- Boost - lists.preview.boost.org

Trac open bugs - by assignee
by Marshall Clow 26 Mar '08

26 Mar '08

[ 235 open bugs today, 235 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> and a mapping of user names to "real names" can be found at: <http://svn.boost.org/trac/boost/report/16> Bug summary 23 djowel 21 az_sw_dude 15 vladimir_prus 14 grafik 13 dgregor 13 dave 12 doug_gregor 12 bemandawes 11 no-maintainer 11 agurtovoy 8 anthonyw 7 turkanis 7 jsiek 6 johnmaddock 5 witt 5 igaztanaga 4 ramey 4 matias 4 ebf 3 nesotto 3 nasonov 3 kaalus 3 danielw 3 danieljames 2 shammah 2 samuel_krempp 2 rogeeff 2 pavol_droba 2 marshall 2 jmaurer 2 hkaiser 2 aaron_windsor 1 urzuga 1 t_schwinger 1 speedsnail 1 pdimov 1 garcia 1 fcacciola 1 dlwalker 1 chris_kohlhoff 1 None None 1644 Boost.Test missing documentation file BOOST_CHECK_CLOSE_FRACTION.html aaron_windsor 1622 Adjacency list needs to handle self-edges correctly aaron_windsor 778 top-level configure is broken agurtovoy 1001 gcc 4.1.2 segfaults on mpl/test/apply.cpp agurtovoy 1051 MPL header ordering triggers bug agurtovoy 1099 unable to iterate through a "non-explicitly-declared" mpl::set agurtovoy 1215 Boost 1.34.1_ mpl: Wrong workaround detection using MinGW32 (or.hpp_ line #33) agurtovoy 1317 has_xxx randomly broken in msvc agurtovoy 1469 [mpl] nested typedef of set has two different meanings agurtovoy 1476 always<> is not nullary. agurtovoy 1528 g++ 4.3.0 reports error because of redeclaration of next agurtovoy 1549 Boost.MPL: 'index_of' algorithm is not documented agurtovoy 1568 duplicate include guards agurtovoy 588 mpl::remove compile error with gcc 4.1.0 anthonyw 1154 tss destruction segfaults in conjunction with dlopen/dlclose anthonyw 1168 [thread] tss crashes randomly anthonyw 1268 xtime_cmp changes to deal with overflow were reverted anthonyw 1470 Boost.Thread: Compilation errors with non-__cdecl calling convention anthonyw 1657 Bug in boost::threads sample anthonyw 1713 no definitions for copy ctor and assignment operator for basic_condition_variable anthonyw 876 xtime documentation incomplete anthonyw 881 errors when build with Apache stdcxx az_sw_dude 1028 typo in boost header: date_time/time_defs.hpp az_sw_dude 1078 from_iso_string cannot read the output from to_iso_string az_sw_dude 1098 Urgent libboost-date-time1.33.1 : bugs on ia64 ? az_sw_dude 1147 date_time library contains global #define ERROR az_sw_dude 1160 warning: month_format shadows a member of this az_sw_dude 1162 warning: ticks shadows a member of this az_sw_dude 1289 posix_time::time_facet forgets to pass a_ref argument to base class az_sw_dude 1299 change in typedef stringstream_type in format_date_parser.hpp causing compilation error az_sw_dude 1306 invalid docbook in date_period.xml az_sw_dude 1384 Linking problem with date_time library on Visual C++ 2008 Express az_sw_dude 1386 date_time documentation Jamfile breaks building of boost docs az_sw_dude 1524 format_date_parser.hpp(221) : cannot convert parameter 1 az_sw_dude 1574 operator<< for boost::posix_time::ptime ignores ostream flags az_sw_dude 1674 date_time::date_formatting.hpp: incorrectly formats year using global locale az_sw_dude 1695 add correct namespace to class to fix compilation bug az_sw_dude 287 wrong usage of ios_base::narrow az_sw_dude 316 date_time type conversion warning az_sw_dude 604 from_ftime incorrectly processes FILETIME filled with zeros az_sw_dude 642 operator<< for gregorian::date_duration not found az_sw_dude 889 Insane Dependencies az_sw_dude 890 date_time library supports only the current dst rule bemandawes 1378 filesystem path invalid name for hidden files (LINUX) bemandawes 1389 filesystem::ostream << boost::format generates operator ambigious error (in MSVC++) bemandawes 1458 Darwin Tiger throws std::runtime_error: locale::facet::_S_create_c_locale name not valid bemandawes 1578 bug in readdir_r_simulator() in a multi-threaded environment bemandawes 1583 Serious flaw in boost::filesystem filename handling (opensuse) bemandawes 1589 [filesystem] 'mbstate_t' : is not a member of 'std' bemandawes 1606 filesystem/src/exception.cpp doesn't build with gcc bemandawes 1613 Link Errors against file_system on OS X with Intel Version 10.1 C++ compilers bemandawes 1682 path_traits needs imbue() bemandawes 1701 boost::filesystem::remove_all - segmentation fault with wpath on Linux bemandawes 1716 Nominating changeset [43861] for merge to release branch bemandawes 752 directory_iterator doesn't work with catch chris_kohlhoff 1703 [asio] Compiler warnings on VC8/9 + warning level 4 danieljames 1554 When BOOST_HASH_NO_EXTENSIONS is defined hash doesn't support new string types. danieljames 1555 When BOOST_HASH_NO_EXTENSIONS is defined hash doesn't support boost::system::error_code danieljames 1705 [boostbook] Spaces in reference file names for types like 'long long' danielw 1044 Argument pack inaccessable in a functions return type danielw 1054 Parameter takes an "infinite" amount of time to compile with the Intel compiler. danielw 1097 keyword.hpp generates many warnings C4180: qualifier applied to function type has no meaning; ignored dave 1010 linking boost.python on freebsd dave 1019 iterator_facade::pointer should be the return type of operator-> (DR 445) dave 1085 Python rules for compiling in Mac OS X dave 1179 [boost.python] can not export a union in VC2005sp1 dave 1181 [boost.python] can modify enum value dave 1387 Review / update docs to reflect changes dave 1460 Python classes with multiple bases are convertible only to the first class in the lists dave 1482 boost::python::throw_error_already_set should be marked noreturn dave 1516 [python] Failing VC9 regression tests dave 1599 [python] '_set_se_translator': identifier not found dave 1697 [utility][noncopyable] ADL barrier broken by msvc-9.0 dave 865 Use of C++0x keyword as identifier dave 910 gcc strict-aliasing problems with python dgregor 1009 Improper overflow handling in shortest paths algorithms dgregor 1164 Floyd Warshall broken with unsigned edge weights dgregor 1192 [boostbook] problem when two files have the same name dgregor 1199 configure doesn't work with path containing whitespaces (MacOS X) dgregor 1310 [result_of] const-qualified function pointer doesn't work dgregor 1326 Unable to check graph isomorphism using LEDA adapter dgregor 1391 dominator_tree_test on Borland/CodeGear outputs overly long line dgregor 1395 Write Tests for Python Bindings dgregor 1630 gcc-4.3: adjacency_list.hpp includes deprecated header dgregor 1680 long long and wchar_t support in MPI dgregor 556 Bundled graph properties dgregor 732 Johnson All-Pairs needs better "no path" information dgregor 736 Const correctness violation djowel 1170 Emit Warnings instead of # symbols in the syntax highlighter djowel 1171 Quickbook title output djowel 1172 non-utf djowel 1176 Space after inline code djowel 1206 Escaping from within code? djowel 1273 CR+LF newlines in position_iterator djowel 1276 spirit problem with _GLIBCXX_DEBUG djowel 1277 Closing section like [pre with } causes Quickbok to crash djowel 1280 sections in imported source files get put inside <para> elements in docbook output djowel 1281 Quickbook produces invalid BoostBook/DocBook XML djowel 1324 tuple should have a swap() that operates element-by-element djowel 1396 wrong result_of invocation around transform_view djowel 1436 [quickbook] inline code inside headings djowel 1484 Quickbook produces illegal docbook for some docinfo fields. djowel 1500 [Spirit/Phoenix] C4512 Compiler warnings from VC8 djowel 1570 Some boost headers aren't ready for gcc 4.3 djowel 1600 duplicate include guard djowel 1601 distane of boost::tuple djowel 1607 Tuple Library Documentation Changes djowel 1610 [MSVC/STLport] [tree/common.hpp] Standard library requirements violation(incomplete type as vector parameter) djowel 1614 vector workaround needed for MSVC9 djowel 1617 spirit gcc-4.3 fix djowel 1619 [Fusion] C4512 warnings from VC9 (Visual Studio 2008) dlwalker 613 boost/crc.hpp uses non-standard conforming syntax doug_gregor 1021 [Graph][reverse_graph] Problem using reverse_graph adapter with an adapted user defined graph doug_gregor 1076 compile error: disconnecting