April 2008 - Boost - lists.preview.boost.org

Congratulations to the Successful Summer of Code Students!
by John Maddock 24 Apr '08

24 Apr '08

Many congratulations to the eight successful Google Summer of Code applicants: http://code.google.com/soc/2008/boost/about.html We had a lot of very strong proposals this year, so our commiserations go to all those student's who weren't successful: we really appreciated all of your applications, and some of you lost out by just a hair's breadth, so I hope you'll consider applying again next year if you're able. There are some interesting projects again this year, so I'm sure we'll all look forward to seeing the results! Regards, John Maddock.

18 21

[Fusion][Config][TR1] Some fixes committed.
by John Maddock 24 Apr '08

24 Apr '08

Joel, I hope you don't mind but I've just committed some relatively-trivial fixes to Fusion for two issues: The Boost.Config macro BOOST_PARTIAL_SPECIALIZATION_EXPLICT_ARGS has been renamed BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS and docs and tests have been added now to Boost.Config. Includes of <utility> by fusion have been replaced by includes of <boost/config/no_tr1/utility.hpp> - this fixes some TR1 failures caused by cyclic dependencies between TR1 and Fusions Tuples. I'll be watching the test results over the next few days, but if there's anything you're not happy with I'll do some reverting :-) The changelog is here BTW: http://svn.boost.org/trac/boost/changeset?new=trunk%4044692&old=trunk%40446… Cheers, John.

3 3

[circular_buffer] why does the copy constructor not copy capacity
by Stjepan Rajko 24 Apr '08

24 Apr '08

Hello, I've been finding the circular_buffer library very helpful (thanks for a great lib!), but recently found the following behavior surprising (this is using a recent svn trunk, if it matters): boost::circular_buffer<int> one(3); boost::circular_buffer<int> two(one); std::cout<<one.capacity()<<std::endl; // outputs 3 std::cout<<two.capacity()<<std::endl; // outputs 0, I was expecting 3 Why does the copy constructor not copy the capacity? It seems like capacity is an essential property of circular_buffer, and as such I'd expect it to be copied as a part of copy construction. I'm sorry if this rationale is covered somewhere, I looked but couldn't find anything. If there isn't a strong reason, would it be possible to change this behavior in the implementation? (it would still satisfy the stated postcondition in the documentation, AFAICT, except the complexity would change to be linear in the capacity) Thanks, Stjepan

1 1

[smart_ptr] optimize current enable_shared_from_this with 100% compatibility
by Daniel Frey 24 Apr '08

24 Apr '08

The attached patch optimizes the current implementation of enable_shared_from_this, it saves one plain pointer. That might not be very much, but it's a start. It is 100% compatible for the users, no features are dropped. Further improvements might be possible, but I think the attached patch is a good base. Peter, do you see any chance for it? If not, please tell me why and (if possible) what needs to be improved. Regards, Daniel

4 16

Has someone any plans to submit a exception_ptr library to Boost? (was Review Request: future library (Gaskill version))
by vicente.botet 24 Apr '08

