation grafik 1091 Build.bat does not autodetect msvc on 64-bit Windows when building bjam grafik 1088 Docs for template escape feature. grafik 1041 Cygwin requires PATH setting. grafik 1040 boost.devel archive at ActiveState disconnected grafik 1031 AmigaOS fixes for bjam grafik 989 Boost build does not support building universal binaries on macintosh grafik 714 [jam] HardLink rule on NT platform grafik 121 toolset initialization grafik 94 Better reporting of failed expectation. grafik 93 Testing problems on AIX and OSF grafik 1062 Cygwin install stage fails with combination of patches grafik 977 bjam crashes when compiled with gcc 4.2 grafik 959 linking fails when Boost is compiled with STLport 5.1.* on Linux (names mismatch) grafik 896 <native-wchar_t>off does not work when build with vc-8.0 grafik 798 bjam: always define OSPLAT grafik 721 Generated files "@()" don't work in regular expressions. grafik 683 libraries won't build grafik 616 Boost Jam_ and non english directorys grafik 552 Building universal binary on MacOSX grafik 546 boost.build needs fixes for HP/UX grafik 497 Unable to build boost with Dinkumware STL version 4.02 grafik 481 Linker Problems with VC .NET 2003 / STLPort / Boost grafik 431 boost jam problem with parallel builds hkaiser 1077 Spirit integer parser does not always detect integer overflow hubert_holin 647 octonion documentation bug hubert_holin 162 Cannot compile octonion_test.cpp because of bug in sinc.hpp jbandela 665 bug in char_separator jbandela 501 token_iterator::at_end() result is inversed jbandela 306 Visual C++ "Language Extensions" support jbandela 283 Compiler error for tokenizer on Solaris jbandela 279 SLOOOWW tokenizer compilation on VC++6.0 jbandela 259 Problem compiling :/ jmaurer 920 Proposed extension to random library jmaurer 819 uniform_int<> with type's maximum availaible range error jmaurer 351 Diff in state of mersenne_twister gen between GCC3.41 & CW9 johnmaddock 1083 boost_regex 1.34.0 uses ICU library without linking to it johnmaddock 1081 Empty string rejected as perl-style regex johnmaddock 1075 [doc] incorrect comment johnmaddock 1008 Undocumented type traits. johnmaddock 905 Assertion failed in token_iterator.hpp johnmaddock 871 Problem build boost 1.33.1 on Aix 4.3.3 johnmaddock 883 errors when build with Apache stdcxx johnmaddock 812 Crash on RH machine with gcc < 3.4 johnmaddock 775 Warnings on MSVC 2005 johnmaddock 764 [regex] add support for a BOOST_NO_CREGEX mode johnmaddock 679 regex - perl syntax affects what gets matched johnmaddock 633 [config] evc4 port johnmaddock 591 make portable stdint.h from boost code johnmaddock 540 Please add support for Borland C++ Builder 2006 johnmaddock 502 Problem running configure for unsupported platform johnmaddock 492 Adding boost::is_complex to type_traits.hpp johnmaddock 360 Regex johnmaddock 315 Implement operator[] for Tokenizer jsiek 900 graphml reader namespace handling is broken jsiek 875 No iterator based constructor for adjacency_matrix jsiek 815 remove_edge core dumps on self-circle jsiek 813 concept_check.hpp unused variable warning jsiek 694 Add Maximum Common Subgraph (MCS) algorithm jsiek 636 strange compiling problem for transitive_closure jsiek 580 Max Flow Algorithm jsiek 575 Calling subgraph::global_to_local on a root graph jsiek 541 [concept_check.hpp] remove unused variable warning in msvc jsiek 416 Spelling of Edmonds-Karp-Algorithm jsiek 193 Check ordering for mutexes jsiek 182 Support aspect-orientation jsiek 116 creating my own properties jsiek 100 more use of the concept "allocator" jsiek 69 Boost with Dinkumware C++ Library !? kevlin 913 Specialization of lexical_cast mark_rodgers 821 allow_unregistered improvement mark_rodgers 558 add database library? mark_rodgers 87 function to get the size of a array mark_rodgers 30 parser mistevens 688 ublas: bug in mapped_vector_of_mapped_vector nesotto 807 boost::assignment documentation: mathematical "typo" nesotto 730 The ptr_map iterator cannot be dereference to value type nesotto 723 local_time_facet error in VS2005 Win2003 nesotto 624 bug in boost::range_detail nesotto 518 [Boost.Range]boost::const_begin calls non-qualified 'begin' nesotto 471 boost.range and "const char[]". nmusatti 285 Borland compiler error with Pool_ boost::pool_allocator nobody 930 iostream and zlib nobody 922 Lexical cast and wide characters nobody 884 [iostreams] workaround for the boost + stdcxx on MSVC 7.1 nobody 795 [ublas] vector::back() pdimov 1084 atomic_count_gcc.hpp tries to #include nonexistant header pdimov 1069 _InterlockedExchange_ _InterlockedExchangeAdd have wrong signature pdimov 