struct with operator()() doesn't work in VS2005 SP1 doug_gregor 375 LEDA graph adaptors do not handle hidden nodes properly doug_gregor 402 random_vertex/random_edge are unnecessarily inefficient doug_gregor 403 Document copy_component doug_gregor 447 reverse_graph and constness of property maps doug_gregor 708 Dijkstra no_init version should not require VertexListGraph doug_gregor 733 Numbered headers don't work with "preferred" syntax doug_gregor 735 Fruchterman-Reingold grid performance can be improved doug_gregor 738 Memory leaks with signal::connect? doug_gregor 829 Implicit graph not implement doug_gregor 852 Problem with Boost and GCC 4.1 ebf 1507 [variant] C4512 warnings from VC8.0 ebf 1548 [variant][docs]typo: formal arg_ operand_ should be v in times_two arglist ebf 1654 recursive variants do not handle nested variants correctly. ebf 993 Variant should use least common multiple of alignments_ rather than maximum fcacciola 1666 Visualizer for boost::optional garcia 1581 Boost.MultiArray: Resizing bug if the index is not 0-based grafik 1041 Cygwin requires PATH setting. grafik 1322 trac rejects patch attachment as spam grafik 1417 Regresson tests hang in Darwin (Tiger) grafik 1430 Regression fails under Cygwin grafik 1433 Trac's spam detection rejects too many valid messages grafik 1512 Broken link to vacpp in bjam docs. grafik 1513 Broken link to bcpp in bjam docs. grafik 1571 boost bugtracker displays a patch incorrectly grafik 1576 cannot read non-ASCII output messages grafik 1577 Some commands don't work because hStdInput == 0 grafik 1663 build.bat cannot set/reset ERRORLEVEL grafik 616 Boost Jam_ and non english directorys grafik 959 linking fails when Boost is compiled with STLport 5.1.* on Linux (names mismatch) grafik 986 Problem building Python modules on boost 1.34.0 hkaiser 1079 boost-1.34.0 fails to compile. concept checks not satisfied. hkaiser 1670 wave almost unusably slow on real-world input igaztanaga 1080 boost::interprocess win32 global file mapping issue igaztanaga 1210 interprocess::barrier hangs during second use under linux (boost 1.33.1) igaztanaga 1390 Interpocess: managed shared memory failing completely under OS X igaztanaga 1634 boost::interprocess::vector cannot contain volatile int igaztanaga 1635 Incomplete include guard in boost/intrusive jmaurer 351 Diff in state of mersenne_twister gen between GCC3.41 & CW9 jmaurer 599 uniform_01 copies engine instead of using a reference johnmaddock 1081 Empty string rejected as perl-style regex johnmaddock 1314 Using SSE-intrinsics in VC8 causes static assert in type_with_alignment.hpp johnmaddock 1411 Fix BOOST_PARTIAL_SPECIALIZATION_EXPLICT_ARGS johnmaddock 1446 POSIX API doesn't use C locale johnmaddock 1451 error: use of C99 long long integer constant johnmaddock 1626 [type_traits] "bad_alloc is not a member of std" in has_virtual_destructor_test.cpp jsiek 1531 segfault in dynamic_bitset::reference assign operator jsiek 1540 Poisson distribution very slow for large mean (and may also overflow). jsiek 575 Calling subgraph::global_to_local on a root graph jsiek 636 strange compiling problem for transitive_closure jsiek 815 remove_edge core dumps on self-circle jsiek 875 No iterator based constructor for adjacency_matrix jsiek 900 graphml reader namespace handling is broken kaalus 1184 property_tree assignment (operator) bug kaalus 1604 property_tree xml parser doesn't compile with gcc kaalus 1678 Boost.property_tree::read_xml does not parse UNICODE file with BOMs marshall 1252 [pool] severe overhead with unaligned sizes. marshall 1493 SVN files making it through to install matias 1406 Understanding the Tables outdated matias 1651 incorrect typedefs in examples matias 1676 Dead links on Boost.Test example documentation. matias 1707 small typos in Boost.serialization documentation nasonov 1220 lexical_cast requires RTTI nasonov 1704 [any] 4512 warning from VC8/9 on warning level 4 nasonov 754 boost::any - typeid comparison across shared boundaries nesotto 1629 range/iterator_range.hpp bug nesotto 1675 [range] VC8 - compiler warnings when including range/array headers nesotto 1694 NDEBUG vs. BOOST_ASSERT in iterator_range.hpp no-maintainer 1068 Mersenne twister disables streaming for Visual C++ no-maintainer 1222 lambda::ret<T> should declare result_type. no-maintainer 1270 uniform_smallint doesn't compile with lagged_fibonacci random number generators no-maintainer 1515 [lambda] C4512 warnings from VC8.0 no-maintainer 1544 uniform_01 w/ref template param causes ref to ref error no-maintainer 1546 Method boost::random::uniform_int::operator()(engine_ value) is missing no-maintainer 1572 [lambda] smart pointer const-ness affects its contents no-maintainer 1632 Default Interval rounding policies incomplete no-maintainer 1691 [Random] Brokem MSVC workaround no-maintainer 781 Lambda: (_1 + "y")(string("x")) Doesn't Compile no-maintainer 819 uniform_int<> with type's maximum availaible range error pavol_droba 1152 rle_example fails pavol_droba 1385 begin must be boost-qualified pdimov 1106 shared_ptr<T> should not convert to shared_ptr<U> when T* doesn't convert to U* ramey 1285 [serialization] problem when including shared_ptr_132.hpp ramey 1708 Can't serialize class with private destructor ramey 1711 Boost Serialization export facility broken on gcc 4.1_ 4.2 ramey 1715 gcc-4.3 doesn't compile polymorphic_(i)(o)archive.hpp rogeeff 1383 signal.h features not found on Mac OS rogeeff 1542 [test] compiler errors when building with stdcxx library samuel_krempp 1699 Compile warning about initialization order. samuel_krempp 859 boost::format ignores a user defined locale shammah 290 perfomance: memory cleanup for pool takes too long shammah 386 boost::pool_allocator breaks with vector of vectors speedsnail 1138 Problems with TSS and static thread library t_schwinger 1653 wave executable erroneously required for build of function_types lib turkanis 1523 [iostreams] VC8/VC9 compiler warnings turkanis 1545 [boost/rational.hpp] 'noskipws' is not a member of 'std' turkanis 1579 gzip compressor should model DualUseFilter turkanis 1580 Add static assert to prohibit instantiating a chain with mode dual_use turkanis 1649 Fix definition of JavaScript menu to avoid long chains of functions turkanis 1656 Consider implementing flush() for symmetric filters turkanis 1671 type mismatch of buffer size parameter causes overload resolution to fail urzuga 574 [boost::lambda] Compile error with libstdc++ debug mode vladimir_prus 1132 program_options documentation error. vladimir_prus 1165 more quoting problems vladimir_prus 1274 Useless error message vladimir_prus 1321 invalid docbook in tool documentation vladimir_prus 1527 [program_options] Second (and subsequent) lines in tabbed text not aligned correctly vladimir_prus 1530 Program options documentation - Overview - Syntactic Information example typo vladimir_prus 1537 no value given in 'mysql_password =' vladimir_prus 1584 cryptic bbv2 error building quickbook vladimir_prus 1587 [program_options] crashes if value part missing in external configuration file vladimir_prus 1588 [program_options] crashes if value part missing in external configuration file vladimir_prus 1645 Invalid unicode support for default_value vladimir_prus 1679 added 4-way universal binary support from mac osx (ppc_ ppc64_ i386_ x86_64) vladimir_prus 469 multitoken broken vladimir_prus 689 [program_options] Endless loop with long default arguments vladimir_prus 850 program_options strips off escaped quotes in some situations witt 1046 Boost.Python quickstart instructions mention nonexistent target witt 583 Fixes for build on IBM pSeries for AIX and Linux witt 834 Homepage regression links witt 957 The "Getting Started" page does not mention the stdlib option witt 973 zip_iterator has value_type == reference -- -- Marshall Marshall Clow Qualcomm, Inc. <mailto:mclow@qualcomm.com> The famous British scientist, Lord Kelvin, said: "When you measure what you are speaking about and express it in numbers, you know something about it, but when you cannot (or do not) measure it, when you cannot (or do not) express it in numbers, then your knowledge is of a meagre and unsatisfactory kind."

