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

Intel open sources multicore programming tool
by Tom Brinkman 25 Jul '07

25 Jul '07

Thought I'd pass along this news. Intel open sources multicore programming tool Intel announced today that they're open-sourcing their cross-platform Thread Building Blocks 2.0 (TBB) template library. The aim of TBB, is to make it easier for coders in C++ to express task-level parallelism. TBB works by abstracting parallelism above the level that most programmers are currently used to, especially those coders who use POSIX or Windows threads. Coders can use the TBB template library in conjunction with the platform's native threads, and the different pieces of the project (task scheduler, mutex locks, atomic operations, containers, etc.) can be used independently of one another. Link to story: http://arstechnica.com/news.ars/post/20070724-intel-open-sources-multicore-… Download: http://osstbb.intel.com/

3 2

Trac bugs - by assignee
by Marshall Clow 25 Jul '07

25 Jul '07

[ 321 open tickets today, 318 yesterday ] If you are maintaining a library, and have not logged into the trac system at <http://svn.boost.org/trac/boost/>, please do so ASAP. Until you do that, no tickets can be assigned to you, and will remain under "None". Instructions on working with tickets can be found at: <http://svn.boost.org/trac/boost/wiki/TicketWorkflow> 26 doug_gregor 22 johnmaddock 21 grafik 21 bemandawes 21 None 17 az_sw_dude 15 jsiek 14 pdimov 13 rogeeff 13 dave 12 vladimir_prus 11 turkanis 9 ramey 9 agurtovoy 7 speedsnail 7 samuel_k 6 shammah 6 nesotto 6 jbandela 6 anthonyw 5 witt 5 <Blank> 4 urzuga 4 nobody 4 mark_rodgers 4 fcacciola 4 djowel 4 danielw 3 jmaurer 3 ebf 3 dlwalker 2 hubert_holin 2 danieljames 2 alnsn 1 nmusatti 1 mistevens 1 kevlin 1 hkaiser 1 garcia 1 eric_niebler 1 dgregor 1 asutton 1 aaron_windsor None 1116 disable some warnings in msvc build None 1101 [MPI] Const-incorrectness in boost::mpi::status None 1100 Building boost.function_types fails cvs rev-1.1_ no chdir command in bash None 1099 unable to iterate through a "non-explicitly-declared" mpl::set None 1094 Finding the correct library to link (feature request for pkg-config support)h None 1090 scoped_file class that deletes file at end of scope None 1089 missing boost::serialization::make_nvp in pointer container library None 1080 boost::interprocess win32 global file mapping issue None 1079 boost-1.34.0 fails to compile. concept checks not satisfied. None 1074 FreeBSD specific patches to boost 1.34.0 None 1068 Mersenne twister disables streaming for Visual C++ None 1059 random_on_sphere can be made 10 times faster! None 1033 iostreams::restrict doesn't work on an iostreams::file_source None 1023 inspect None 1006 No mingw.jam None 1003 [iostreams] copy-paste error in typedefs for wchar multichar_filters None 1002 [iostreams] close_impl<closable_tag> does not comply with spec None 991 [pool] None 982 x64 documentation for windows None 980 boost.format vc8/win32 compilation warning None 960 [random] lognormal_distribution problem <Blank> 1112 reference_wrapper<T> should convert to reference_wrapper<U> when T& is convertible to U& <Blank> 1093 Mandatory source files shouldn't require_ or give the impression to require_ the Boost Build system <Blank> 1070 [iostreams]boost\iostreams\copy.hpp line80 copy_impl <Blank> 1027 [ptr_container] optional serialization support <Blank> 1011 amd64: #error Boost.Numeric.Interval: Please specify rounding control mechanism. aaron_windsor 778 top-level configure is broken agurtovoy 1051 MPL header ordering triggers bug agurtovoy 1049 Getting mpl/has_xxx.hpp to compile on AIX agurtovoy 1001 gcc 4.1.2 segfaults on mpl/test/apply.cpp agurtovoy 861 [mpl] Detect nested template members with has_template_xxx agurtovoy 816 duplicat initial members -> erase_key postcond. fail agurtovoy 761 [mpl] evc4 port agurtovoy 640 documentation mistake agurtovoy 637 Adjusts mpl::pair concept to be compatible with STL pairs agurtovoy 588 mpl::remove compile error