997 error in boost::bind doc pdimov 911 [bind] inline placeholder macro pdimov 810 support for weak_ptr binding pdimov 445 Can't delete automatically in circularly included object. pdimov 398 Support for embedded VC++ 4.0 ramey 1086 Serialization of weak_ptr produces invalid XML ramey 1038 "<" and ">" should be excaped in xml_oarchive ramey 1036 assert failure in oserializer.hpp:418 ramey 969 basic_binary_iprimitive::load_binary bug ramey 968 xml_grammar - incorrect define char ramey 961 boost::basic_binary_oprimitive not instantiated correctly ramey 874 Ability to partially specialize implementation_level ramey 878 error C2039: 'mbstate_t' : is not a member of 'std' rogeeff 1060 no example sources in online docs for Boost::Test rogeeff 1050 BOOST_CHECK_CLOSE_FRACTION documentation missing rogeeff 1032 typo in Boost.Test documentation rogeeff 1030 execution_monitor.ipp #warning directive breaks compilation on MSVC 8.0 rogeeff 999 prg_exec_fail3 fails on release variant rogeeff 998 prg_exec_fail2 fail on ppc rogeeff 962 Missing links in Test library documentation rogeeff 956 Doc error in test examples. rogeeff 893 grammatical error in error message rogeeff 847 [Test Library] How to init/free a singleton rogeeff 762 [test] evc4 issue with SEH support rogeeff 747 failing on 6 targets in MacOS X rogeeff 645 [test] no eh exception handling functions on evc4 samuel_k 859 boost::format ignores a user defined locale samuel_k 849 boost::format and operator priority rule samuel_k 713 Boost.Format doesn't work on MSVC with /vd2 compiler option samuel_k 704 format zero length string msvc-8 samuel_k 585 64 bit compile warning/error for boost::format samuel_k 570 boost::format parse method doesn't work samuel_k 493 format: assert when parsing invalid pattern shammah 840 pool allocator - local variable shadow patch shammah 836 warning using pool.hpp shammah 386 boost::pool_allocator breaks with vector of vectors shammah 290 perfomance: memory cleanup for pool takes too long shammah 284 pool::purge_memory() does not reset next_size shammah 88 ct_gcd_lcm.hpp compilation error speedsnail 615 thread identification and getting the id speedsnail 204 Add a monitor class speedsnail 194 Exchange results between several thread calls speedsnail 174 cooperation with ACE framework speedsnail 173 more synchronization primitives for the threads classes speedsnail 172 cooperation with ZThread package speedsnail 171 class for function calls that are not thread safe turkanis 869 [iostreams] patch for building by BBv2 turkanis 856 iostreams file_descriptor::write fails under Win32 turkanis 822 Incorrect usage of bad_write()_ bad_seek() etc. turkanis 817 Performance problem in iostreams turkanis 791 iostreams::tee_filter is for output only turkanis 786 bug in iostreams/copy.hpp line 81 turkanis 699 Changing size of memory-mapped file on Windows turkanis 586 iostreams // file_descriptor::seek BUG on files > 4 GB turkanis 579 boost.iostreams file_descriptor and sharing turkanis 525 problem with boost::iostreams when compiled with Visual C++ turkanis 484 Boost.Iostreams and newline translation urzuga 864 [lambda][utility] Make lambda support result<> urzuga 781 Lambda: (_1 + "y")(string("x")) Doesn't Compile urzuga 574 [boost::lambda] Compile error with libstdc++ debug mode urzuga 426 lambda vs pure virtual functions vladimir_prus 1058 Cygwin libraries & GNU libtool vladimir_prus 1055 boost build system uses wrong `ar` for cross compilation. vladimir_prus 1042 Build: Incorrect parameters for IA64 architecture in MSVC toolset vladimir_prus 985 Free features don't work when building boost vladimir_prus 879 Building Boost with Apache C++ Standard Library (STDCXX) vladimir_prus 853 path with spaces not always handled vladimir_prus 428 Please add support for PDSK compilers for x64 and IA64 vladimir_prus 850 program_options strips off escaped quotes in some situations vladimir_prus 808 [program_options] parse_config_file documentation bug vladimir_prus 689 [program_options] Endless loop with long default arguments vladimir_prus 674 find-library for boost decorated names vladimir_prus 644 Boost.Build v2 build script help for evc4 vladimir_prus 469 multitoken broken vladimir_prus 342 program_options Can one have options with optional values? witt 1046 Boost.Python quickstart instructions mention nonexistent target witt 973 zip_iterator has value_type == reference witt 957 The "Getting Started" page does not mention the stdlib option witt 834 Homepage regression links witt 145 filter iterator adaptor should be able to be bidirectional -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