1 0

[gsoc 2008] Neural Networks library
by Milan Rusev 26 Mar '08

26 Mar '08

Hello, I'm an AI student and I'd like to participate in this year's SoC with an Artificial Neural Networks library. The library will consist of basic elements of a NN: neurons, layers, teaching algorithms, neuron functions (plus common usages: linear, sigmoid, gaussian, winner-takes-all). It will also include the implementation of some popular NNs: Multilayer Perceptron, Hopfield Network, Kohonen Network. I know it's a bit of a high level library, and I'd like some feedback whether it's appropriate for Boost. I also have a question. The proposal on the GSoC 2008 page for the implementation of Fixed Decimal also sounds appealing to me. So should I choose one project and apply for it or should I apply for both of them separately? Milan

6 8

validating explicit-failures-markup.xml?
by David Abrahams 26 Mar '08

26 Mar '08

The comment at the top of explicit-failures-markup implies the following command should work, but it doesn't for me. What am I missing? $ xmllint --valid explicit-failures-markup.xml --schema explicit-failures.xsd explicit-failures-markup.xml:3: validity error : Validation failed: no DTD found ! xsi:noNamespaceSchemaLocation="explicit-failures.xsd"> ^ ... -- Dave Abrahams Boost Consulting http://boost-consulting.com

4 3

Proto review: a humble request
by Eric Niebler 26 Mar '08

26 Mar '08

Proto's review ends this Friday. There's been good discussion, but very few actual reviews. Please consider writing a review, if you haven't already. Thanks in advance, -- Eric Niebler Boost Consulting www.boost-consulting.com

4 7

[1.35][intel-win-10.0] Is this toolset just broken?
by David Abrahams 26 Mar '08

26 Mar '08

http://beta.boost.org/development/tests/release/developer/issues.html looks really suspicious to me. Things are failing that never failed on any recent compiler in the past. When I run the Boost.Python tests locally, I get at least one crash (!) that isn't reflected in the results above, suggesting a codegen bug. I'm trying to figure out how best to address these issues, and am wondering 1. whether all these errors ought to be marked up 2. whether we really ought to be making this compiler a required release platform Thoughts? -- Dave Abrahams Boost Consulting http://boost-consulting.com

3 4

My Proto Review
by Joel de Guzman 26 Mar '08

26 Mar '08

Hi, I'm sorry if this is very late. This month has been a whirlwind for me. So many things happening. ***I vote to accept Proto.*** - What is your evaluation of the design? Proto is very well designed. I've seen it progress through the years. It's very mature and stable now. I've been using it as early as 2005 as a Spirit-2 core library. Spirit-2's design and evolution somehow influenced Proto's design. I'm very happy with Eric's design decisions. Some history... Eric and I had our share of squabbles in the past ;-) related to how I expected Proto to be. I knew from the start that I needed something like it. Joao Abecasis, a Spirit developer, started one like it, from my urging. Fusion was developed, in part, due to the need for manipulation of heterogeneous data structures, specifically for spirit: syntax trees. I recall that our biggest disagreement, and one that we resolved soon enough, was my need for flattened sequences. Eric insisted on presenting the results with no flattening, I wanted flattening. For example, I wanted: a >> b >> c >> d to be a flattened fusion sequence, not a tree. I was reluctant to have Spirit go through a 2-step process that necessitated a conversion from a tree to a fusion-sequence: proto-tree-->fusion-sequence I had code that didn't use Proto, that produced tight code and fast compile times. The challenge was for Eric to beat that or at least come close to its performance. I wanted to take advantage of fusion algorithms to *efficiently* iterate over the sequence. At first, this lead to the development of segmented fusion iterators. Eric actually implemented this: http://lafstern.org/matt/segmented.pdf into Fusion! It was OK and efficient at runtime. Unfortunately, compile time suffered considerably. Our endless discussions culminated with: http://article.gmane.org/gmane.comp.parsers.spirit.devel/2765 Seems some folks were tuning in to our discussions. The C++ version of "Scrap Your Boiler Plate", a very powerful, well studied and widely used design pattern for generic traversal from the Haskell world: http://portal.acm.org/citation.cfm?id=1159861.1159871 references Eric's post above. So far so good, yet, SYB ("Scrap Your Boiler Plate") was not available in a mature form in C++ yet. This then, again, lead to Dan Marsden's proposed traversal library. What Eric ended up doing was to provide a zero-overhead tree structure that's converted very efficiently to a flattened fusion sequence. It was as fast as my non-proto Spirit2 implementation and with some compile time performance hit. In due time, I'll be using Dan traversal library. At any rate, Eric's intuition to not flatten the trees is dead-on correct. It's the right approach. I'm glad that it influenced interesting solutions to interesting generic programming problems. I was happy :-) Proto proved it's worth. Oh, there were more disagreement on things big and small. Development happened in an evolutionary manner spanning years. If you guys are interested in what transpired, it's all archived in the Spirit-devel list. I gave him a very tough time :-) The space here won't do justice to what actually happened, nevertheless, I already did my review a long time ago, spaning years. In the end, Eric pulled it all through. I gave him a very tough time :-) - What is your evaluation of the implementation? A+ - What is your evaluation of the documentation? A+ - What is your evaluation of the potential usefulness of the library? Oh man! - Did you try to use the library? With what compiler? Did you have any problems? Yes. With all compilers required by Spirit. No problems. - How much effort did you put into your evaluation? A glance? A quick reading? In-depth study? Many years of study; from its inception. - Are you knowledgeable about the problem domain? Yes. very. Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net

