November 2012 - Boost-users - lists.preview.boost.org

Updated serialization performance tests
by Brian Wood 16 Nov '12

16 Nov '12

Shalom I've updated this page -- http://webEbenezer.net/comparison.html with results from Boost 1.52. A few notes about the testing: I decided to use -O2 on the Linux/g++ tests. In previous tests I used -O3. I hadn't updated the Windows test results since the Boost 1.48 time-frame. Around Boost 1.51 I had to start building the serialization library in Boost with runtime-link=static in order to get the Windows tests to build. I haven't understood why that became necessary, but the results for the serialization library in Boost seem to have been adversely affected by this. On Windows, I now report that tests built with the serialization library in Boost are over 1.8 times slower than parallel Ebenezer tests. Previously I reported the tests built with the serialization library in Boost were between 1.7 and 1.8 times slower than the Ebenezer tests. -- Brian Ebenezer Enterprises -- making programming fun again. http://webEbenezer.net

1 0

how to build a release version of my application from source control using boost libs?
by Anil 16 Nov '12

16 Nov '12

Trying to build a release version from source code put into Clearcase source control. Boost is installed on my computer hard disk. what libraries should I copy to the repository? I tried copying libboost_regex-vc90-mt-gd-1_51.lib but it still gave an error. 1>------ Build started: Project: MyApplication, Configuration: Release Win32 ------ 1>Compiling... 1>MyApplication.cpp 1>.\MyApplication.cpp(40) : warning C4627: '#include <boost/property_tree/ptree.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(41) : warning C4627: '#include <boost/property_tree/xml_parser.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(42) : warning C4627: '#include <boost/foreach.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(43) : warning C4627: '#include <boost/lexical_cast.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(44) : warning C4627: '#include <string>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(45) : warning C4627: '#include <set>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(46) : warning C4627: '#include <exception>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(47) : warning C4627: '#include <iostream>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(48) : warning C4627: '#include <fstream>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(49) : warning C4627: '#include "MyApplication.h"': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(50) : warning C4627: '#include <boost/filesystem.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(51) : warning C4627: '#include <boost/regex.hpp>': skipped when looking for precompiled header use 1> Add directive to 'stdafx.h' or rebuild precompiled header 1>.\MyApplication.cpp(875) : fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source? 1>Build log was saved at "file://a:\MyApplication\Release\BuildLog.htm" 1>MyApplication - 1 error(s), 12 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== how to build a release version of my application from source control using boost libs?

1 0

Newbie-Question: recursive_directory_iterator and Unicode
by Andy 16 Nov '12

16 Nov '12

Hi all, i'm using the following code-part to show a file-listing of the current directory: boost::locale::generator gen; std::locale l = gen(""); std::locale::global(l); boost::filesystem::recursive_directory_iterator it(L"."); boost::filesystem::recursive_directory_iterator itEnd; while (it != itEnd) { if (boost::filesystem::status_known(it->status()) && boost::filesystem::is_regular(it->status())) { cout << it->path() << endl; } ++it; } This work's great but not if some files contain unicode-characters. If so, then a lot of ????'s will be printed. Could anyone show me how to print those unicode-characters to stdout? Using wcout won't print anything. I'm new to boost and unicode and i'm not sure if this is a problem of boost! I'm using MinGW (gcc (tdm-1) 4.6.1), Boost 1-52, ICU 50.1 - Output goes to the windows command-prompt (Already tried "chcp 65001") Thanks, Andreas