1 0

Interest in tensor library?
by Jeremy Bruestle 14 Jul '07

14 Jul '07

Greetings, I have developed a C++ tensor library using template expressions which allows Einstein summation convention to be used to describe mathematical operations on tensors in C++. This allows a great simplification in syntax, while retaining execution speeds identical to hand optimized C code in most cases. An example of the syntax is: // Declare three rank 2 tensors (rank = # of dimensions) of doubles with sizes of // 6 x 5, 6 x 10, and 10 x 5 respectively tensor<double, 2> A(6, 5); tensor<double, 2> B(6, 10); tensor<double, 2> C(10, 5); // Name three index variable to be used in what follows index_variable<0> i; index_variable<1> j; index_variable<2> k; A[i][j] = 1.0; // Initialize A to all 1's B[i][j] = 4.5; // Initalize B to all 4.5 boost::mt19937 rng; C[i][j] = trand(rng); // Initalize C to uniform random numbers 0-1 C[i][2] = 2.1; // Set row 2 to 2.1 C[2][i] = 5.5; // Set col 2 to 5.5 C[2][2] = 0.0; // Zero out 2,2 A[i][j] = B[i][k] * C[k][j]; // Perform a matrix multiply /* The above line translates roughly as: for(size_t i = 0; i < A.size<0>(); i++) { for(size_t j = 0; j < A.size<1>(); j++) { double total = 0.0; for(size_t k = 0; k < B.size<1>(); k++) total += B[i][k] * C[k][j]; A[i][j] = total; } } */ An unlimited number of dimensions are supported, arbitrary operations are allowed, and for cases where you wish to perform other types of cumulative functions, such as finding the maximum element, a syntax such as: A[i] = max(j, B[i][j]); is allowed. There are lots of other interesting features but I don't wish to make this email too long. As far as efficency, Intel's compiler builds every example I've tried so far into code as good as doing the work by hand. GCC does so for expressions of reasonably complexity, and MSVC's optimizer does alright, but not nearly as well as the others. I was interested in knowing what the interest level of providing such a library as part of boost would be. I've tried to adhere to the boost coding guidelines during the construction. I've been using this library for over 6 months myself for scientific computing. However, I've so far avoiding sending a query to the boost mailing lists as the procedures for submission and review seem quite daunting. I'm usually crushingly busy, and I'm also especially bad at documentation. Still, I thought I would float the idea to guage interest, and also ask if anyone would be interested in helping me through the process somewhat. Thank you for you time. -Jeremy Bruestle