24 Apr '08

From: "Peter Dimov" <pdimov(a)pdimov.com> To: <boost(a)lists.boost.org> Sent: Sunday, April 13, 2008 11:54 PM Subject: Re: [boost] Review Request: future library (Gaskill version) > vicente.botet: >> Hello Peter, >> >> this future library use your exception_ptr (providing a partial emulation >> of >> N2179) and as I supose should be the case of any future implementation. >> >> Do you plan to submit your implementation to Boost? > > My implementation is merely a proof of concept. I know Anthony Williams has > one (specific to MSVC) that is much more impressive (although I don't see it > in the SVN). I see that Emil Dotchevski also has something along these lines > in boost/exception/cloning.hpp. The future library also seems to contain an > enhanced implementation. Peter, thanks for the references. libpoet has also another one based on yours. With the yours this give us 5 exception_ptr implementations, and I suppose that there are others in the field. Kowalke Oliver has just port a proposal to manage with user exceptions on the context of the future library, passing a mpl::vector of user exceptions to the point which could throw the exception. I need to think a little bit to see if this could be adapted to the exception_ptr library. Anthony, can I take a look to your implementation? I have make a comparaison between the 4 implementations. 0.a copy_exception/clone_exception : EXCEPTION use clone and works well for exceptions inheriting either from boost::clone_base either from boost::exception. For the other store a unknown_exception 0.b current_exception not provided by EXCEPTION 1.a _exp_throwable has virtual destructor: FUTURE & POET 1.b template< class E > class _exp_throwable_impl has virtual destructor: FUTURE 2 exception_ptr _exp_current_exception a _CATCH_AND_RETURN/_CATCH_AND_RETURN_WHAT: POET return the result of what() of the exceptions instead of the exception iteself for standard exceptions. b catch and return exceptions: each implementation use a limited set of exceptions, the standard ones, the boost ones for FUTURE & POET,and the specific exception of each library FUTURE & POET c catch and return for std::exception: PETER & FUTURE store std::run_time (with the std::exception::what() result),POET stores boost::unknown_exception d catch and return for bad_alloc: FUTURE as a header_only library has an static initialization of s_bad_alloc (Why POET don't have it) 3 header_only: FUTURE & POET 1.a 1.b This seams not necessary, shared pointer calls to the correct destructor given on the construtor not the ~T, as Peter as already explained in other posts. 2.a the catch and return needs to preserv the exception as much as possible, so _CATCH_AND_RETURN should be used instead of _CATCH_AND_RETURN_WHAT _CATCH_AND_RETURN should be boostyfied BOOST_EXCEPTION_PRT_CATCH_AND_RETURN and should be undefined at the end of the file. This should be evident for most of the boosters, but why we need this tranformation? 2.b This is the most conflictual point. It is clear that _exp_current_exception will have always a limited set of exceptions. So why not let its definition to the user, providing some mechanisms facilitating the user task. 2.c, 2.b Peter could you explain why we need to transform std::exception and std::bad_alloc onto other exception 2.d The current_exception definition must be in a single compilation unit, and so it can be in the if the point 2.b _exp_current_exception definition is let to the user there is no static initialization problem because the variable is defined in one single compilation unit. 3 As the class is not a template a binary library is possible. If _exp_current_exception is defined by the library this has the liability that the _exp_current_exception will take in account a limited number of exceptions. By the size of the library, a header only library seams also a good choice if the point 2.b _exp_current_exception definition is let to the user. The user can define this in a separated compilation unit. I have attached a exception_ptr.cpp file which must be compiled separately by the user. The user can define BOOST_EXCEPTION_PTR_CATCH_AND_RETURN_USER_EXCEPTIONS__HPP with the file including the user catch and return specifics. I know that this is not very elegant, but considering that this is only an emulatuion ... Anthony, can your implementation improve this issues? Has someone any plans to submit a exception_ptr library to Boost? Best regards _____________________ Vicente Juan Botet Escriba

8 21

TSS performance problem
by Arnstein Ressem 23 Apr '08

23 Apr '08

I did a benchmark on RHEL 4 64-bit with gcc 3.4.5 and found a large difference in the performance of TSS. I have used the provided example with the following modification: --- boost_1_35_0/libs/thread/example/tss.cpp.org 2008-04-23 22:40:50.000000000 +0200 +++ boost_1_35_0/libs/thread/example/tss.cpp 2008-04-23 22:44:51.000000000 +0200 @@ -21,3 +21,3 @@ value.reset(new int(0)); // initialize the thread's storage - for (int i=0; i<10; ++i) + for (int i=0; i<100000000; ++i) { Compiled and linked with boost 1.33.1: $ time ./tss_1.33 real 0m7.734s user 0m15.379s sys 0m0.004s Compiled and linked with boost 1.35.0: $ time ./tss_1.35 real 0m21.074s user 0m41.253s sys 0m0.004s The new version of boost uses almost three times as long to complete the example. Did anyone else experience the same problem ? Regards, Arnstein Ressem

