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

Re: [Boost-users] boost::asio from C++ Forms App in VS 2010
by Alan Vella 01 Mar '11

01 Mar '11

Hi all, Thanks for your all your replies. I went for managed C++ because I wanted to create a GUI very quickly - Windows Forms are ideal for this and they only work with managed code. Since then I have been busy re-writing the GUI in unmanaged, proper C++ in a new VS project using the Win32API (in the same VS2010 on the same machine). I'm happy to say that I am not experiencing the problems I had before and everything works as it should. Regards, Alan. … [View More]

1 0

Re: [Boost-users] boost 1.39 serialization via base pointer ok on gcc, but crashes on AIX V10.1
by hemant.g＠lycos.com 01 Mar '11

01 Mar '11

1 0

Re: [Boost-users] Compilation error using boost::filtered_graph when trying to access graph properties via boost::graph_bundle
by Tony Cook 01 Mar '11

01 Mar '11

Hi Jeremiah ** Confirmed fixed :) Thanks ** You might want to look at reverse_graph.hpp as it worked around the problem using: typename boost::graph_property_type<base_type>::type& operator[](graph_bundle_t) { return get_property(*this); } typename boost::graph_property_type<base_type>::type const& operator[](graph_bundle_t) const { return get_property(*this); } I adapted this fix approach for my local copy of filtered_graph.hpp like so: typename … [View More]

2 1

Compilation error using boost::filtered_graph when trying to access graph properties via boost::graph_bundle
by Tony Cook 28 Feb '11

28 Feb '11

Hi, The following test program highlights an compilation error issue when using a boost::filtered_graph to access graph properties. I am using Boost 1.46.0 #include <boost/graph/adjacency_list.hpp> #include <boost/graph/filtered_graph.hpp> class TestGraph { class VertexProperties { public: bool mFlag ; } ; class EdgeProperties { public: bool mFlag ; } ; class GraphProperties { public: bool mFlag ; } ; typedef boost::adjacency_list <boost::vecS, … [View More]boost::listS, boost::undirectedS, EdgeProperties, VertexProperties, GraphProperties> GraphType ; template <typename GraphType> class EdgePredicate { public: EdgePredicate () : mpGraph (0) {} public: EdgePredicate (GraphType& vrGraph) : mpGraph (&vrGraph) {} public: template <typename EdgeType> bool operator()(const EdgeType& vEdge) const { return (*mpGraph)[vEdge].mFlag ; } private: GraphType* mpGraph ; } ; template <typename GraphType> class VertexPredicate { public: VertexPredicate () : mpGraph (0) {} public: VertexPredicate (GraphType& vrGraph) : mpGraph (&vrGraph) {} public: template <typename VertexType> bool operator()(const VertexType& vVertex) const { return (*mpGraph)[vVertex].mFlag ; } private: GraphType* mpGraph ; } ; typedef boost::filtered_graph<GraphType, EdgePredicate<GraphType>, VertexPredicate<GraphType> > FilteredGraphType ; ... void foo () { GraphType graph ; FilteredGraphType filter (graph, EdgePredicate<GraphType> (graph), VertexPredicate<GraphType> (graph)) ; graph [boost::graph_bundle].mFlag = true ; filter [boost::graph_bundle].mFlag ; // ***** Does not compile - see below ... } } ... gcc 4.5.2 issues the following error message In member function 'typename boost::graph::detail::bundled_result<Graph, Descriptor>::type& boost::filtered_graph<Graph, EdgePredicate, VertexPredicate>::operator[](Descriptor) [with Descriptor = boost::graph_bundle_t, Graph = boost::adjacency_list<boost::vecS, boost::listS, boost::undirectedS, TestGraph::EdgeProperties, TestGraph::VertexProperties, TestGraph::GraphProperties>, EdgePredicate = TestGraph::EdgePredicate<boost::adjacency_list<boost::vecS, boost::listS, boost::undirectedS, TestGraph::EdgeProperties, TestGraph::VertexProperties, TestGraph::GraphProperties> >, VertexPredicate = TestGraph::VertexPredicate<boost::adjacency_list<boost::vecS, boost::listS, boost::undirectedS, TestGraph::EdgeProperties, TestGraph::VertexProperties, TestGraph::GraphProperties> >, typename boost::graph::detail::bundled_result<Graph, Descriptor>::type = TestGraph::VertexProperties]': Visual Studio 2005 issues this error at the same line (see above) error C2440: 'return' : cannot convert from 'TestGraph::GraphProperties' to 'TestGraph::VertexProperties &' test-graph-types.h(78) : see reference to function template instantiation 'TestGraph::VertexProperties &boost::filtered_graph<Graph,EdgePredicate,VertexPredicate>::operator []<boost::graph_bundle_t>(Descriptor)' being compiled with [ Graph=TestGraph::GraphType, EdgePredicate=TestGraph::EdgePredicate<TestGraph::GraphType>, VertexPredicate=TestGraph::VertexPredicate<TestGraph::GraphType>, Descriptor=boost::graph_bundle_t ] The error originates in boost filtered_graph.hpp line 201 199 // Bundled properties support 200 template<typename Descriptor> 201 typename graph::detail::bundled_result<Graph, Descriptor>::type& 201 operator[](Descriptor x) 203 { return const_cast<Graph&>(this->m_g)[x]; } The bug appears to be that using Descriptor = boost::graph_bundle somehow selects the wrong return type for operator[](Descriptor) selecting TestGraph::VertexProperties instead of the expected TestGraph::GraphProperties This is confirmed by redeclaring the GraphType as typedef boost::adjacency_list <boost::vecS, boost::listS, boost::undirectedS, EdgeProperties, VertexProperties, VertexProperties> GraphType ; i.e. the type for the graph properties happens to be the same as that used for the Vertex properties. Now it compiles cleanly!! Can someone help me locate the origin of this problem. I need to patch this quickly :( It should be noted that there are no problems accessing vertex and edge bundled properties via a filtered_graph - only the graph bundled properties exhibit this issue. TIA Tony [View Less]