2 1

Build boost 1.52 on Mac OS X 10.8.2 with Clang c++11
by Kikohs x 15 Nov '12

15 Nov '12

Hello, I cannot compile boost with clang 3.1 on Mac os x 10.8.2. This is what I did: ./boostrap.sh --with-toolset=clang ./b2 toolset=clang cxxflags="-std=c++11 -stdlib=libc++" linkflags="-stdlib=libc++" I also tried without chrono, test, wave and signals. I tried a user-config.jam with using clang-darwin This is the error I have for almost every file: /boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef' file not found It is kind of similar to [ http://stackoverflow.com/questions/8486077/how-to-compile-link-boost-with-c… ] I do have the latest Xcode 4.5.2 with the command line tools installed. Here is part of the console output: Kikohs:trunk kikohs$ ./b2 toolset=clang cxxflags="-std=c++11 -stdlib=libc++" linkflags="-stdlib=libc++" Performing configuration checks - 32-bit : no - 64-bit : yes - x86 : yes - has_icu builds : no warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user-config.jam - gcc visibility : yes - long double support : no warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. Building the Boost C++ Libraries. - iconv (libc) : no - iconv (separate) : yes - icu : no - icu (lib64) : no Component configuration: - atomic : building - chrono : building - context : building - date_time : building - exception : building - filesystem : building - graph : building - graph_parallel : building - iostreams : building - locale : building - math : building - mpi : building - program_options : building - python : building - random : building - regex : building - serialization : building - signals : building - system : building - test : building - thread : building - timer : building - wave : building ...patience... ...patience... ...patience... ...patience... ...found 8672 targets... ...updating 1127 targets... common.mkdir bin.v2/libs/atomic common.mkdir bin.v2/libs/atomic/build common.mkdir bin.v2/libs/atomic/build/clang-darwin-4.2.1 common.mkdir bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug clang-darwin.compile.c++ bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug/lockpool.o In file included from libs/atomic/src/lockpool.cpp:1: ./boost/atomic.hpp:10:10: fatal error: 'cstddef' file not found #include <cstddef> ^ 1 error generated. "clang++" -x c++ -O0 -g -std=c++11 -stdlib=libc++ -O0 -fno-inline -Wall -g -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_ATOMIC_SOURCE -I"." -c -o "bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug/lockpool.o" "libs/atomic/src/lockpool.cpp" Any help would be greatly appreciated, Thank you, Kikohs

2 2

A Special Note for Boost 1.52.0 and Higher - how this affects me?
by Adam Romanek 15 Nov '12

15 Nov '12

Hi, I've just read the Special Note for Boost 1.52.0 and Higher. I must say that I don't fully understand what's going on and how this affects me. I'm using some of Boost's libraries with gcc on Ubuntu. Most often it's gcc 4.4.3, sometimes 4.6.3 but without C++0x mode. Does the change in boost::result_of affect me in any way? Can it make my code fail to compile or make it behave in a different way than before? I just don't understand whether a switch from Boost 1.51.0 to 1.52.0 may do any harm to my code. WBR, Adam Romanek

3 2

[fusion] remove_if and as_vector with Placeholder Expression as predicate
by Felipe Magno de Almeida 15 Nov '12