3 5

[smart_ptr] new shared_from_this behavior with multiple owners
by Frank Mori Hess 26 Mar '08

26 Mar '08

I just want to point out that even with the fix that went in today, the behavior of enable_shared_from_this::shared_from_this when multiple shared_ptrs take independent ownership is inconsistent with the old behavior. The old behavior was that shared_from_this would return a shared_ptr that shared ownership with whichever shared_ptr took ownership of the object last. The new behavior is shared_from_this always returns a shared_ptr that shares ownership with the first shared_ptr to take ownership of the object. The attached example illustrates the difference when compiled against the old lib and svn trunk. I don't want to make a big deal of this, as I actually think the new behavior is more sane, but I thought I should point it out. My preferred solution would be to just point out the change in the next release notes or something like that. -- Frank

2 3

1704 [any] 4512 warning from VC8/9 on warning level 4
by Alexander Nasonov 25 Mar '08

25 Mar '08

Hi, I'm wondering if we care about level 4 MSVC warnings. As far as I remember default warning level is lower and I don't see why boost sources should have MSVC-specific pragmas just to disable level 4 warnings. I'd rather resolved the bug as invalid. As an alternative, we could // Beginning of file #include <boost/config/warnings_off.hpp> ... // end of file #include <boost/config/warnings_on.hpp> and have an option BOOST_CONFIG_TURN_WARNINGS_OFF. Though, I don't know whether it's doable for other compilers. -- Alexander

5 7

[trac] email addresses not mangled
by Maik Beckmann 25 Mar '08

25 Mar '08

Hello, I just reported a bug http://svn.boost.org/trac/boost/ticket/1715 and as I see my email address appears to be not mangled. I guess this is not by intention, so please fix it (I hate S P A M)! Best, -- Maik

3 3

[gsoc2008] Draft proposal for cpp-netlib and pion-net integration
by Divye Kapoor 25 Mar '08

25 Mar '08

Hello developers, I'm attaching below a draft proposal for merging the cpp-netlib and pion-net projects. Its still in the making stage and I would specially like your feedback about the timeline and the deliverables. I've deliberately kept the timeline quite loose to allow for unforseen delays but I really want to get an estimate of how much more can be squeezed into the project without making the it overambitious given the timeframe involved (I'm pretty sure that implementation of rfc1867 would require less than 3 weeks but I would like more feedback on this point). Also, I would like to know if any of the Boost library authors would be interested in mentoring this proposal because without them, this proposal is a sunken ship ;-) Yours sincerely, Divye Kapoor PS: Its not yet in the prescribed format for an application, but there's an almost one to one mapping. ---- Synopsis During the course of the Google Summer of Code, I would like to work on the cpp-netlib [1] and the pion-net [2] projects to ensure that pion-lib HTTP client-server library is seamlessly integrated with the general messaging framework specifed in the cpp-netlib architecture [3]. This will not only address one of the most important use cases of the Boost Asio library as it will provide a general, cross platform implementation of network communication via the the HTTP protocol but it will also lower the entry barrier for creating cross-platform, network aware C++ applications. Project While working on this project, I will have a large codebase to build upon (~ 15000 lines in the pion-net project). To ensure robustness of the code, my first priority will be to create a test suite with Boost.Test and Python (using the BaseHTTPServer module) to ensure standards conforming behaviour of the initial code. After a testing suite is set up and any discovered bugs are removed, I would proceed to refactor the pion-net interface of the library to conform to the interface exposed by the cpp-netlib message classes. This would involve non-trivial changes in the code base as it would require conversion of the pion-HTTP* classes to conform to the transformation layer restrictions of the cpp-netlib classes. This might cause breaking changes to the implementation. All such changes will be documented and appropriate test cases generated. Support for parsing multipart-form data (both encoding and decoding) will then have to be coded in accordance with rfc1867 [4]. Currently, the implementation correctly handles only GET parameters and POST parameters encoded using url-encoding. This creates a limitation of not being able to send and receive files and other such binary chunks of data via a POST request over the network. A correct implementation will enable multiple files potentially as large as 2 GB to be sent and received correctly over the HTTP protocol. Robustness of the code will be a serious challenge in this case as disk file security and large file sizes have to be handled. Ensuring reliable operation in the face of timeouts and incomplete transfer will form an important consideration of this part of the project. This will take up a bulk of the time in the project. The multipart/form-data handling capabilities will then be augmented by support for Compression headers (via gzip compression). This will enable efficient communication on bandwidth constrained networks and will be useful even for simple HTTP requests as this compression will be handled in a transparent manner. Complete support for cacheing will then have to be built in to the HTTP request/response model. In particular, support for the Cache-control directives and Expires directives will have to be built into the client to prevent unnecessary bandwidth usage. Documentation and examples concerning the most common use cases will be created and in case any time is left, a Boost Extension based plugin system will be created to allow easy extension of the HTTP protocol stack to handle custom headers. Timeline Prior to actual coding: April 14-May 26: Finish off examinations at college. Examinations till 13th May. Get familiarized with boost extension, Boost.Test, Boost.Asio, gzip, pion-net and cpp-netlib projects May 26 - July 7: 6 weeks mark July 14: Midterm evaluation 2 weeks - Create a testing suite, ensuring automation and ironing out any unexpected bugs. 2 weeks - Break the old interface and make it conform with the message transform API. 3 weeks - Implement the multipart/form-data encoding and decoding algorithms. Generate test cases. Clean up code July 14-August 11: 1 week - Document all the code changes and the new API to which it conforms. 1 week - Implement the compression header support via optional gzip support 2 weeks - Implement the Cacheing directives. < 1 week - Clean up supporting docs, test cases, etc. I believe that the timeline is flexible enough to handle any unforseen bugs and eventualities that tend to crop up yet is tight enough to keep me busy. Deliverables A feature complete HTTP 1.1 header only implementation conforming to the message <==> rfc data structure mapping of the cpp-netlib project resulting in an integration of the pion-net and cpp-netlib projects released under the Boost Software License. Documentation, Test and Use cases for the most common scenarios will be provided. The library will compile and run successfully on atleast 2 platforms (intended Win32 and linux) and with 2 compilers (gcc 4.2 and MSVC 8) in accordance with Boost portability policies and will follow the Boost naming conventions. Benefits for Boost A network library supporting HTTP(S) and the most common use cases will be ready for review. Learning Experiences in store As a result of this project, I'll gain valuable experience in coding to rfc specifications and gain valuable insight into the working of the HTTP protocol. In addition, I'll get a hands-on experience in working with Boost.Asio and achieve a deeper understanding of the Boost libraries. About Me I'm a 19 year old student from the small town of Jamshedpur, India. I'm pursuing my Integrated Dual Degree course in Computer Science and Engineering (Bachelors) with a Masters specialization in Information Technology at the Indian Institute of Technology, Roorkee. I have a strong algorithmic and coding background. I've been ranked 2nd at the International Informatics Olympiad 2005 and 7th All India at the National Cyber Olympiad 2006. I've been coding in C++ for the past 6 years and I have been using the STL for the past 3 years. Over the past year, I've come to use the Boost.Spirit, Boost.Bind and Boost.Lambda libraries and I have gained valuable experience from them. Now, I wish to make my own contribution to Boost by helping to bring network abstraction to the Boost library. [1] http://sourceforge.net/projects/cpp-netlib/ [2] http://www.pion.org/projects/pion-network-library [3] http://cpp-netlib.wiki.sourceforge.net/Architectural+Documentation [4] http://www.ietf.org/rfc/rfc1867.txt -- Whether the chicken crossed the road or the road moved beneath the chicken depends upon your frame of reference. My official web site: http://www.iitr.ernet.in/studenthomepages/homepages/061305