2 2

Re: [Boost-users] Boost + ICU in Windows with MinGW
by Jose Mondefo 28 Feb '11

28 Feb '11

In my past email I made a mistake, the ICU configure method I use was a) ./configure --prefix=/mingw/ --enable-static --disable-shared --disable-strict --disable-threads and not b) ./configure --prefix=/mingw/ --disable-strict --disable-threads The a) configure command generates a boost_regex-mt.lib of around 3.5MB. I use the b) command first, but that gives me a boost_regex-mt.lib of about 2MB, and got compilation errors with the freeling library about icu methods not found, for … [View More]example u_tolower_42. From: soloninguno(a)hotmail.com To: boost-users(a)lists.boost.org Subject: Boost + ICU in Windows with MinGW Date: Mon, 28 Feb 2011 15:42:32 -0300 Hi mates, I have a question about boost compiled with icu support for using it in another library (freeling). All this work is in windows using mingw32, the icu 4.2.1 library and boost 1_40. I compile boost with the following bjam line $ bjam toolset=gcc variant=release threading=multi threadapi=win32 link=shared runtime-link=shared --prefix=$PREFIX --user-config=tools/build/v2/user-config.jam -j 2 --with-filesystem --with-program_options --with-regex define=U_STATIC_IMPLEMENTATION=1 -sHAVE_ICU=1 -sNO_BZIP2=1 -sNO_ZLIB=1 --layout=tagged -a --build-type=complete stage I applied the following patch before compilation, without it I don't get the boost_regex-mt.lib and boost_regex_mt.dll, but the libboost_regex-mt.lib. https://build.opensuse.org/package/view_file?file=boost-regexdll.patch&pack… This compilation works great, and also the compilation of the freeling library, which generates an exe. But after that, If I try to run the generated exe (with the boost dlls ) I get this error terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> > what(): Could not initialize ICU resources Could anyone help me undersanding this error? I suppose it has something to do with some missing ICU files, and I'm sure i make some mistake in the compilation process but I didn't get where is it. I also tried building boost with link=static runtime-link=static, but of course if I do that I don't get the boost_regex-mt.lib but the libbost_regex-mt.lib (and i need the dynamic library for compilation of the freeling library). I now this is not the ICU forum, but if it helps for catching the problem ICU was compiled this way a) apply some diffs from this patch http://devs.openttd.org/~terkhen/libicu/libicu_4_6_mingw32.diff (reference link http://wiki.openttd.org/Compiling_on_MinGW#Compiling_libicu) to make it compile in MinGW (not all cause there are some difference between icu 4.2.1 and 4.6). b) After that run $ ./configure --prefix=/mingw/ --disable-strict --disable-threads $ make install This compilation doesn't generate any dll, only the libs for making boost compile. Thanks in advance and best regards, and sorry if this mails is a mess, I only try to give all the information I think is useful. [View Less]