with gcc 4.1.0 alnsn 839 lexical_cast - local variable shadow patch alnsn 754 boost::any - typeid comparison across shared boundaries anthonyw 1053 Error using boost::mutex and C++/CLI anthonyw 659 provide an abstract "Task" type based on Boost.Threads anthonyw 881 errors when build with Apache stdcxx anthonyw 876 xtime documentation incomplete anthonyw 868 [thread] thread_specific_ptr::element_type ? anthonyw 802 [thread] MSVS: Allow use of thread headers with /Za asutton 693 Add clique detection algorithms DFMax_ Bron-Kerbosch az_sw_dude 1117 [asio][0.3.8 rc3]check BOOST_ASIO_HAS_IOCP before assumed _WIN32_WINNT was defined az_sw_dude 1098 Urgent libboost-date-time1.33.1 : bugs on ia64 ? az_sw_dude 1078 from_iso_string cannot read the output from to_iso_string az_sw_dude 1028 typo in boost header: date_time/time_defs.hpp az_sw_dude 224 Extensions to std::string: compareIgnoreCase()_ trim()_ ... az_sw_dude 187 locale az_sw_dude 17 Socket wrapper class az_sw_dude 890 date_time library supports only the current dst rule az_sw_dude 889 Insane Dependencies az_sw_dude 827 Unused variable in format date parser az_sw_dude 642 operator<< for gregorian::date_duration not found az_sw_dude 614 new timezone db file for #1471723 - 2007 DST support az_sw_dude 605 support new 2007 DST rules for timezone db az_sw_dude 604 from_ftime incorrectly processes FILETIME filled with zeros az_sw_dude 596 make timezone csv file C/C++ compatible az_sw_dude 316 date_time type conversion warning az_sw_dude 287 wrong usage of ios_base::narrow bemandawes 1092 [Boost.Filesystem] Program can't run under Win 98 bemandawes 1073 operations.cpp_ dummy_first_name lifetime bemandawes 1061 boost::filesystem::basic_recursive_directory_iterator fails on empty directories. bemandawes 1014 rename throws an exception that is not documented bemandawes 995 'multiply defined symbols' when including <boost/filesystem.hpp> in different source files bemandawes 897 exists() throws exeption on existing but locked file on wind bemandawes 842 typo in auto_unit_test.hpp Revision 1.17 bemandawes 824 BOOST_IOSTREAMS_HAS_LSEEK64 on Mac OS X bemandawes 823 Seekable file_descriptor_source /sink? bemandawes 800 [filesystem] chdir() bemandawes 752 directory_iterator doesn't work with catch bemandawes 680 significantly different timer class behaviour on Win and Lin bemandawes 662 [filesystem] portable_posix_name() may fail on premain call bemandawes 621 filesystem::path as a template bemandawes 607 Log level names wrong in documentation bemandawes 600 VC8 can't find windows.h even though environment is correct! bemandawes 590 mkstemp bemandawes 559 linker error mingw 3.4.5 bemandawes 366 handle double '/' in the boost::filesystem bemandawes 294 unicode support in boost::filesystem bemandawes 222 Code analysis_ flaw detection_ debugging danieljames 1095 GCC warnings with -Wsign-promo danieljames 1064 problem on platforms with no errno.h header file danielw 1097 keyword.hpp generates many warnings C4180: qualifier applied to function type has no meaning; ignored danielw 1054 Parameter takes an "infinite" amount of time to compile with the Intel compiler. danielw 1044 Argument pack inaccessable in a functions return type danielw 863 [parameter] fix operator|| for lazy binding dave 1115 Broken exec example in BPL docs dave 1096 Tutorial needs updating for BBv2 dave 1085 Python rules for compiling in Mac OS X dave 1066 Patch to make Boost.Python compile on SunCC dave 1020 Boost.Iterator proposal to add is_constant_iterator dave 1019 iterator_facade::pointer should be the return type of operator-> (DR 445) dave 1010 linking boost.python on freebsd dave 918 __doc__ strings dave 916 BPL Support for Python Callable Objects dave 910 gcc strict-aliasing problems with python dave 903 inconsistent usage of function pointer typedefs dave 865 Use of C++0x keyword as identifier dave 857 add shared_ptr< const T> support dgregor 987 configure passes wrong toolset to bjam djowel 664 crash in boost::spirit::parse djowel 543 Embedded python won't compile