1 0

Trac open bugs - by assignee
by Marshall Clow 23 Apr '08

23 Apr '08

[ 288 open bugs today, 287 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 28 djowel 23 grafik 23 az_sw_dude 16 vladimir_prus 16 dave 15 bemandawes 13 dgregor 13 anthonyw 12 doug_gregor 11 no-maintainer 11 agurtovoy 10 ramey 9 jsiek 8 turkanis 8 rogeeff 8 nesotto 6 danieljames 5 igaztanaga 4 witt 4 pavol_droba 4 nasonov 4 ebf 4 danielw 3 samuel_krempp 3 kaalus 3 johnmaddock 2 troyer 2 shammah 2 matias 2 jmaurer 2 hkaiser 2 garcia 1 urzuga 1 t_schwinger 1 speedsnail 1 pdimov 1 marshall 1 guwi17 1 fcacciola 1 eric_niebler 1 dlwalker 1 aaron_windsor 1 None 1 <Blank> <Blank> 1750 Autolink library name not in sync with actually build lib None 1736 Headers containing non ASCII characters cause MS VC to issue warning 4819 in some locales aaron_windsor 1622 Adjacency list needs to handle self-edges correctly 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 1805 thread creation crashes with /Zp1 switch in VS2005 compiler anthonyw 1813 Signed/Unsigned warning in win32/condition_variable anthonyw 1825 thread.hpp injects windows.h and breaks user application. anthonyw 1826 Auto detection of threadapi and target-os broken under cygwin gcc anthonyw 1834 boost::condition drops signals with notify_one() anthonyw 1835 boost::thread equality operator bogus in 1.35 ? anthonyw 1848 Boost.Thread is incompatible with UPX 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 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 1726 boost/date_time/posix_time/time_formatters.hpp incorrectly formats fractional seconds using global locale az_sw_dude 1740 date_time includes <windows.h> az_sw_dude 1788 local_time::local_time_period streaming operators not implemented 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 1711 Boost Serialization export facility broken on gcc 4.1_ 4.2 bemandawes 1767 missing file: boost/filesystem/cerrno.hpp bemandawes 1768 system: error_code.cpp #defines macros without checking whether already defined bemandawes 1840 name check functions have different behavior wrt empty string bemandawes 752 directory_iterator doesn't work with catch 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' danieljames 1742 Some bugs in http://www.boost.org/doc/libs/1_35_0 danieljames 1743 Documentation has incorrect Build & Link settings for some libraries danieljames 1818 The tables in status reports jump all over the place. 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 danielw 1784 [parameter] missing include 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 1730 No debug libs on Windows by default dave 1833 Boost.Python used with Boost.TR1 broken dave 1851 Issue with proxies and rvalues 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 1832 unused parameter warning in dijkstra_shortest_paths.hpp 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) djowel 1651 incorrect typedefs in examples djowel 1722 [TR1/Fusion] Conflict between TR1 and Fusion headers djowel 1763 wrong AST when parser_tag==0 djowel 1764 wrong AST when parser_tag==0 djowel 1844 Quickbook matches forward slashes (for italics) with slashes in links 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 eric_niebler 1796 compile error when SDL_syswm.h (from sdl library) is included before foreach.hpp fcacciola 1666 Visualizer for boost::optional garcia 1581 Boost.MultiArray: Resizing bug if the index is not 0-based garcia 1741 Review schedule out of date grafik 1041 Cygwin requires PATH setting. grafik 1322 trac rejects patch attachment as spam grafik 1406 Understanding the Tables outdated 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 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 1733 Website layout overlays on IE7 grafik 1735 [website] Wrong HTML on main documentation page. grafik 1738 Boost Jam details and download link grafik 1739 Search box and Google link grafik 1753 Python docs: bad link to the Jamroot grafik 1771 Statechart TOC mangled. grafik 1775 website bugs for 1.35.0 docs grafik 1776 Documentation page renders incorrectly in Safari 3.1 on OS X grafik 1799 Boost.Test docs missing reference pages 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 guwi17 1829 norm_2 may return QNAN if BOOST_UBLAS_SCALED_NORM is defined 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 1446 POSIX API doesn't use C locale johnmaddock 1451 error: use of C99 long long integer constant jsiek 1531 segfault in dynamic_bitset::reference assign operator jsiek 1540 Poisson distribution very slow for large mean (and may also overflow). jsiek 1755 Boost.tokenizer is broken for wide characters - patch attached jsiek 1798 met an error using boost::tokenizer in multi-times in vs2005_ unicode 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. matias 1744 No information on building static libraries with bjam under Windows matias 1822 header dependency in boost/serialization/map.hpp nasonov 1220 lexical_cast requires RTTI nasonov 1704 [any] 4512 warning from VC8/9 on warning level 4 nasonov 1847 Can't compile without <locale> header_ boost::lexical_cast problem 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 nesotto 1748 [ptr_container] compiler warnings from VC9 nesotto 1754 Illegal HTML in range docs. nesotto 1785 assign::list_of works poorly with class constructors nesotto 1795 [ptr_container] minor documentation typo nesotto 1842 boost::sub_rage::front error 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 pavol_droba 1761 StringAlgo: Error in an example pavol_droba 1827 String algorithm composite header doesn't include join pdimov 1106 shared_ptr<T> should not convert to shared_ptr<U> when T* doesn't convert to U* ramey 1708 Can't serialize class with private destructor ramey 1734 BOOST_STATIC_WARNING can't be passed a dependent expression ramey 1747 [serialization] unreferenced formal parameter warnings from VC9 ramey 1807 boost::archive::xml_archive_exception does not store error code and reports wrong message text ramey 1812 Boost.Serialization fails to build on Cygwin ramey 1823 Archive concept: Incomplete description? ramey 1824 serialization keeps using wchar_t if BOOST_NO_STD_WSTRING is set ramey 1836 bug in serializing wide character strings ramey 1837 Base class missed in binary_wiarchive ramey 1849 Deserialization of std::string overwrites non-copied contents. rogeeff 1383 signal.h features not found on Mac OS rogeeff 1542 [test] compiler errors when building with stdcxx library rogeeff 1644 Boost.Test missing documentation file BOOST_CHECK_CLOSE_FRACTION.html rogeeff 1676 Dead links on Boost.Test example documentation. rogeeff 1723 No subprocess can be started in init_unit_test_suite rogeeff 1746 Online documentation for 1.35.0 is out of date for current lib version rogeeff 1781 Empty page in Test documentation rogeeff 1839 Test fails if child process exits with non-zero code samuel_krempp 1699 Compile warning about initialization order. samuel_krempp 1801 Typo in documentation. 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 troyer 1774 serialization: file written with 1.34.1 can't be read in with 1.35 troyer 1778 Possible regression in 1.35 serialization of 2D arrays 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 turkanis 1727 Sample code in documentation does not compile_ has namespace errors. 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 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 1809 Allow empty values in conf file vladimir_prus 1816 --build-type=complete broken in current svn 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 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