1 0

[asio] basic handle query
by Sean Farrow 28 Feb '11

28 Feb '11

Hi: I need to work with multiple basic handles and have a question: If I have a vector of basic handles and have them associated to the same io_service, do I have to call run everytime a new handle is added? Or will as I'm hoping the first io_service.run pick up the new handles if there added after the initial run call. Any help appreciated. Cheers Sean.

2 1

Can I delete/resize a multi_array??
by Ramon F Herrera 28 Feb '11

28 Feb '11

I recently discovered the multi_array, which was the answer to my prayers: typedef boost::multi_array<string, 2> ExpressionArrayType; ExpressionArrayType exprTable(boost::extents[extreme_row][extreme_col]); But now I need more functionality, which can be either: (1) Erase the current "exprTable" and create a new one, with different dimensions. (2) Resize the current dimensions. I have tried things like: ~exprTable; ~exprTable(); delete &exprTable; I have RTFM and Googled but … [View More]

3 4

[tr1/config] portably including unordered_<X>
by Jim Bell 28 Feb '11

28 Feb '11

It appears that <boost/tr1/unordered_X.hpp> includes the native <unordered_X> when Boost.config says it's able. So if one were writing a portable library that uses boost (or bug-fixing an existing boost component), would including <boost/tr1/unordered_X.hpp> be the way to bring it in, or should one look at BOOST_HAS_TR1_UNORDERED_SET and make a decision that way? There's no mechanism analogous to BOOST_HAS_HASH / BOOST_HASH_<X>_HEADER that has to be navigated, right?

2 1

Re: [Boost-users] boost::asio from C++ Forms App in VS 2010
by Alan Vella 28 Feb '11

28 Feb '11

> On 2/25/2011 3:18 PM, Alan Vella wrote: >> Hi all, >> >> I'm trying to port a C++ project from gcc (on MinGW) to Visual Studio >> 2010 inside a Visual C++ Windows Forms application. The code was >> originally written on a Windows XP 32-bit machine. Now it is being >> ported into a Windows 7 32-bit machine. This project uses quite a few >> boost libraries, including the boost::asio library. When I try to >> compile the code in VS2010 I get the … [View More]

2 1

[regex] Mitigating mischief and malice
by Jim Bell 28 Feb '11

28 Feb '11

Say you wanted to give web users a boost::regex interface to a set of data, knowing that some will try to use it for mischief and malice. I'm vaguely aware that one can write a regex to consume lots of CPU (denial-of-service attack), but also lots of stack and/or memory. What are the risks and how would you address them? Would you filter out certain classes of regular expressions? Tune it via BOOST_REGEX_NON_RECURSIVE and/or other parameters? Would you forbid it altogether? Thanks in Advance, -Jim

3 4

[range] join() and adaptors::transformed do not play nicely with each other
by Nathan Ridge 27 Feb '11

27 Feb '11

Hello, For the following code: #include <vector> #include <boost/range/adaptor/transformed.hpp> #include <boost/range/join.hpp> using boost::adaptors::transformed; using boost::join; int add1(int i) { return i + 1; } int main() { std::vector<int> A, B; auto joined = join(A | transformed(add1), B); } I get the following compiler errors: In file included from ../shared/test/test.cpp:3:0: ../../lib/boost/boost/range/join.hpp: In instantiation of '… [View More]

2 1

[range] joining ranges with different value types, then transforming with a polymorphic functor
by Nathan Ridge 27 Feb '11