15 Nov '12

Hello, I'm trying to remove_if a few elements from a fusion sequence. But it is instantiating my predicate with the placeholder from MPL later on. Including with as_vector. The following code generates the error code I'm pasting by the end of the message. I'm using GCC 4.7.2 and Linux x86_64. If I wrap meta_func<mpl::_1> in a mpl::lambda<>::type then the errors following the first error messages is what I get. I'm not sure if I'm doing something wrong here. If anyone could please shed some light, I would really appreciate it. #include <boost/fusion/include/as_vector.hpp> #include <boost/fusion/include/remove_if.hpp> namespace mpl = boost::mpl; namespace fusion = boost::fusion; struct element { typedef mpl::false_ type; }; template <typename T> struct meta_func { typedef typename T::type type; }; int main() { fusion::vector<element, element> e; fusion::as_vector(fusion::remove_if<meta_func<mpl::_1> >(e)); } -- main.cpp: In instantiation of ‘struct meta_func<mpl_::arg<1> >’: ../boost/boost_1_51_0/boost/mpl/aux_/nested_type_wknd.hpp:26:31: required from ‘struct boost::mpl::aux::nested_type_wknd<meta_func<mpl_::arg<1> > >’ ../boost/boost_1_51_0/boost/mpl/not.hpp:39:8: required from ‘struct boost::mpl::not_<meta_func<mpl_::arg<1> > >’ ../boost/boost_1_51_0/boost/fusion/container/vector/detail/preprocessed/as_vector10.hpp:48:36: required from ‘static typename boost::fusion::detail::as_vector<2>::apply<I0>::type boost::fusion::detail::as_vector<2>::call(const Iterator&) [with Iterator = boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<meta_func<mpl_::arg<1> > > >; typename boost::fusion::detail::as_vector<2>::apply<I0>::type = boost::fusion::vector2<element, element>]’ ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:43:44: required from ‘typename boost::fusion::result_of::as_vector<const Sequence>::type boost::fusion::as_vector(const Sequence&) [with Sequence = boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<meta_func<mpl_::arg<1> > > >; typename boost::fusion::result_of::as_vector<const Sequence>::type = boost::fusion::vector2<element, element>]’ main.cpp:22:62: required from here main.cpp:16:28: error: no type named ‘type’ in ‘struct mpl_::arg<1>’ In file included from ../boost/boost_1_51_0/boost/mpl/is_sequence.hpp:17:0, from ../boost/boost_1_51_0/boost/fusion/support/detail/is_mpl_sequence.hpp:12, from ../boost/boost_1_51_0/boost/fusion/support/tag_of.hpp:13, from ../boost/boost_1_51_0/boost/fusion/iterator/next.hpp:10, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector10.hpp:13, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector_fwd.hpp:14, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector.hpp:10, from ../boost/boost_1_51_0/boost/fusion/container/vector/detail/as_vector.hpp:18, from ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:10, from ../boost/boost_1_51_0/boost/fusion/include/as_vector.hpp:10, from main.cpp:2: ../boost/boost_1_51_0/boost/mpl/not.hpp: In instantiation of ‘struct boost::mpl::not_<meta_func<mpl_::arg<1> > >’: ../boost/boost_1_51_0/boost/fusion/container/vector/detail/preprocessed/as_vector10.hpp:48:36: required from ‘static typename boost::fusion::detail::as_vector<2>::apply<I0>::type boost::fusion::detail::as_vector<2>::call(const Iterator&) [with Iterator = boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<meta_func<mpl_::arg<1> > > >; typename boost::fusion::detail::as_vector<2>::apply<I0>::type = boost::fusion::vector2<element, element>]’ ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:43:44: required from ‘typename boost::fusion::result_of::as_vector<const Sequence>::type boost::fusion::as_vector(const Sequence&) [with Sequence = boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<meta_func<mpl_::arg<1> > > >; typename boost::fusion::result_of::as_vector<const Sequence>::type = boost::fusion::vector2<element, element>]’ main.cpp:22:62: required from here ../boost/boost_1_51_0/boost/mpl/not.hpp:39:8: error: ‘value’ is not a member of ‘boost::mpl::aux::nested_type_wknd<meta_func<mpl_::arg<1> > >’ -- -*- mode: compilation; default-directory: "~/dev/test/" -*- Compilation started at Mon Nov 12 15:09:15 bjam -q -j8 ...patience... ...found 584 targets... ...updating 2 targets... gcc.compile.c++ bin/gcc-4.7.2/debug/main.o In file included from ../boost/boost_1_51_0/boost/mpl/is_sequence.hpp:17:0, from ../boost/boost_1_51_0/boost/fusion/support/detail/is_mpl_sequence.hpp:12, from ../boost/boost_1_51_0/boost/fusion/support/tag_of.hpp:13, from ../boost/boost_1_51_0/boost/fusion/iterator/next.hpp:10, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector10.hpp:13, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector_fwd.hpp:14, from ../boost/boost_1_51_0/boost/fusion/container/vector/vector.hpp:10, from ../boost/boost_1_51_0/boost/fusion/container/vector/detail/as_vector.hpp:18, from ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:10, from ../boost/boost_1_51_0/boost/fusion/include/as_vector.hpp:10, from main.cpp:2: ../boost/boost_1_51_0/boost/mpl/not.hpp: In instantiation of ‘struct boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >’: ../boost/boost_1_51_0/boost/mpl/aux_/preprocessed/gcc/apply_wrap.hpp:36:8: required from ‘struct boost::mpl::apply_wrap1<boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >, element>’ ../boost/boost_1_51_0/boost/mpl/aux_/preprocessed/gcc/bind.hpp:144:21: required from ‘struct boost::mpl::bind1<boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >, boost::mpl::bind1<boost::mpl::quote1<boost::fusion::result_of::value_of>, mpl_::arg<1> > >::apply<boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0> >’ ../boost/boost_1_51_0/boost/mpl/aux_/preprocessed/gcc/apply_wrap.hpp:36:8: required from ‘struct boost::mpl::apply_wrap1<boost::mpl::bind1<boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >, boost::mpl::bind1<boost::mpl::quote1<boost::fusion::result_of::value_of>, mpl_::arg<1> > >, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0> >’ ../boost/boost_1_51_0/boost/mpl/aux_/preprocessed/gcc/apply.hpp:42:8: required from ‘struct boost::mpl::apply1<boost::mpl::bind1<boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >, boost::mpl::bind1<boost::mpl::quote1<boost::fusion::result_of::value_of>, mpl_::arg<1> > >, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0> >’ ../boost/boost_1_51_0/boost/fusion/algorithm/query/detail/find_if.hpp:33:35: required from ‘struct boost::fusion::detail::apply_filter<boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::mpl::bind1<boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >, boost::mpl::bind1<boost::mpl::quote1<boost::fusion::result_of::value_of>, mpl_::arg<1> > > >’ ../boost/boost_1_51_0/boost/mpl/if.hpp:67:11: [ skipping 10 instantiation contexts ] ../boost/boost_1_51_0/boost/fusion/support/tag_of.hpp:69:16: required from ‘struct boost::fusion::traits::tag_of<boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > >, void>’ ../boost/boost_1_51_0/boost/fusion/support/tag_of.hpp:77:16: required from ‘struct boost::fusion::detail::tag_of<boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > > >’ ../boost/boost_1_51_0/boost/fusion/iterator/distance.hpp:60:16: required from ‘struct boost::fusion::result_of::distance<boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > >, boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::fusion::vector_iterator<const boost::fusion::vector<element, element>, 2>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > > >’ ../boost/boost_1_51_0/boost/fusion/view/filter_view/detail/size_impl.hpp:27:20: required from ‘struct boost::fusion::extension::size_impl<boost::fusion::filter_view_tag>::apply<const boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > > >’ ../boost/boost_1_51_0/boost/fusion/sequence/intrinsic/size.hpp:68:16: required from ‘struct boost::fusion::result_of::size<const boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > > >’ ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:23:82: required from ‘struct boost::fusion::result_of::as_vector<const boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > > >’ ../boost/boost_1_51_0/boost/fusion/container/vector/convert.hpp:40:5: required by substitution of ‘template<class Sequence> typename boost::fusion::result_of::as_vector<const Sequence>::type boost::fusion::as_vector(const Sequence&) [with Sequence = boost::fusion::filter_view<const boost::fusion::vector<element, element>, boost::mpl::not_<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> > >]’ main.cpp:22:81: required from here ../boost/boost_1_51_0/boost/mpl/not.hpp:39:8: error: ‘value’ is not a member of ‘boost::mpl::aux::nested_type_wknd<boost::mpl::protect<boost::mpl::bind1<boost::mpl::quote1<meta_func, mpl_::void_>, mpl_::arg<1> >, 0> >’ Thanks in advance, -- Felipe Magno de Almeida