1 0

[gsoc2008] Database Library (asynchronous)
by Daniel Pfeifer 25 Mar '08

25 Mar '08

Database access has been discussed quite often in the Boost mailing list. I read through the discussions from Oct 2004 and Jul/Aug 2005 and I am well aware of the fact that there is a lot of disagreement concerning the interface presented to the programmer. So I just hope you don't bite my head off if I propose this as a GSoC project. ;) Things I would like to implement: * generic binding of parameters and results (using Boost.Fusion) * asynchronous access (using Boost.Asio) * odbc, postgres, firebird, mysql and sqlite3 backends (using their proper C API) * DATE, TIME and DATETIME fields (using Boost.Date_Time or struct tm) Surely other backends can be added, but these are the ones I am (more or less) familiar with. BLOBs would be interesting to implement but I am afraid time won't permit it. The following code snippet is a quick draft using sqlite3 as a backend. This is not the interface I am going to propose, please read on. boost::asio::io_service io_service; boost::database::sqlite3::connection conn(io_service); conn.open( "testdb" ); std::cout << "client version: " << conn.client_version() << std::endl; std::cout << "server version: " << conn.server_version() << std::endl; boost::database::sqlite3::statement stmt = db.statement(); stmt.prepare( "CREATE TABLE employee" "(id INT,name CHAR(20),salary INT,PRIMARY KEY(id))" ); stmt.execute(); // prepared statement with placeholders stmt.prepare( "INSERT INTO employee (id,name,salary) VALUES (?,?,?)" ); stmt.execute( boost::fusion::make_vector( 27, "Horst Zwiebelhacker", 5000) ); stmt.prepare( "SELECT name, salary FROM employee" ); stmt.execute(); // fetch directly into specified results std::string name; int salary; while( stmt.fetch( boost::fusion::vector_tie(name,salary) ) ) { std::cout << name << " gets " << salary << " pebbles." << std::endl; } The "open", "prepare" and "execute" functions have "async_" counterparts. The sync functions throw exceptions while the async ones pass an error to the bound handle as the first parameter. Both the synchronous and the asynchronous test programs run fine, though they are not thread safe (the final library definitely will be). I checked if it would be straightforward to implement other backends, which turned out to be true for most of them. I struggled with PostgreSQL where the type of the parameters has to be known when the statement is prepared. The syntax suggested by Tito Villalobos for declaring a statement seems to be a better approach (slightly modified by me): statement< parameters<...>, // query/stored procedure parameter types results<...> // recordset column types > my_stmt(connection, query_string); This would make it easier to prepare statements in PostgreSQL and can be a benefit for other backends too. Statements could be automatically prepared when their execute function is called the first time. Finally, variadic templates in C++0x allow to hide the functions boost::fusion::make_vector and boost::fusion::vector_tie from the programmer, which makes the interface much more intuitive. Imagine stmt.execute(27, "Horst Zwiebelhacker", 50000); or while( stmt.fetch(name,salary) ) ... isn't that lovely? Just for clarity: The design I have in mind will provide the programmer with an easy way to use SQL. Still the programmer has to write her own SQL strings. A library which provides STL functionality by abstracting SQL could be built on top of this one. I would like to concentrate on making it asynchronous rather than on the STL part. Cheers. Daniel Pfeifer

9 15

[gsoc2008] Polynomial Library.
by Zero Mind 25 Mar '08

25 Mar '08

Hi everyone. My name is Pawel Kieliszczyk. I'm a student of Wroclaw University of Technology in Poland. My idea for a GSoC project was to biuld an advanced library for polynomial manipulation. Boost offers a simple class with basic operations here: http://svn.boost.org/svn/boost/trunk/libs/math/doc/sf_and_dist/html/math_to… and usefull functions here: http://svn.boost.org/svn/boost/trunk/libs/math/doc/sf_and_dist/html/math_to… John Maddock suggested me via e-mail to improve and extend this library. I would like to introduce to you my proposals. What could be added? - multiplication algorithm using FFT - '/', '/=', '%' and '%=' operators - greatest common divisor of polynomials - factorisation - derivatives and integrals - conversions between various polynomial forms - faster evaluation of a polynomial - finding a polynomial if n points are given (degree of a polynomial is n-1) - I am still thinking. Generally speaking the library would become more advanced. What do you think about this? Please ask also if you have any questions. Pawel Kieliszczyk

5 7

Boost Trie
by chintan rao 25 Mar '08

25 Mar '08

Hi, I would like to know if there is Trie implementation in Boost. If not is it going to implemented soon? Regards, Chintan Rao H