27 Feb '11

Hello, I would like to do the following with Boost.Range: #include <vector> #include <boost/range/adaptor/transformed.hpp> #include <boost/range/join.hpp> #include <boost/foreach.hpp> using boost::adaptors::transformed; using boost::join; struct A { int x; }; struct B { int x; }; struct C { int x; }; struct to_C { C operator()(A a) const { return C{a.x}; } C operator()(B b) const { return C{b.x}; } }; int main() { std::vector<A> a; std::… [View More]vector b; BOOST_FOREACH(const C& c, join(a, b) | transformed(to_C())) { // do something } return 0; } Basically, I am joining two ranges with different value types (A and B), then transforming the resulting range with a polymorphic functor (to_C) that converts either of A or B to a common third type, C. When I try to loop through this resulting range, however, I get the following compiler errors: In file included from ../../lib/boost/boost/range/join.hpp:15:0, from test.cpp:3: ../../lib/boost/boost/range/detail/join_iterator.hpp: In member function 'A & boost::range_detail::join_iterator_union< vector<A>::iterator, vector::iterator, A & >::dereference(unsigned int) const': ../../lib/boost/boost/range/detail/join_iterator.hpp:216:42: instantiated from 'boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >::A & boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >::dereference() const' ../../lib/boost/boost/iterator/iterator_facade.hpp:517:32: instantiated from 'static boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >::A & boost::iterator_core_access::dereference( const boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag > & )' ../../lib/boost/boost/iterator/iterator_facade.hpp:643:67: instantiated from 'boost::iterator_facade<I, V, TC, R, D>::A & boost::iterator_facade< I, V, TC, R, D >::operator *() const' ../../lib/boost/boost/iterator/transform_iterator.hpp:121:31: instantiated from 'boost::detail::transform_iterator_base< to_C , boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >, boost::use_default, boost::use_default >::type::C boost::transform_iterator< UnaryFunction , boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >, boost::use_default, boost::use_default >::dereference() const' ../../lib/boost/boost/iterator/iterator_facade.hpp:517:32: instantiated from 'static boost::transform_iterator< to_C , boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >, boost::use_default, boost::use_default >::C boost::iterator_core_access::dereference( const boost::transform_iterator< to_C , boost::range_detail::join_iterator< vector<A>::iterator, vector::iterator, A, A & , boost::random_access_traversal_tag >, boost::use_default, boost::use_default > & )' ../../lib/boost/boost/iterator/iterator_facade.hpp:643:67: instantiated from 'boost::iterator_facade< I, V, TC, R, D >::C boost::iterator_facade<I, V, TC, R, D>::operator *() const' ../../lib/boost/boost/foreach.hpp:748:58: instantiated from 'boost ::foreach_detail_::foreach_reference< boost::range_detail::transformed_range< to_C, const boost::joined_range<vector<A>, vector > >, mpl_::bool_<true> >::ame boost::foreach_detail_::foreach_reference<T, C>::type = C boost ::foreach_detail_::deref( boost::foreach_detail_::const boost::foreach_detail_::auto_any_base & , boost::foreach_detail_::type2type< boost::range_detail::transformed_range< to_C, const boost::joined_range<vector<A>, vector > >, mpl_::bool_<true> > * )' test.cpp:23:5: instantiated from here ../../lib/boost/boost/range/detail/join_iterator.hpp:71:37: error: no match for ternary 'operator?:' in '(selected != 0u) ? this->boost::range_detail ::join_iterator_union<vector<A>::iterator, vector::iterator, A &> ::m_it2.vector<A>::iterator::operator *() : this->boost::range_detail ::join_iterator_union<vector<A>::iterator, vector::iterator, A &> ::m_it1.vector<A>::iterator::operator *()' Is there a way to do this? Thanks, Nate. [View Less]

2 1

BGL - color map assertion failed
by Krisztian Sinka 27 Feb '11

27 Feb '11

Hi, I have the following code using Boost Graph Library to use the breadth-first-search: -------- code start -------- template<typename T> class MyVisitor : public boost::default_bfs_visitor{ public: MyVisitor(T& d): boost::default_bfs_visitor(),d_(d) {}; template<typename E, typename G> void tree_edge(E e,const G& g) const { typedef typename boost::graph_traits<G>::vertex_descriptor VD; VD u = boost::source(e,g); VD v = boost::target(e,g); d_[u].… [View More]