djowel 314 spirit insert_key_actor.hpp djowel 241 Miss " = ParserT()" dlwalker 766 "Bug" in comment (x2) dlwalker 653 [integer] add support for integers longer than long dlwalker 613 boost/crc.hpp uses non-standard conforming syntax doug_gregor 1087 Mismatch between BBv2 and bjam toolsets in configure script. doug_gregor 1076 compile error: disconnecting struct with operator()() doesn't work in VS2005 SP1 doug_gregor 1072 assertion failed in dijkstra algorithm doug_gregor 1067 Function needs to use pass-by-reference internally doug_gregor 1021 [Graph][reverse_graph] Problem using reverse_graph adapter with an adapted user defined graph doug_gregor 954 boost::dynamic_properties has no copy-constructor doug_gregor 891 Bunch of compilation error reported while using function.hpp doug_gregor 870 boost::graph::graph_utility.hpp is_connected() bad call doug_gregor 862 [utility] Make result_of handle lambda expressions doug_gregor 852 Problem with Boost and GCC 4.1 doug_gregor 829 Implicit graph not implement doug_gregor 746 max flow with lower bounds (capacities) doug_gregor 738 Memory leaks with signal::connect? doug_gregor 736 Const correctness violation doug_gregor 735 Fruchterman-Reingold grid performance can be improved doug_gregor 733 Numbered headers don't work with "preferred" syntax doug_gregor 732 Johnson All-Pairs needs better "no path" information doug_gregor 708 Dijkstra no_init version should not require VertexListGraph doug_gregor 556 Bundled graph properties doug_gregor 447 reverse_graph and constness of property maps doug_gregor 403 Document copy_component doug_gregor 402 random_vertex/random_edge are unnecessarily inefficient doug_gregor 395 BGL graph types do not support allocators doug_gregor 375 LEDA graph adaptors do not handle hidden nodes properly doug_gregor 373 LEDA graph adaptors for undirected graphs doug_gregor 372 adjacency_matrix should model BidirectionalGraph ebf 993 Variant should use least common multiple of alignments_ rather than maximum ebf 965 [doc] boost::variant tutorial - final example uses v1_v2 should be seq1_seq2 ebf 547 [variant] Compile time checked getter eric_niebler 1071 Request for BOOST_REVERSE_FOREACH and rationale fcacciola 818 No zero-argument in_place() fcacciola 765 optional documentation fcacciola 617 Numeric Conversion Documentation minor bug fcacciola 282 boost::optional<enum> fails with /CLR garcia 1045 [multi_array] Need a proper swap operation grafik 1088 Docs for template escape feature. grafik 1041 Cygwin requires PATH setting. grafik 1040 boost.devel archive at ActiveState disconnected grafik 1031 AmigaOS fixes for bjam grafik 989 Boost build does not support building universal binaries on macintosh grafik 714 [jam] HardLink rule on NT platform grafik 94 Better reporting of failed expectation. grafik 93 Testing problems on AIX and OSF grafik 1062 Cygwin install stage fails with combination of patches grafik 977 bjam crashes when compiled with gcc 4.2 grafik 959 linking fails when Boost is compiled with STLport 5.1.* on Linux (names mismatch) grafik 896 <native-wchar_t>off does not work when build with vc-8.0 grafik 798 bjam: always define OSPLAT grafik 721 Generated files "@()" don't work in regular expressions. grafik 683 libraries won't build grafik 616 Boost Jam_ and non english directorys grafik 552 Building universal binary on MacOSX grafik 546 boost.build needs fixes for HP/UX grafik 497 Unable to build boost with Dinkumware STL version 4.02 grafik 481 Linker Problems with VC .NET 2003 / STLPort / Boost grafik 431 boost jam problem with parallel builds hkaiser 1077 Spirit integer parser does not always detect integer overflow hubert_holin 647 octonion documentation bug hubert_holin 162 Cannot compile octonion_test.cpp because of bug in sinc.hpp jbandela 665 bug in char_separator jbandela 501 token_iterator::at_end() result is inversed jbandela 306 Visual C++ "Language Extensions" support jbandela 283 Compiler error for tokenizer on Solaris jbandela 279 SLOOOWW tokenizer compilation on VC++6.0 jbandela 259 