5 4

[IBD] Helping Boost Authors
by Matias Capeletto 14 Jul '07

14 Jul '07

Hello Boosters, We have a new resource at IBD: a section in the project Wiki called "Helping Boost Authors". http://svn.boost.org/trac/boost/wiki/HelpingBoostAuthors This section is a bazaar of friendly hands. We are teachers, experience users, native English speakers and artists. We want to offer our help to Boost authors to improve their documentation. * How to get helped Just send an email to the boost-docs list with your request. We will do our best to help you. * How to help Add yourself as a proofreader, a translator or in the general section if you have others ideas that Boost authors may find useful. The main objective of this new resource is to act as the main connection between Boost authors and some of IBD folks that are eager to help them. We hope this will make healthier the relation between Boost authors and our project. Authors will get helped, and have more time to improve and add new features to their libraries. We will get in touch with you and hopefully learn enough to become a boost author someday. It is a win-win situation. We hope we can make Boost authors life more enjoyable with regards to documentation. Eagerly waiting to help somebody, King regards Matias

1 0

[Report] 0 regressions on RC_1_34_0 (2007-07-14)
by Douglas Gregor 14 Jul '07

14 Jul '07

Boost Regression test failures Report time: 2007-07-13T13:31:36Z 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… No failures! Yay!

1 0

Fwd: RC 1.34.1 bjam build error
by Thomas Witt 14 Jul '07

14 Jul '07

Hi Could somebody confirm this/provide a fix? Thanks Thomas Thomas Witt witt(a)acm.org Begin forwarded message: > From: "Jon Olesberg" <jonathon-olesberg(a)uiowa.edu> > Date: July 12, 2007 6:38:32 AM PDT > To: <witt(a)acm.org> > Subject: FW: RC 1.34.1 bjam build error > > Thomas, > > The issue I reported to you (attached below) persists in RC2. Also, > all of > the references to the Boost version in the Getting Started docs > refer to > 1_34_0. > > Jon Olesberg > > -----Original Message----- > From: Jon Olesberg [mailto:jonathon-olesberg@uiowa.edu] > Sent: Wednesday, June 27, 2007 5:36 PM > To: 'witt(a)acm.org' > Subject: RC 1.34.1 bjam build error > > Thomas, > > In trying out the release candidate, I noticed a problem with the > batch file > that builds the bjam executable on windows. If I execute build.bat > from the > tools\jam\src directory, I get an error: > > --------------------------------------------------------------------- > T:\boost-1_34_1\boost\tools\jam\src>.\build.bat > Setting environment for using Microsoft Visual Studio 2005 x86 tools. > \Microsoft was unexpected at this time. > --------------------------------------------------------------------- > > However, if I specify msvc, things work fine: > > --------------------------------------------------------------------- > T:\boost-1_34_1\boost\tools\jam\src>.\build.bat msvc > ### > ### Using 'msvc' toolset. > ### > > T:\boost-1_34_1\boost\tools\jam\src>rd /S /Q bootstrap > > T:\boost-1_34_1\boost\tools\jam\src>md bootstrap > > ... and so on... > --------------------------------------------------------------------- > > This problem is fixed in CVS head. > > > Jon > > -- > Jonathon Olesberg > Optical Science and Technology Center > University of Iowa > http://www.ostc.uiowa.edu/~olesberg >

6 15

[sandbox][move] move_only test
by Michael Marcin 13 Jul '07

13 Jul '07

Looking at the move_only.cpp/hpp in http://tinyurl.com/2xmhqn it doesn't seem to actually disable copying. Am I missing something? Thanks, Michael Marcin