2 1

[lexical_cast] locale dependent result?
by Alexander Lamaison 27 Feb '11

27 Feb '11

Is the result of lexical_cast<std::string> locale-dependent? One of my contributors has submitted a fix for a problem he says is caused by lexical_cast adding commas to a port number, e.g.: 65535 becomes "65,535". I'm unable to reproduce this but it may be something specific to his locale. If this is the case, what would be the correct way to get a canonical, locale-independent string from an integer? Thanks. Alex -- Easy SFTP for Windows Explorer (http://www.swish-sftp.org)

1 0

[Review] Phoenix V3: Mini-review starts February 20th
by Hartmut Kaiser 27 Feb '11

27 Feb '11

Hi all, Thomas Heller worked hard to address the outstanding issues of the original Phoenix review. He ported Phoenix to Boost.Proto. As mandated by the original Boost review, we will conduct a mini-review of his Phoenix V3 library. This mini-review starts today, February 20th, 2011 and ends on March 2nd, 2011. ------------------ About the library: The Phoenix library enables FP techniques such as higher order functions, lambda (unnamed functions), currying (partial function application) … [View More]and lazy evaluation in C++. The focus is more on usefulness and practicality than purity, elegance and strict adherence to FP principles. Phoenix is a very important infrastructure library. It is currently a utility library included with Spirit V2 and therefore is already available for years from the latest Boost distributions (headers: $BOOST_ROOT/boost/spirit/home/phoenix, docs: $BOOST_ROOT/libs/spirit/phoenix, or http://www.boost.org/doc/libs/1_45_0/libs/spirit/phoenix/index.html) ------------------ The code of new Phoenix V3 (that's what we mini-review) can be found at: https://svn.boost.org/svn/boost/sandbox/SOC/2010/phoenix3/ the documentation is at: http://svn.boost.org/svn/boost/sandbox/SOC/2010/phoenix3/libs/phoenix/doc/ht ml/index.html ------------------ Here are the questions raised during the initial review of Phoenix in September 2008 (see here: http://thread.gmane.org/gmane.comp.lib.boost.devel/180753) <quote> We will have a mini review before Phoenix gets merged to SVN to make sure whether the feedback from the v2 review was accommodated. Additionally this review will have to discuss: - the breaking interface changes from v2 - the migration path from boost::bind and lambda to Phoenix - how the interoperability with std::bind is solved (result_of semantics) - C++0x features such as rvalue references and variadic templates - the new extensibility mechanism - unified placeholders and interoperability issues with other Proto-based DSELs (such as Spirit.Qi, Spirit.Karma, and Xpressive) - compile times </quote> Please note that Phoenix already has been accepted as a Boost library. We don't vote about that anymore. The purpose of this mini-review is to discuss if the newly rewritten Phoenix V3 addresses the outstanding issues from the main review. In the end I will have to make the decision whether to include the new library into SVN trunk. I really hope to see your participation in the discussions on the Boost mailing lists! Regards Hartmut Review Manager --------------- http://boost-spirit.com [View Less]

5 18

[dateTime] construting a date with time
by Sean Farrow 27 Feb '11

27 Feb '11

Hi: I'm currently doing some work with the boost date time library. Can the boost date class be constructed with a time, or do I need a separate time variable as well? If so, should I use a local time, or posix time, given that the time has already been converted from utc to the users timezone. Any help appreciated. Regards Sean.

2 1

[Review] Phoenix V3: mini-review starts February 19th
by Hartmut Kaiser 27 Feb '11

27 Feb '11

Hi List, Phoenix V3 is nearing its completion. With the port to Boost.Proto we tried to address the outstanding issues of the review and would like to announce that the mini-review will start on February 19th. Feel free to preview the code at: https://svn.boost.org/svn/boost/sandbox/SOC/2010/phoenix3/ and the documentation at: http://svn.boost.org/svn/boost/sandbox/SOC/2010/phoenix3/libs/phoenix/doc/ht ml/index.html We are currently occupied with code cleanups and finishing of the … [View More]