Problem compiling :/ jmaurer 920 Proposed extension to random library jmaurer 819 uniform_int<> with type's maximum availaible range error jmaurer 351 Diff in state of mersenne_twister gen between GCC3.41 & CW9 johnmaddock 1105 Add BOOST_NO_STD_TYPEINFO or inject ::type_info into std johnmaddock 1104 Add BOOST_NO_TYPEID johnmaddock 1103 Add BOOST_NO_IOSFWD johnmaddock 1102 Add BOOST_NO_IOSTREAM johnmaddock 1083 boost_regex 1.34.0 uses ICU library without linking to it johnmaddock 1081 Empty string rejected as perl-style regex johnmaddock 1075 [doc] incorrect comment johnmaddock 1008 Undocumented type traits. johnmaddock 905 Assertion failed in token_iterator.hpp johnmaddock 871 Problem build boost 1.33.1 on Aix 4.3.3 johnmaddock 883 errors when build with Apache stdcxx johnmaddock 812 Crash on RH machine with gcc < 3.4 johnmaddock 775 Warnings on MSVC 2005 johnmaddock 764 [regex] add support for a BOOST_NO_CREGEX mode johnmaddock 679 regex - perl syntax affects what gets matched johnmaddock 633 [config] evc4 port johnmaddock 591 make portable stdint.h from boost code johnmaddock 540 Please add support for Borland C++ Builder 2006 johnmaddock 502 Problem running configure for unsupported platform johnmaddock 492 Adding boost::is_complex to type_traits.hpp johnmaddock 360 Regex johnmaddock 315 Implement operator[] for Tokenizer jsiek 900 graphml reader namespace handling is broken jsiek 875 No iterator based constructor for adjacency_matrix jsiek 815 remove_edge core dumps on self-circle jsiek 813 concept_check.hpp unused variable warning jsiek 694 Add Maximum Common Subgraph (MCS) algorithm jsiek 636 strange compiling problem for transitive_closure jsiek 580 Max Flow Algorithm jsiek 575 Calling subgraph::global_to_local on a root graph jsiek 541 [concept_check.hpp] remove unused variable warning in msvc jsiek 416 Spelling of Edmonds-Karp-Algorithm jsiek 193 Check ordering for mutexes jsiek 182 Support aspect-orientation jsiek 116 creating my own properties jsiek 100 more use of the concept "allocator" jsiek 69 Boost with Dinkumware C++ Library !? kevlin 913 Specialization of lexical_cast mark_rodgers 821 allow_unregistered improvement mark_rodgers 558 add database library? mark_rodgers 87 function to get the size of a array mark_rodgers 30 parser mistevens 688 ublas: bug in mapped_vector_of_mapped_vector nesotto 807 boost::assignment documentation: mathematical "typo" nesotto 730 The ptr_map iterator cannot be dereference to value type nesotto 723 local_time_facet error in VS2005 Win2003 nesotto 624 bug in boost::range_detail nesotto 518 [Boost.Range]boost::const_begin calls non-qualified 'begin' nesotto 471 boost.range and "const char[]". nmusatti 285 Borland compiler error with Pool_ boost::pool_allocator nobody 930 iostream and zlib nobody 922 Lexical cast and wide characters nobody 884 [iostreams] workaround for the boost + stdcxx on MSVC 7.1 nobody 795 [ublas] vector::back() pdimov 1114 Request for shared_ptr::type and shared_ptr::pointer pdimov 1113 shared_array<T> should convert to shared_array<T const> pdimov 1111 boost::bind objects should expose function_type and list_type pdimov 1110 Add a release method to scoped_array pdimov 1109 intrusive_ptr needs a helper base class pdimov 1108 shared_ptr does not compile under g++ with -fno-rtti pdimov 1107 Add weak_use_count to weak_ptr as a debugging aid pdimov 1106 shared_ptr<T> should not convert to shared_ptr<U> when T* doesn't convert to U* pdimov 1084 atomic_count_gcc.hpp tries to #include nonexistant header pdimov 997 error in boost::bind doc pdimov 911 [bind] inline placeholder macro pdimov 810 support for weak_ptr binding pdimov 445 Can't delete automatically in circularly included object. pdimov 398 Support for embedded VC++ 4.0 ramey 1086 Serialization of weak_ptr produces invalid XML ramey 1038 "<" and ">" should be excaped in xml_oarchive ramey 1036 assert failure in oserializer.hpp:418 ramey 969 basic_binary_iprimitive::load_binary bug ramey 968 xml_grammar - incorrect define char ramey 961 