7 19

Trac open bugs - by assignee
by Marshall Clow 25 Mar '08

25 Mar '08

[ 235 open bugs today, 232 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> and a mapping of user names to "real names" can be found at: <http://svn.boost.org/trac/boost/report/16> Bug summary 23 djowel 21 az_sw_dude 14 grafik 13 vladimir_prus 13 dgregor 13 dave 12 doug_gregor 11 no-maintainer 11 bemandawes 11 agurtovoy 8 anthonyw 7 turkanis 7 jsiek 6 ramey 6 johnmaddock 5 witt 5 igaztanaga 4 matias 4 ebf 3 nesotto 3 nasonov 3 kaalus 3 danielw 3 danieljames 2 shammah 2 samuel_krempp 2 rogeeff 2 pavol_droba 2 marshall 2 jmaurer 2 hkaiser 2 aaron_windsor 1 urzuga 1 t_schwinger 1 speedsnail 1 pdimov 1 garcia 1 fmhess 1 fcacciola 1 dlwalker 1 chris_kohlhoff 1 None None 1644 Boost.Test missing documentation file BOOST_CHECK_CLOSE_FRACTION.html aaron_windsor 1622 Adjacency list needs to handle self-edges correctly aaron_windsor 778 top-level configure is broken agurtovoy 1001 gcc 4.1.2 segfaults on mpl/test/apply.cpp agurtovoy 1051 MPL header ordering triggers bug agurtovoy 1099 unable to iterate through a "non-explicitly-declared" mpl::set agurtovoy 1215 Boost 1.34.1_ mpl: Wrong workaround detection using MinGW32 (or.hpp_ line #33) agurtovoy 1317 has_xxx randomly broken in msvc agurtovoy 1469 [mpl] nested typedef of set has two different meanings agurtovoy 1476 always<> is not nullary. agurtovoy 1528 g++ 4.3.0 reports error because of redeclaration of next agurtovoy 1549 Boost.MPL: 'index_of' algorithm is not documented agurtovoy 1568 duplicate include guards agurtovoy 588 mpl::remove compile error with gcc 4.1.0 anthonyw 1154 tss destruction segfaults in conjunction with dlopen/dlclose anthonyw 1168 [thread] tss crashes randomly anthonyw 1268 xtime_cmp changes to deal with overflow were reverted anthonyw 1470 Boost.Thread: Compilation errors with non-__cdecl calling convention anthonyw 1657 Bug in boost::threads sample anthonyw 1713 no definitions for copy ctor and assignment operator for basic_condition_variable anthonyw 876 xtime documentation incomplete anthonyw 881 errors when build with Apache stdcxx az_sw_dude 1028 typo in boost header: date_time/time_defs.hpp az_sw_dude 1078 from_iso_string cannot read the output from to_iso_string az_sw_dude 1098 Urgent libboost-date-time1.33.1 : bugs on ia64 ? az_sw_dude 1147 date_time library contains global #define ERROR az_sw_dude 1160 warning: month_format shadows a member of this az_sw_dude 1162 warning: ticks shadows a member of this az_sw_dude 1289 posix_time::time_facet forgets to pass a_ref argument to base class az_sw_dude 1299 change in typedef stringstream_type in format_date_parser.hpp causing compilation error az_sw_dude 1306 invalid docbook in date_period.xml az_sw_dude 1384 Linking problem with date_time library on Visual C++ 2008 Express az_sw_dude 1386 date_time documentation Jamfile breaks building of boost docs az_sw_dude 1524 format_date_parser.hpp(221) : cannot convert parameter 1 az_sw_dude 1574 operator<< for boost::posix_time::ptime ignores ostream flags az_sw_dude 1674 date_time::date_formatting.hpp: incorrectly formats year using global locale az_sw_dude 1695 add correct namespace to class to fix compilation bug az_sw_dude 287 wrong usage of ios_base::narrow az_sw_dude 316 date_time type conversion warning az_sw_dude 604 from_ftime incorrectly processes FILETIME filled with zeros az_sw_dude 642 operator<< for gregorian::date_duration not found az_sw_dude 889 Insane Dependencies az_sw_dude 890 date_time library supports only the current dst rule bemandawes 1378 filesystem path invalid name for hidden files (LINUX) bemandawes 1389 filesystem::ostream << boost::format generates operator ambigious error (in MSVC++) bemandawes 1458 Darwin Tiger throws std::runtime_error: locale::facet::_S_create_c_locale name not valid bemandawes 1578 bug in readdir_r_simulator() in a multi-threaded environment bemandawes 1583 Serious flaw in boost::filesystem filename handling (opensuse) bemandawes 1589 [filesystem] 'mbstate_t' : is not a member of 'std' bemandawes 1606 filesystem/src/exception.cpp doesn't build with gcc bemandawes 1613 Link Errors against file_system on OS X with Intel Version 10.1 C++ compilers bemandawes 1682 path_traits needs imbue() bemandawes 1701 boost::filesystem::remove_all - segmentation fault with wpath on Linux bemandawes 752 directory_iterator doesn't work with catch chris_kohlhoff 1703 [asio] Compiler warnings on VC8/9 + warning level 4 danieljames 1554 When BOOST_HASH_NO_EXTENSIONS is defined hash doesn't support new string types. danieljames 1555 When BOOST_HASH_NO_EXTENSIONS is defined hash doesn't support boost::system::error_code danieljames 1705 [boostbook] Spaces in reference file names for types like 'long long' danielw 1044 Argument pack inaccessable in a functions return type danielw 1054 Parameter takes an "infinite" amount of time to compile with the Intel compiler. danielw 1097 keyword.hpp generates many warnings C4180: qualifier applied to function type has no meaning; ignored dave 1010 linking boost.python on freebsd dave 1019 iterator_facade::pointer should be the return type of operator-> (DR 445) dave 1085 Python rules for compiling in Mac OS X dave 1179 [boost.python] can not export a union in VC2005sp1 dave 1181 [boost.python] can modify enum value dave 1387 Review / update docs to reflect changes dave 1460 Python classes with multiple bases are convertible only to the first class in the lists dave 1482 boost::python::throw_error_already_set should be marked noreturn dave 1516 [python] Failing VC9 regression tests dave 1599 [python] '_set_se_translator': identifier not found dave 1697 [utility][noncopyable] ADL barrier broken by msvc-9.0 dave 865 Use of C++0x keyword as identifier dave 910 gcc strict-aliasing problems with python dgregor 1009 Improper overflow handling in shortest paths algorithms dgregor 1164 Floyd Warshall broken with unsigned edge weights dgregor 1192 [boostbook] problem when two files have the same name dgregor 1199 configure doesn't work with path containing whitespaces (MacOS X) dgregor 1310 [result_of] const-qualified function pointer doesn't work dgregor 1326 Unable to check graph isomorphism using LEDA adapter dgregor 1391 dominator_tree_test on Borland/CodeGear outputs overly long line dgregor 1395 Write Tests for Python Bindings dgregor 1630 gcc-4.3: adjacency_list.hpp includes deprecated header dgregor 1680 long long and wchar_t support in MPI dgregor 556 Bundled graph properties dgregor 732 Johnson All-Pairs needs better "no path" information dgregor 736 Const correctness violation djowel 1170 Emit Warnings instead of # symbols in the syntax highlighter djowel 1171 Quickbook title output djowel 1172 non-utf djowel 1176 Space after inline code djowel 1206 Escaping from within code? djowel 1273 CR+LF newlines in position_iterator djowel 1276 spirit problem with _GLIBCXX_DEBUG djowel 1277 Closing section like [pre with } causes Quickbok to crash djowel 1280 sections in imported source files get put inside <para> elements in docbook output djowel 1281 Quickbook produces invalid BoostBook/DocBook XML djowel 1324 tuple should have a swap() that operates element-by-element djowel 1396 wrong result_of invocation around transform_view djowel 1436 [quickbook] inline code inside headings djowel 1484 Quickbook produces illegal docbook for some docinfo fields. djowel 1500 [Spirit/Phoenix] C4512 Compiler warnings from VC8 djowel 1570 Some boost headers aren't ready for gcc 4.3 djowel 1600 duplicate include guard djowel 1601 distane of boost::tuple djowel 1607 Tuple Library Documentation Changes djowel 1610 [MSVC/STLport] [tree/common.hpp] Standard library requirements violation(incomplete type as vector parameter) djowel 1614 vector workaround needed for MSVC9 djowel 1617 spirit gcc-4.3 fix djowel 1619 [Fusion] C4512 warnings from VC9 (Visual Studio 2008) dlwalker 613 boost/crc.hpp uses non-standard conforming syntax doug_gregor 1021 [Graph][reverse_graph] Problem using reverse_graph adapter with an adapted user defined graph doug_gregor 1076 compile error: disconnecting struct with operator()() doesn't work in VS2005 SP1 doug_gregor 375 