4 4

Am I building 64-bit Boost correctly?
by Ramon F Herrera 15 Nov '12

15 Nov '12

I have finally decided to get my feet wet, when it comes to the 64-bit world. Honestly, all my fears turned out to be valid, and then some. I have a MSVS-2010 Solution that includes several varied projects: GUI, libraries (both kids) and Shell Extensions. Since a couple of my projects depend on Boost (the greatest set of libraries ever known to man! Boost rocks! Boost rules!!... but I digress): I decided to start there. Since I am getting some boost-related error messages, I figure that step number zero is to make sure that my Boost installation is healthy. This is how I build it: .\bootstrap.bat .\bjam.exe --with-date_time --with-filesystem --with-regex --with-system --stagedir=. --build-type=complete toolset=msvc-10.0 address-model=64 Notice that the above commands have served me well for years (minus the last parameter, which I am now using for the first time). Is that all I need? TIA, -Ramon

4 5

read_graphml: read more than 1 graph from the same graphml file
by Bartha Attila 15 Nov '12

15 Nov '12

Hello ! Is there a way a to read more than one graph from a .graphml file using read_graphml ? Here's what I tried: -open an input stream to the graphml file; -call a function to read the graph from the file (the function uses read_graphml) and print the graph to stdout; -call the same function again, hoping that the second graph from the file will be read; -close the file input stream. If I call the function once, it works fine and returns the first graph defined in the graphml file. If I call the function the twice, I get the following runtime exception: 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::property_tree::ptree_bad_path> >' what(): No such node (graphml) The graphml file looks like this : <graphml ....header stuff... > <key id= ...key definitions...> <graph id="TestSite1" edgedefault="undirected"> <node id="node0"> <data key="map">map1</data> <data key="x">5.0</data> <data key="y">1.0</data> </node> <node id="node1"> <data key="map">map1</data> <data key="x">5.0</data> <data key="y">4.0</data> </node> <edge source="node0" target="node1"/> </graph> <graph id="TestSite2" edgedefault="undirected"> <node id="node0"> <data key="map">map3</data> <data key="x">6.0</data> <data key="y">2.0</data> </node> <node id="node1"> <data key="map">map4</data> <data key="x">7.0</data> <data key="y">9.0</data> </node> <edge source="node0" target="node1"/> </graph></graphml> I can correctly get the data of TestSite1 graph if I call the function once. How can I get the TestSite2 graph from the same file, or, for that matter, how can I get one specific graph (ex TestSiteN) ? Thanx for any help, -attoparsec-

2 2

Further Boost.MPI development
by Matthias Troyer 15 Nov '12

15 Nov '12

Dear Boost.MPI users, With the MPI-3 standard having been finalized we want to intensify Boost.MPI development as soon as my crazy teaching schedule this fall gives me time from the middle of next month. With the deprecation of the - little used - official MPI C++ API in MPI-3 Boost.MPI has a chance of becoming a de facto standard C++ API for MPI. We first want to focus on features from MPI-2 and MPI-3 that are widely used or useful. For this purpose I would like to collect suggestions. Can you please reply and mention the functions of MPI that you would most like to see supported by Boost.MPI. Best regards Matthias

6 5

[coroutine] errors compiling with clang 3.2
by Marco Craveiro 14 Nov '12

14 Nov '12

Hi boost-users, As reported by Eugene Yakubovich[1], I am seeing problems compiling boost coroutine with clang 3.1 on debian testing. I got my sources from git://gitorious.org/boost-dev/boost-dev.git at commit c083660c54b88ca1ce9a940f4a71bc6c3ab89003. The error I get is: /boost/coroutine/detail/coroutine_object.hpp:54:46: error: expected expression Context * ctx( hldr->data.get().get< 0 >() ); ^ The same code compiles and runs fine with gcc 4.7. In both cases I'm using C++11. I just want to double-check that this is some kind of problem with clang - since 3.2 is on the wings I was wondering if this would be resolved by the upgrade. If anyone has managed to get it working with 3.1 I'd appreciate some pointers. Many thanks for your time, Marco -- So young, and already so unknown -- Pauli blog: http://mcraveiro.blogspot.com [1] http://boost.2283326.n4.nabble.com/Review-Coroutine-reviewstarts-today-Sept…

2 6