boost::basic_binary_oprimitive not instantiated correctly ramey 874 Ability to partially specialize implementation_level ramey 757 xml serialization fails when using namespace ramey 878 error C2039: 'mbstate_t' : is not a member of 'std' rogeeff 1060 no example sources in online docs for Boost::Test rogeeff 1050 BOOST_CHECK_CLOSE_FRACTION documentation missing rogeeff 1032 typo in Boost.Test documentation rogeeff 1030 execution_monitor.ipp #warning directive breaks compilation on MSVC 8.0 rogeeff 999 prg_exec_fail3 fails on release variant rogeeff 998 prg_exec_fail2 fail on ppc rogeeff 962 Missing links in Test library documentation rogeeff 956 Doc error in test examples. rogeeff 893 grammatical error in error message rogeeff 847 [Test Library] How to init/free a singleton rogeeff 762 [test] evc4 issue with SEH support rogeeff 747 failing on 6 targets in MacOS X rogeeff 645 [test] no eh exception handling functions on evc4 samuel_k 859 boost::format ignores a user defined locale samuel_k 849 boost::format and operator priority rule samuel_k 713 Boost.Format doesn't work on MSVC with /vd2 compiler option samuel_k 704 format zero length string msvc-8 samuel_k 585 64 bit compile warning/error for boost::format samuel_k 570 boost::format parse method doesn't work samuel_k 493 format: assert when parsing invalid pattern shammah 840 pool allocator - local variable shadow patch shammah 836 warning using pool.hpp shammah 386 boost::pool_allocator breaks with vector of vectors shammah 290 perfomance: memory cleanup for pool takes too long shammah 284 pool::purge_memory() does not reset next_size shammah 88 ct_gcd_lcm.hpp compilation error speedsnail 615 thread identification and getting the id speedsnail 204 Add a monitor class speedsnail 194 Exchange results between several thread calls speedsnail 174 cooperation with ACE framework speedsnail 173 more synchronization primitives for the threads classes speedsnail 172 cooperation with ZThread package speedsnail 171 class for function calls that are not thread safe turkanis 869 [iostreams] patch for building by BBv2 turkanis 856 iostreams file_descriptor::write fails under Win32 turkanis 822 Incorrect usage of bad_write()_ bad_seek() etc. turkanis 817 Performance problem in iostreams turkanis 791 iostreams::tee_filter is for output only turkanis 786 bug in iostreams/copy.hpp line 81 turkanis 699 Changing size of memory-mapped file on Windows turkanis 586 iostreams // file_descriptor::seek BUG on files > 4 GB turkanis 579 boost.iostreams file_descriptor and sharing turkanis 525 problem with boost::iostreams when compiled with Visual C++ turkanis 484 Boost.Iostreams and newline translation urzuga 864 [lambda][utility] Make lambda support result<> urzuga 781 Lambda: (_1 + "y")(string("x")) Doesn't Compile urzuga 574 [boost::lambda] Compile error with libstdc++ debug mode urzuga 426 lambda vs pure virtual functions vladimir_prus 1058 Cygwin libraries & GNU libtool vladimir_prus 985 Free features don't work when building boost vladimir_prus 879 Building Boost with Apache C++ Standard Library (STDCXX) vladimir_prus 853 path with spaces not always handled vladimir_prus 428 Please add support for PDSK compilers for x64 and IA64 vladimir_prus 850 program_options strips off escaped quotes in some situations vladimir_prus 808 [program_options] parse_config_file documentation bug vladimir_prus 689 [program_options] Endless loop with long default arguments vladimir_prus 674 find-library for boost decorated names vladimir_prus 644 Boost.Build v2 build script help for evc4 vladimir_prus 469 multitoken broken vladimir_prus 342 program_options Can one have options with optional values? witt 1046 Boost.Python quickstart instructions mention nonexistent target witt 973 zip_iterator has value_type == reference witt 957 The "Getting Started" page does not mention the stdlib option witt 834 Homepage regression links witt 145 filter iterator adaptor should be able to be bidirectional -- -- Marshall Marshall Clow 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