LEDA graph adaptors do not handle hidden nodes properly doug_gregor 402 random_vertex/random_edge are unnecessarily inefficient doug_gregor 403 Document copy_component doug_gregor 447 reverse_graph and constness of property maps doug_gregor 708 Dijkstra no_init version should not require VertexListGraph doug_gregor 733 Numbered headers don't work with "preferred" syntax doug_gregor 735 Fruchterman-Reingold grid performance can be improved doug_gregor 738 Memory leaks with signal::connect? doug_gregor 829 Implicit graph not implement doug_gregor 852 Problem with Boost and GCC 4.1 ebf 1507 [variant] C4512 warnings from VC8.0 ebf 1548 [variant][docs]typo: formal arg_ operand_ should be v in times_two arglist ebf 1654 recursive variants do not handle nested variants correctly. ebf 993 Variant should use least common multiple of alignments_ rather than maximum fcacciola 1666 Visualizer for boost::optional fmhess 1714 crash due to new shared_from_this code garcia 1581 Boost.MultiArray: Resizing bug if the index is not 0-based grafik 1041 Cygwin requires PATH setting. grafik 1322 trac rejects patch attachment as spam grafik 1417 Regresson tests hang in Darwin (Tiger) grafik 1430 Regression fails under Cygwin grafik 1433 Trac's spam detection rejects too many valid messages grafik 1512 Broken link to vacpp in bjam docs. grafik 1513 Broken link to bcpp in bjam docs. grafik 1571 boost bugtracker displays a patch incorrectly grafik 1576 cannot read non-ASCII output messages grafik 1577 Some commands don't work because hStdInput == 0 grafik 1663 build.bat cannot set/reset ERRORLEVEL grafik 616 Boost Jam_ and non english directorys grafik 959 linking fails when Boost is compiled with STLport 5.1.* on Linux (names mismatch) grafik 986 Problem building Python modules on boost 1.34.0 hkaiser 1079 boost-1.34.0 fails to compile. concept checks not satisfied. hkaiser 1670 wave almost unusably slow on real-world input igaztanaga 1080 boost::interprocess win32 global file mapping issue igaztanaga 1210 interprocess::barrier hangs during second use under linux (boost 1.33.1) igaztanaga 1390 Interpocess: managed shared memory failing completely under OS X igaztanaga 1634 boost::interprocess::vector cannot contain volatile int igaztanaga 1635 Incomplete include guard in boost/intrusive jmaurer 351 Diff in state of mersenne_twister gen between GCC3.41 & CW9 jmaurer 599 uniform_01 copies engine instead of using a reference johnmaddock 1081 Empty string rejected as perl-style regex johnmaddock 1314 Using SSE-intrinsics in VC8 causes static assert in type_with_alignment.hpp johnmaddock 1411 Fix BOOST_PARTIAL_SPECIALIZATION_EXPLICT_ARGS johnmaddock 1446 POSIX API doesn't use C locale johnmaddock 1451 error: use of C99 long long integer constant johnmaddock 1626 [type_traits] "bad_alloc is not a member of std" in has_virtual_destructor_test.cpp jsiek 1531 segfault in dynamic_bitset::reference assign operator jsiek 1540 Poisson distribution very slow for large mean (and may also overflow). jsiek 575 Calling subgraph::global_to_local on a root graph jsiek 636 strange compiling problem for transitive_closure jsiek 815 remove_edge core dumps on self-circle jsiek 875 No iterator based constructor for adjacency_matrix jsiek 900 graphml reader namespace handling is broken kaalus 1184 property_tree assignment (operator) bug kaalus 1604 property_tree xml parser doesn't compile with gcc kaalus 1678 Boost.property_tree::read_xml does not parse UNICODE file with BOMs marshall 1252 [pool] severe overhead with unaligned sizes. marshall 1493 SVN files making it through to install matias 1406 Understanding the Tables outdated matias 1651 incorrect typedefs in examples matias 1676 Dead links on Boost.Test example documentation. matias 1707 small typos in Boost.serialization documentation nasonov 1220 lexical_cast requires RTTI nasonov 1704 [any] 4512 warning from VC8/9 on warning level 4 nasonov 754 boost::any - typeid comparison across shared boundaries nesotto 1629 range/iterator_range.hpp bug nesotto 1675 [range] VC8 - compiler warnings when including range/array headers nesotto 1694 NDEBUG vs. BOOST_ASSERT in iterator_range.hpp no-maintainer 1068 Mersenne twister disables streaming for Visual C++ no-maintainer 1222 lambda::ret<T> should declare result_type. no-maintainer 1270 uniform_smallint doesn't compile with lagged_fibonacci random number generators no-maintainer 1515 [lambda] C4512 warnings from VC8.0 no-maintainer 1544 uniform_01 w/ref template param causes ref to ref error no-maintainer 1546 Method boost::random::uniform_int::operator()(engine_ value) is missing no-maintainer 1572 [lambda] smart pointer const-ness affects its contents no-maintainer 1632 Default Interval rounding policies incomplete no-maintainer 1691 [Random] Brokem MSVC workaround no-maintainer 781 Lambda: (_1 + "y")(string("x")) Doesn't Compile no-maintainer 819 uniform_int<> with type's maximum availaible range error pavol_droba 1152 rle_example fails pavol_droba 1385 begin must be boost-qualified pdimov 1106 shared_ptr<T> should not convert to shared_ptr<U> when T* doesn't convert to U* ramey 1285 [serialization] problem when including shared_ptr_132.hpp ramey 1628 Lack of wide character support prevents boost.serialization from linking ramey 1662 boost::serialization for boost::optional - missing include ramey 1689 [serialization] Update a link ramey 1708 Can't serialize class with private destructor ramey 1711 Boost Serialization export facility broken on gcc 4.1_ 4.2 rogeeff 1383 signal.h features not found on Mac OS rogeeff 1542 [test] compiler errors when building with stdcxx library samuel_krempp 1699 Compile warning about initialization order. samuel_krempp 859 boost::format ignores a user defined locale shammah 290 perfomance: memory cleanup for pool takes too long shammah 386 boost::pool_allocator breaks with vector of vectors speedsnail 1138 Problems with TSS and static thread library t_schwinger 1653 wave executable erroneously required for build of function_types lib turkanis 1523 [iostreams] VC8/VC9 compiler warnings turkanis 1545 [boost/rational.hpp] 'noskipws' is not a member of 'std' turkanis 1579 gzip compressor should model DualUseFilter turkanis 1580 Add static assert to prohibit instantiating a chain with mode dual_use turkanis 1649 Fix definition of JavaScript menu to avoid long chains of functions turkanis 1656 Consider implementing flush() for symmetric filters turkanis 1671 type mismatch of buffer size parameter causes overload resolution to fail urzuga 574 [boost::lambda] Compile error with libstdc++ debug mode vladimir_prus 1165 more quoting problems vladimir_prus 1274 Useless error message vladimir_prus 1321 invalid docbook in tool documentation vladimir_prus 1527 [program_options] Second (and subsequent) lines in tabbed text not aligned correctly vladimir_prus 1530 Program options documentation - Overview - Syntactic Information example typo vladimir_prus 1537 no value given in 'mysql_password =' vladimir_prus 1584 cryptic bbv2 error building quickbook vladimir_prus 1587 [program_options] crashes if value part missing in external configuration file vladimir_prus 1588 [program_options] crashes if value part missing in external configuration file vladimir_prus 1645 Invalid unicode support for default_value vladimir_prus 1679 added 4-way universal binary support from mac osx (ppc_ ppc64_ i386_ x86_64) vladimir_prus 469 multitoken broken vladimir_prus 689 [program_options] Endless loop with long default arguments witt 1046 Boost.Python quickstart instructions mention nonexistent target witt 583 Fixes for build on IBM pSeries for AIX and Linux witt 834 Homepage regression links witt 957 The "Getting Started" page does not mention the stdlib option witt 973 zip_iterator has value_type == reference -- -- Marshall Marshall Clow Qualcomm, Inc. <mailto:mclow@qualcomm.com> The famous British scientist, Lord Kelvin, said: "When you measure what you are speaking about and express it in numbers, you know something about it, but when you cannot (or do not) measure it, when you cannot (or do not) express it in numbers, then your knowledge is of a meagre and unsatisfactory kind."