shared_mutex deadlocks?
by Peter Dimov 23 Apr '08

23 Apr '08

I'm seeing a deadlock on a dual core Pentium D from libs/smart_ptr/test/sp_atomic_mt_test.cpp when USE_RWLOCK is defined (which causes it to use boost::shared_mutex). It works on uniprocessor.

4 11

[shared_ptr] gcc-warnings in yield_k.hpp
by Juergen Hunold 23 Apr '08

23 Apr '08

Hi ! Peter Dimov commited some refacturings for shared_ptr last weekend. One commit triggered the following warning from gcc-4.2: In file included from yield_k_test.cpp:12: $BOOST_ROOT/boost/boost/detail/yield_k.hpp: In function 'void boost::detail::yield(unsigned int)': $BOOST_ROOT/boost/detail/yield_k.hpp:114: warning: missing initializer for member 'timespec::tv_nsec' This is gcc-4.2 on SuSE-10.3 and Kubuntu Hardy. We compile our code with -Wextra. Adding -Wextra to the compile flags of the yield_k test in libs/smart_ptr/test shows this warning in the regression test. I've got a small fix attached which (hopefully) initialises "rqtp" completely in the initialiser list and removes the (hopefully) redundant assignments. I've manually run the regression test and they pass. I'm unsure if this is the right test. Comments ? Okay to commit ? Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * juergen.hunold(a)ivembh.de ! www.ivembh.de * * Geschäftsführer: ! Sitz des Unternehmens: Hannover * Prof. Dr.-Ing. Thomas Siefer ! Amtsgericht Hannover, HRB 56965 * PD Dr.-Ing. Alfons Radtke !

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[Serialization] Thread-safety of trunk code
by Sohail Somani 22 Apr '08

22 Apr '08

Hey Robert, I know I promised I'd look into it a long time ago, and I finally got around to it. It appears you have addressed the thread-safety issue by ensuring that all the mutable singleton objects get created before main. Is this correct? If so, then the problem is shifted to the implementation-specifics. I see two things that need to be determined for a given compiler/OS: 1) If you dynamically load a dll/shared object (eg, dlopen/LoadLibrary) does your loader guarantee that the global C++ constructors will be called? I recall some Unices that I've had the misfortune of coming across where this is not the case. 2) Does the singleton<T> + static T reference hack work as expected on the compiler? For users, perhaps it would be most helpful to have tests that test the above. I think there are tests that test the second case indirectly. If memory serves, BBv2 is a hurdle to getting the first in a test-case. Perhaps one of the BBv2 gurus can help you there ;-) Other than that, it looks good to me. Good job rewriting the dangerous parts rather than patching in the thread-safety. This is based on my reading and not actually testing the thread-safety so your mileage may vary ;-) -- Sohail Somani http://uint32t.blogspot.com

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