1 1

[bug report]boost-sandbox.interprocess::mapped_region.hpp
by Wilbur Lang 13 Jul '07

13 Jul '07

Hi, Because of network problem, what I had is a snapshot of CVS-HEAD-07-06-29-0909. If this bug is corrected/reported before, please ignore. in the file /boost/interprocess/mapped_region.hpp line 467, followed is a snip ============================================== //Check for fixed mapping error if(address && (m_base != (void*)address)){ error_info err = system_error_code(); this->priv_close(); // bug here throw interprocess_exception(err); } ============================================== because adjusting mapping address to page size granularity, which may cause m_extra_offset != 0. in mapped_region::priv_close::munmap will restore address with m_base and m_extra_offset. But at line 467, m_base did not be adjusted (it's adjusted at line 472), when priv_close() invoked, we got a wrong address to munmap. I think it affect windows version too (same file at line 309). one possible correction: move line 472~474 to 463 (*nix version). move line 314 to 305 (windows version). Best Regards, Wilbur Lang

2 1

Re: [boost] RFC: Boost.XML API prototype in the sandbox
by Phil Endecott 13 Jul '07

13 Jul '07

Message-ID: <1184343317532(a)dmwebmail.japan.chezphil.org> In-Reply-To: <46977296.8030205(a)sympatico.ca> References: <46977296.8030205(a)sympatico.ca> X-Mailer: Decimail Webmail 3alpha16 MIME-Version: 1.0 Content-Type: text/plain; format="flowed" Stefan Seefeld wrote: > Phil Endecott wrote: >> For example, I >> might need to efficiently find all the <foo> nodes in a large tree. >> How would I do that with your library? > > You'd do an XPath query. I'm pretty sure that libxml2 would visit every node in the tree to do that. With XSLT you can use the "key" mechanism to make this more efficient, but XPath alone doesn't get you that. >> I think that there are a lot of useful techniques that can't be done >> using a libxml2 backend, including the symbol-table idea that I have >> mentioned before and the whole business of pointer semantics i.e. deep >> vs. shallow copy, copy-on-write and so on. > > Right. But I don't see that as a limitation of my approach. Rather, I'd > use a different way to achieve that anyway. Can you elaborate? >>> However, as I tried to point out numerous times, I do believe it is important >>> to be able to bind highly efficient XML library backends, and not reinvent >>> everything from scratch. >> >> There is certainly an opportunity for a C++ XML library that "binds >> highly efficiently to an XML library backend", but I feel that that >> opportunity is already filled by xmlwrapp >> (http://sourceforge.net/projects/xmlwrapp/) and libxml++ >> (http://libxmlplusplus.sourceforge.net/) both of which have quite >> liberal licenses. What does yours offer that they don't? > > I did some work on libxml++ some years ago, but then parted when it became > apparent that libxml++ was to be glued to tightly into GNOME (the choice of > unicode string is fixed, i.e. not parametrized as in my proposal), and other > unfortunate decisions. > Incidentally, the approach I had taken in the way I bind to libxml2 there > was part of an earlier proposal I submitted to boost (many years ago). Then, > people suggested alternatives that eventually let me to the current approach. > May I suggest that you search the boost ML archives to find more details. E.g. these http://thread.gmane.org/gmane.comp.lib.boost.devel/85985 http://thread.gmane.org/gmane.comp.lib.boost.devel/86508 http://thread.gmane.org/gmane.comp.lib.boost.devel/86872 Regards, Phil.