Error in stlport.jam
by rasmus ekman 25 Jul '07

25 Jul '07

Small fix for \tools\build\v2\tools\stlport.jam : line 220 if [ $(rproperties).get <runtime-debugging> ] = "on" { usage-requirements += <define>_STLP_DEBUG=1 <define>_STLP_DEBUG_UNINITIALIZED=1 ; } -- if [ $(rproperties).get <runtime-debugging> ] = "on" ++ if [ $(rproperties).get <runtime-link> ] = "shared" { usage-requirements += <define>_STLP_USE_DYNAMIC_LIB=1 ; } The _STLP_USE_DYNAMIC_LIB should not depend on runtime-debugging setting. A guess, after peeking at builtin.jam etc, is that the --marked line should be replaced with the ++ marked line. re

1 0

boost::python 1.34 & msvc2005 express
by Philippe Vaucher 25 Jul '07

25 Jul '07

Hi guys, Is boost::python supposed to work with msvc2005 ? I took the hello world from "embedding python" and "error_already_set" is being thrown at me... Here's the code I used : #include <iostream> #include <string> #include <boost/python.hpp> using namespace boost::python; void greet() { Py_Initialize(); // Retrieve the main module. object main = import("__main__"); // Retrieve the main module's namespace object global(main.attr("__dict__")); // Define greet function in Python. object result = exec( "def greet(self): \n" " return 'Hello from Python!' \n", global, global); // Create a reference to it. object greet = global["greet"]; // Call it. std::string message = extract<std::string>(greet()); std::cout << message << std::endl; Py_Finalize(); } int main() { greet(); return 0; }

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[Report] 0 regressions on RC_1_34_0 (2007-07-25)
by Douglas Gregor 25 Jul '07

25 Jul '07

Boost Regression test failures Report time: 2007-07-24T10:17:26Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/i… No failures! Yay!

1 0

bjam question
by Jared McIntyre 25 Jul '07

25 Jul '07

I'm trying to get a boost-test bjam file to link to the signals library from the sandbox. Could someone help me with this. Here is a cut down version of what I have: import testing ; project : source-location . : requirements ; { test-suite pinhole : [ run TestStringProperties.cpp ] ; } I'm guessing I need to set something in requirements, but I nothing I've tried has worked. Thanks, Jared