9 17

[Filesystem] V3 interface inconsistency
by Peter Klotz 27 Feb '11

27 Feb '11

Hello I came across the following interface inconsistency in Boost.Filesystem V3 (Boost 1.46.0) in boost::filesystem::path Windows: const std::string string() const std::wstring& wstring() Linux: const std::string& string() const std::wstring wstring() We converted V2 code looking like this (necessary since filename() in V3 returns a path instead of a string): const std::string& filename=path.filename(); The converted V3 code: const std::string& filename=path.… [View More]

3 3

[Serialization] Testing if a provided file is actually a serialized archive
by Cedric Laczny 26 Feb '11

26 Feb '11

Hi, I would like to know if there exists a way to check for a given file if it is actually a serialized archive or a pure txt-file, at best without the need to read in that file completely. At the moment, I use boost::serialization to store self-defined class-instances in txt-files, so using something like the system's "file"-command would not bring me far. Now I would like my program to distinguish if the provided input-argument is a text-file that needs to be parsed or if it can simply … [View More]

2 1

XInt formal review forthcoming
by Vladimir Prus 25 Feb '11

25 Feb '11

Boosters, the review of Boost.XInt library, by Chad Nelson, is scheduled to start on Wednesday, March 2, and will run through Friday, March 11. I will be serving as review manager. Over the years, arbitrary precision arithmetics has been a hot topic on Boost mailing lists, but now we have a concrete proposal that may become an official Boost library. So, block the time on your calendar, and get ready. Thanks, -- Vladimir Prus Mentor Graphics +7 (812) 677-68-40

1 0

obtaining the current timezone
by Sean Farrow 25 Feb '11

25 Feb '11

Hi: Is there a way using boost.datetime to obtain the current time zone. If not given the platform dependent nature of this what is the best way to write this so as to allow potential future integration in to the date time library. Regards Sean.

2 1

[asio] using io completion ports
by Sean Farrow 25 Feb '11

25 Feb '11

Hi: Are there any examples in boost.asio that useio completion ports, and automatically obtain the queued input from them asynchronously? Cheers Sean.

2 1

Bug in boost::phoenix ?
by Nicolas Savoire 25 Feb '11

25 Feb '11

I am using boost::phoenix lambda functions and I am observing some weird behaviours when compiling with optimizations (-O3). The first issue is that compiling the following piece of code Compiling: const float x = 1.0f; const float y = 1.0f; std::cout << (arg1+arg2)(x,y); with g++ -Wall gives the warning: boost_1_46_0/boost/spirit/home/phoenix/operator/arithmetic.hpp:74:5: warning: returning reference to temporary And I suspect a bug in the project I am working on is a … [View More]

2 2

Android NDK bjam toolset
by a b 25 Feb '11

25 Feb '11

Hello to everyone, I am interested if there is Android NDK support as a toolset in bjam, to build android binaries And if there is, some documentation would be also usefull. Thanks

1 0

[config] platform macro
by Sean Farrow 25 Feb '11

25 Feb '11

Hi: What is the platform macro if boost is built on a win64 machine? I'm currently using this to detect the platform and selectively include files/file content and need to build on a win64 box. Any help appreciated. Cheers Sean.

2 1

[1.46] PDF Build of the docs available
by John Maddock 25 Feb '11

25 Feb '11

A PDF build of Boost's documentation for 1.46 is now available from: http://sourceforge.net/projects/boost/files/boost-docs/1.46.0/ Note that this only includes that subset of Boost which uses quickbook/boostbook/docbook for documentation. Enjoy, John.

2 2

[Serialisation] Using wide character
by Vincent Capicotto 25 Feb '11

25 Feb '11

Hi, first sorry for my bad English. I try to use wide characters with archive to serialize into xml, and I don't know the good way to do this. Until now, we used serialization with ASCII characters and it works fine. This is the part of the code for the ASCII: *std::ifstream oInputStream(szXmlDefinition.c_str()); boost::archive::xml_iarchive oXmlInputArchive(oInputStream); oXmlInputArchive >> SERIALIZE_MEMBER(szNomObjet, oObjet );* For the UNICODE I try to use wiarchive … [View More]