3 2

Re: [boost] [Spirit-general] Spirit Questions
by Jarrad Waterloo 13 Jul '07

13 Jul '07

Thanks, I saw this a long time ago at codeproject also. Is there any real hope in the future that boost::any will take advantage of this implementation? This is related to my original question. While using hold_any, I run into this problem when trying to use BOOST_SPIRIT_DEBUG with a vector of hold_any. binary '>>' : no operator found which takes a right-hand operand of type 'std::vector<_Ty>' (or there is no acceptable conversion) 1> with 1> [ 1> _Ty=boost::spirit::hold_any 1> ] The code I added was as follows std::istream& operator>> (std::istream& i, vector<hold_any>& obj) { return i;//obj.table->stream_in(i, &obj.object); } std::ostream& operator<< (std::ostream& o, vector<hold_any> const& obj) { o << "["; for(size_t i = 0; i < obj.size(); i++) { if(i > 0) o << ","; o << obj[i]; } o << "]"; return o; } -----Original Message----- From: spirit-general-bounces(a)lists.sourceforge.net [mailto:spirit-general-bounces@lists.sourceforge.net] On Behalf Of Hartmut Kaiser Sent: Friday, July 13, 2007 10:01 AM To: 'Spirit General Mailing List' Subject: Re: [Spirit-general] Spirit Questions Joel de Guzman wrote: > > *Question #3 of 3: How do I debug using '#define > BOOST_SPIRIT_DEBUG' > > when using closures with a member of any?* > > > > Any needs stream operators which it doesn't have. I know > this may be > > an idiot question but I am asking it anyway because I tried the > > following 2 and could get neither to work. Any assistance > would be appreciated. > > Well, this is outside the scope of Spirit. I think the proper > forum in this case is, back to the boost list -- just for > this particular case. If I were you, I'd use a boost.variant > instead and use its visitation mechanism to print its > contents. There's really no fool proof way to print a boost > any's contents. FWIW, Spirit2 contains a hold_any class which is: A) faster than Boost.Any, B) supports input/output streaming as long as the elements stored in the hold_any do support streaming as well, C) is otherwise 100% compatible to Boost.Any. Regards Hartmut (BTW, it's here: http://tinyurl.com/242kyt) ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Spirit-general mailing list Spirit-general(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spirit-general

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XML parser
by Anthony Williams 13 Jul '07

13 Jul '07

Hi, Since there's a lot of discussion about XML parsers going on at the moment, I thought I'd mention the axemill XML parser that I've been working on. Development stalled a few years ago, but I just revamped it to work with Boost 1.34, and added a few more features. It's not ready yet, but I would like to submit it to boost when it is. For those interested, it's at http://www.sf.net/projects/axemill It's a full validating parser, and builds a model of the DTD as it gets parsed. It then uses that when building the DOM --- elements don't store their name directly, instead they store a reference to the corresponding entry in the model, which provides the name and additional information like the permitted attributes and the content model. This means that multiple elements with the same name only incur a 4-byte overhead (on my system) rather than storing the full name. There's not currently any support for xpath, xslt or schemas, but they should be able to be added without too much hassle. It is possible to reuse the same model for multiple documents, and the structure allows for validating a freshly-built document as it is constructed --- it won't allow you to create an element not in the model, or add an attribute to an element that the model doesn't specify. That's all the on-the-fly validation it does at the moment, but it wouldn't be too hard to add attribute value checking, and element content checking (though that might be better suited as a post-construction phase). Nodes within the tree are referenced by shared_ptr, though you can construct standalone nodes. Child nodes use a boost::variant to store the possible data types (comment, text, cdata, pi, element), and the interface allows for iteration through the child elements. The intention is to allow separate iteration through all the nodes as well as through the child elements, and also provide a content() function to retrieve the text content. Internally everything is processed using 32-bit Unicode, so input and output has to be converted. I provide convertTo<encoding> and convertFrom<encoding> functions to do this, as well as overloads of some functions that take std::string parameters and convert them using the "default" encoding (currently ascii). There's scope there for reading data of the web using the URIs from public identifiers to retrieve the DTD, for example, but currently the only URI scheme supported is file://. Like I said, it's not ready yet, but it might provide an interesting alternative direction. Anthony -- Anthony Williams Just Software Solutions Ltd - http://www.justsoftwaresolutions.co.uk Registered in England, Company Number 5478976. Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL

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