1 0

[GSoC 2008] Geometry Library (spatial indexes, projections)
by Federico J. Fernández 25 Mar '08

25 Mar '08

Hi List! My name is Federico J. Fernandez, and I'm a student from Buenos Aires University, Argentina. I've been working on some GIS projects, including a lot of geometry (using GDAL, CGAL, GEOS, proj4) and I also want to participate this year in Google Summer of Code. I'll try to be short. As I knew that there were some work started on this direction, I searched trough the list archives and I contacted Barend Gehrels to offer my collaboration in the project. We exchanged some mails and then we tried to contact people in order to find a possible mentor for the project (or at least someone to ask some questions). As we didn't have luck (we didn't receive any answer) we are trying now by the list. Is somebody interested on this as a possible mentor? I think that Barend cannot be mentor because he isn't a boost library author yet, but surely he could guide me through the project. My collaboration in the library will be mostly in the spatial indexing area (k-d-trees, quadtree, etc) and coordinate projection. If we have time maybe we could tackle some geometric algorithms. Bye! -- federico

4 4

[1.35.0] Release candidate 1 available
by Beman Dawes 25 Mar '08

25 Mar '08

Release Candidate 1 is available at http://boost.cowic.de/rc/ Since there may well be major issues with this first RC, I'm very deliberately not posting this notice to the users list, and am not pushing the files out to Sourceforge. Presumably we will have more confidence in RC2, and will announce it on the users list. See my recent posting "Release candidate quality assurance" for discussion of how to QA check release candidates. --Beman

14 42

Need more information about gsoc JSON Archives for Boost.serialization
by lahiru gunathilake 25 Mar '08

25 Mar '08

Hi folks, I'm a student participating for gsoc 2008. I'm interest about your JSON Archives for Boost.serialization project. Could you please send me some more information, which will help me to get a better idea about the project. Thanks, Lahiru.

1 0

[interface] How to get the source code?
by salinda h 25 Mar '08

25 Mar '08

Hi, Does anyone of you know how to get the source code of the boost.interfacelibrary. ( http://www.cdiggins.com/bil.html) Thanks, Salinda

2 1

[threads] [1.35 RC2] forward declaration of exclusive_lock without definition in thread/locks.h
by vicente.botet 25 Mar '08

25 Mar '08

Hi, In boost/thread/locks.hpp, there is a forward declaration which is not defined anywhere. template<typename Mutex> class exclusive_lock; I suppose that this is an error. Regards _____________________ Vicente Juan Botet Escriba

3 2

[proto]purpose of binary_expr<T,L,R>::type ?
by Larry Evans 24 Mar '08

24 Mar '08

Just as: terminal<X>:;type is the type of expressions matching the grammar, terminal<X>, I would expect that binary_expr<T,L,R>::type would match binary_expr<T,L,R>. IOW, just as: matches<terminal<X>::type,terminal<X> > is true, should: matches<binary_expr<T,L,R>::type,binary_expr<T,L,R> > be true? If not, then what is the purpose of binary_expr<,,>::type? If yes, then why am I getting an error with the attached driver whose compilation output is also attached? gcc.compile.c++ ../../../../../bin.v2/sandbox/lje/libs/proto/experiments3/gram_type_test.test/gcc-4.1/debug/link-static/gram_type_test.o gram_type_test.cpp:29: error: conversion from ' boost::proto::exprns_::expr<boost::proto::tag::shift_right, boost::proto::argsns_::args2<boost::proto::exprns_::expr<boost::proto::tag::terminal, boost::proto::argsns_::args0<ti<0> >, 0l>, boost::proto::exprns_::expr<boost::proto::tag::terminal, boost::proto::argsns_::args0<ti<0> >, 0l> >, 2l> ' to non-scalar type ' boost::proto::exprns_::expr<boost::proto::tag::shift_right, boost::proto::argsns_::args2<boost::proto::op::terminal<ti<0> >, boost::proto::op::terminal<ti<0> > >, 2l> ' requested

2 21

Passing strings as a template parameter (small utility)
by Tom Brinkman 24 Mar '08

24 Mar '08

>>Now that I think about it some more, there's really nothing stopping us >>from taking this much farther -- access individual characters, calculate >>the length, slice and substr, even search and replace. There's no reason >>why ctstring<> can't implement most of the std::string interface at >>compile time. This would be great showcase of the advanced work being done by boost developers. This would have a "high" wow factor. I bet, the vast horde of "old-style" c++ developers what immediately step up and take notice.

6 6

vc9 workarounds recommended for 1.35.0
by David Abrahams 24 Mar '08

24 Mar '08

Please see http://svn.boost.org/trac/boost/changeset/43845 -- Dave Abrahams Boost Consulting http://boost-consulting.com

1 0

[Serialization] test_exported_*_archive failures
by Sohail Somani 24 Mar '08

24 Mar '08

On trunk, revision 43795. Does anyone know why these are failing? These are the only tests failing on my machine (g++ 4.1.3 on 32-bit Linux). Additionally test_*_dll don't seem to be running either... Anyway, the error I see is: ../libs/serialization/test/test_tools.hpp(182): unregistered void cast in function 'int main(int, char**)' >From a quick inspection, it appears that the cast between base and derived never gets registered. I'm actually unsure as to how the void cast can get registered *before* BOOST_SERIALIZATION_BASE_OBJECT_NVP(Base) gets executed and therefore, I'm not sure how these tests are passing anywhere else. Where/when is the Base<->Derived cast supposed to be registered in test_exported.cpp? I can only see it being registered when serialize is called for the first time on the polymorphic_derived[12]. -- Sohail Somani http://uint32t.blogspot.com

2 12

Re: [boost] [Boost C++ Libraries] #1697: [utility][noncopyable] ADL barrier broken by msvc-9.0
by Beman Dawes 24 Mar '08

24 Mar '08

On Wed, Mar 19, 2008 at 11:05 AM, Boost C++ Libraries < noreply(a)lists.boost.org> wrote: > #1697: [utility][noncopyable] ADL barrier broken by msvc-9.0 > > ----------------------------------------------------+----------------------- > Reporter: Shunsuke Sogame <pstade.mb(a)gmail.com> | Owner: dave > Type: Bugs | Status: > assigned > Milestone: Boost 1.35.0 | Component: None > Version: Boost Development Trunk | Severity: Problem > Resolution: | Keywords: > noncopyable > > ----------------------------------------------------+----------------------- > Changes (by dave): > > * cc: bdawes(a)acm.org (added) > * owner: => dave > * status: new => assigned > * milestone: Boost 1.36.0 => Boost 1.35.0 > > Comment: > > This can probably be fixed by sinking boost::noncopyable into a > subnamespace and then adding a using declaration to make it available in > boost:: > > Beman, if we're supporting vc9 now, I think we should make this change > for > 1.35.0 so I changed the milestone. Feel free to contradict me and change > it back Dave, While we aren't really targeting VC++ 9.0 with this release, most of the problems being turned up have relatively easy fixes so I'd like to get them in 1.35.0 if doing so does not result in a delay. Thus if this one really is easy, and if someone will try the changes and walk them through the process in the next day or two, I'd like to see the fix in 1.35.0. Otherwise it can wait 'til the next release. --Beman > > > -- > Ticket URL: <http://svn.boost.org/trac/boost/ticket/1697#comment:1> > Boost C++ Libraries <http://www.boost.org/> > Boost provides free peer-reviewed portable C++ source libraries.

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problem with shared_from_this in trunk
by Tim Blechmann 24 Mar '08

24 Mar '08

hi all, a few days ago, some changes to the shared_from_this implementation have been committed to the trunk ... the changes break the following code, though (maybe this can be added to the shared_from_this_test.cpp test suite?): struct V: public boost::enable_shared_from_this<V> {}; struct W: V {}; void test4(void) { W * w = new W(); boost::shared_ptr<W> p(w); } best, tim -- tim(a)klingt.org http://tim.klingt.org Most of the trouble in this world has been caused by folks who can't mind their own business, because they have no business of their own to mind, any more than a smallpox virus has. William S. Burroughs

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