1 0

Boost engine: my two words
by luca regini 24 Jul '07

24 Jul '07

I am writing because i have seen many words spent about a "boost engine" as a way to promote boost. I am an average programmer involved in real life consulting for some big bank firms in Italy and i would like to share my humble point of view. One of the main markets that drives the success of a language is that of enterprise applications. Today the market of enterprise application has moved from desktop and client-server systems to three-tier web applications , so the surge of garbage collected languages like java and c#. In my opinion the success of these languages is strongly depends on the fact that they provide a standard programming environment with a standard library which is very rich in functionality. As today C++ miss a freely available library that compares to the library of java or .NET. True you can find libraries for almost every kind of needs one has, but what is missing is a freely available, complete and coherent library with all the functionality one can find in these languages. Boost success is also due to the fact that it sets a standard for C++, that it contains a coherent sets of libraries and that it covers some of what is already available in other languages. Anyway i see that still boost miss some pieces that are very important for enterprise applications: for example a logging library and a database library. A synchronous networking library could also be needed by some applications. I believe that any effort to promote boost could be better spent on developing this kind of enteprise code. Regards, Luca

4 3

Copyable mutex
by Phillip Hellewell 24 Jul '07

24 Jul '07

Actually I don't want to copy a mutex. I just want my class that has a mutex to be copyable, without having to write a copy ctor and operator= (that copy everything except the mutex). Using this class solves the problem for me, but I have a feeling it is not safe to do this. class recursive_mutex_ignorecopy : public boost::recursive_mutex { public: recursive_mutex_ignorecopy() : boost::recursive_mutex() {} ~recursive_mutex_ignorecopy() {} recursive_mutex_ignorecopy(const recursive_mutex_ignorecopy&) {} recursive_mutex_ignorecopy& operator=(const recursive_mutex_ignorecopy&) {} }; Is this a good solution that could maybe be made part of boost, in such a way that it is guaranteed to work and be safe? Or is there a better solution? Thanks, Phillip Hellewell P.S. Perhaps this is a moot point, sinceI just realized that for thread-safety I really need to write my own copy ctor and operator= anyways, that will be synchronized with my other functions that initialize shared pointers and stuff. And I need to lock the rhs's mutex too...

7 14

units trouble
by Noah Roberts 24 Jul '07

24 Jul '07

First, ignore the value problems and such...I know the tests will fail. Just trying to understand typing for now. In one unit test this compiles and succeeds: CPPUNIT_ASSERT(abs(sr.get<0>() - (773.0 * rpm)) < (1.0 * rpm)); CPPUNIT_ASSERT(abs(sr.get<1>() - (.11666667 * hp)) < (.002 * hp)); That is a custom system (actually a set of independent systems since I was working in units that aren't systemic). "sr" is a tuple containing quantities of the corresponding units. In another unit test trying to work with the SI system this won't compile: vflow_qty Q = 10.0 * gpm; // 0.000630901967 m^3s^-1 vflow_qty x = .6 * m3ps; CPPUNIT_ASSERT( abs(Q - x) < (.00006 * m3ps)); // less than +/- 1% Right now gpm is just another unit instance just like m3ps - I never got past this stage in my unit testing. This DOES compile: CPPUNIT_ASSERT( abs(Q - x) < (.00006)); // less than +/- 1% The compile failure shows that abs() is returning a dimensionless type; this seems to coincide better with the documentation. If this is the case, how did the previous versions work just fine? The rpm and hp units are not dimensionless. Looking at it, the first version doesn't use my own creation of composite dimensions - maybe I don't understand how to do that correctly. Full code of the two setups follows, first is the one that works, second is the one that does not: FIRST---------------- namespace gearpump_system { /// \cond struct gp_sys_press_tag : boost::units::ordinal<101> {}; struct gp_sys_speed_tag : boost::units::ordinal<102> {}; struct gp_sys_flow_tag : boost::units::ordinal<103> {}; struct gp_sys_visc_tag : boost::units::ordinal<104> {}; struct gp_sys_power_tag : boost::units::ordinal<105> {}; /// \endcond /// System for pressure quantities (psi) typedef boost::units::heterogeneous_system<gp_sys_press_tag> pressure_system; /// System for frequency quantities (rpm) typedef boost::units::heterogeneous_system<gp_sys_speed_tag> speed_system; /// System for volumetric flow quantities (gpm) typedef boost::units::heterogeneous_system<gp_sys_flow_tag> flow_system; /// System for kinematic viscosity quantities (ssu) typedef boost::units::heterogeneous_system<gp_sys_visc_tag> visc_system; /// System for power quantities (hp) typedef boost::units::heterogeneous_system<gp_sys_power_tag> power_system; /// \cond typedef boost::units::composite_dimension<boost::units::length_tag, 3, boost::units::time_tag, -1> flow_type; typedef boost::units::composite_dimension < boost::units::length_tag, 2 , boost::units::time_tag, -1 > kinematic_viscosity_type; /// \endcond /// Unit type for pressure quantitien typedef boost::units::unit<boost::units::pressure_type, pressure_system> pressure; /// Unit type for volumetric flow quantities typedef boost::units::unit<flow_type, flow_system> flow_rate; /// Unit for frequency quantities typedef boost::units::unit<boost::units::frequency_type, speed_system> frequency; /// Unit for power quantities typedef boost::units::unit<boost::units::power_type, power_system> power; /// Unit for kinematic viscosity quantities typedef boost::units::unit<kinematic_viscosity_type, visc_system> kinematic_viscosity; // This doesn't work for doxygen. Figure out later maybe... /*! ** \var static pressure psi ** \brief Pressure unit instance */ BOOST_UNITS_STATIC_CONSTANT(psi, pressure); BOOST_UNITS_STATIC_CONSTANT(gpm, flow_rate); BOOST_UNITS_STATIC_CONSTANT(rpm, frequency); BOOST_UNITS_STATIC_CONSTANT(hp, power); BOOST_UNITS_STATIC_CONSTANT(ssu, kinematic_viscosity); /// Pressure values typedef boost::units::quantity<pressure> pressure_qty; /// Volumetric flow values typedef boost::units::quantity<flow_rate> flow_qty; /// Frequency values typedef boost::units::quantity<frequency> frequency_qty; /// Power values typedef boost::units::quantity<power> power_qty; /// Kinematic viscosity values typedef boost::units::quantity<kinematic_viscosity> kinematic_viscosity_qty; ----------------------- SECOND------------ namespace units { using namespace boost::units; namespace gearpump_system { using namespace boost::units::SI; typedef composite_dimension<boost::units::length_tag, 3, boost::units::time_tag, -1> vflow_type; typedef unit<vflow_type, SI::system> vflow; typedef quantity<vflow> vflow_qty; BOOST_UNITS_STATIC_CONSTANT(gpm, vflow_qty); BOOST_UNITS_STATIC_CONSTANT(m3ps, vflow_qty); } }

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[boostbook/boost.build] woes: take 3
by Gennadiy Rozental 24 Jul '07

24 Jul '07

Hi, I still am not able to post in doc list even though I went through all the registration/confirmation steps. Here several more issues I've got 1. No support for manual TOC This is a major issue for me. There are several problems: a) html.xsl includes chunk.xsl b) somehow it doesn't work even if I change it to chunktoc.xsl unless I remove <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/html/chunk-common.xsl"/> from chunk-common.xsl c) it still doesn't work with xsltproc unless I specify chunk.toc parameter in command line. So I can't use bjam anymore 2. Two stage processing I finally figured out why manual xslt invocation doesn't work the reason is that boostbook instead of regular customization layer approach is implemented as a preprocessor step. So I need actually two xslt calls to convert from boostbook to html. Can't we do it in one step? 3. processing instructions in boostbook->docbook conversion are lost I had to add <xsl:template match="processing-instruction()"> <xsl:copy/> </xsl:template> to docbook.xsl to address this 4. library element is converted into chapter This is incorrect decision IMO in general. At least there should be an option to convert it to book (or anything else for that matter) 5. purpose/description/effects/notes elements I completely lost why do we need so many elements with similar purpose, how are they different and when each one should be used. Any help? 6. function synopsis outside library-reference How can I do short function synopsis inside my user's guide code? 7. macro synopsis What should I use for macro synopsis specification? 8. Why signature element is only under overloaded functions and not under regular function element? This asymmetry is inconvenient IMO 9. How can I add --nonet parameter to xsltproc invocation with bjam? Regards, Gennadiy

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