2 2

License information
by Daniele Niero 24 Feb '11

24 Feb '11

Hi All, I have read the boost license and I think I can do what I need, but to be sure I prefer to ask your opinion. I'm working at a very small project and I would like to keep the dependencies to external library as more contained as possible. I'm now in the situation where I need boost::any class... Do you think I can simply take the boost/any.hpp file, including both license and author copyright and modify it to make it compile in my project. Am I violation the license if I do so? Thanks … [View More]

2 2

input format library
by Daniel Neuberger 24 Feb '11

24 Feb '11

Is there any work being done on an input format library for Boost? Something similar to Boost.Format but for input rather than output? Google tells me that this has been discussed before, but I couldn't find any resolution of the issue. I'm interested because I need something like sscanf, but want it to be more powerful and safer (like Boost.Format vs. fprintf). I know there are workarounds using Boost.Spirit, Boost.Regex, std::istream, and boost::lexical_cast, but in my mind, none of … [View More]

1 0

using the sandbox(es)
by Alle Meije Wink 24 Feb '11

24 Feb '11

Dear all, My code uses some files from the boost sandbox repository as well as from boost. To be able tom compile my own code and stay up to date, I have downloaded and installed boost (svn, bjam) and downloaded the sandbox (svn). Now building boost was simple: create a build/ directory and call "bjam -a --toolset=gcc --build-dir=build --variant=release --link=shared --threading=multi --runtime-link=shared install" or something very similar In the sandbox things seem to be a bit differently. … [View More]

3 7

BOOST_ASIO_DISABLE_FENCED_BLOCK
by tkolo＠poczta.fm 24 Feb '11

24 Feb '11

Hi, I had to set BOOST_ASIO_DISABLE_FENCED_BLOCK to be able to copmile on Solaris 9. What does this exacly disables because I can't find any documentation for it? Problems I have encountered are similar to those: https://svn.boost.org/trac/boost/ticket/4376. Regards, Tomek. ---------------------------------------------------------------- Jedz ile chcesz i chudnij! Sprawdź >>> http://linkint.pl/f2904

1 0

[boost][boost-users][ICL] ICL Compilation errors. Ticket #5207
by Joachim Faulhaber 24 Feb '11

24 Feb '11

Hi John, lists, I am replying to your ticket #5207 on the lists because I am afraid that you walked into a trap that others can fall into as well. In the ITL, the precursor of Boost.ICL there was a single polymorphic interval class template: itl::interval. Due to input from the list during the review I split up this "one size fit's all" template in smaller classes according to static and dynamic interval concepts. In order to help ITL users to have a simple transition from ITL to ICL I wrote … [View More]a template icl::interval. icl::interval is a meta function that yields the right interval type dependent on the instance type e.g. : BOOST_STATIC_ASSERT(( boost::is_same< interval<int>::type , discrete_interval<int> >::value )); So ITL users could move from ITL to ICL just by appending a '::type' to all occurrences of 'interval<T>' So please note that interval<myType> myInterval; can not be used as an interval type in ICL functions. Please use interval<myType>::type myInterval; or one of the specific interval types discrete_interval, continuous_interval, (dynamic borders) closed_interval, right_open_interval, left_open_interval, open_interval (static borders) e.g. discrete_interval<int> myInterval; See examples http://www.joachim-faulhaber.de/boost_icl/doc/libs/icl/doc/html/boost_icl/e… http://www.joachim-faulhaber.de/boost_icl/doc/libs/icl/doc/html/boost_icl/e… http://www.joachim-faulhaber.de/boost_icl/doc/libs/icl/doc/html/boost_icl/e… and docs http://www.joachim-faulhaber.de/boost_icl/doc/libs/icl/doc/html/boost_icl/i… for more detail. This reduces John's non compilable ICL statements in the following way: BOOST_AUTO_TEST_CASE(ticket_5207) { icl::interval< int >::type int_interval; icl::interval_set< int > int_set; icl::interval_map< int, int > int_map; icl::interval_map< int, int >::element_type int_element; icl::interval_map< int, int >::segment_type int_segment; // The next 4 lines compile icl::lower( int_interval ); icl::upper( int_interval ); icl::first( int_interval ); icl::last( int_interval ); // The next 4 lines are *not* supposed to compile // according to the docs: icl::add( int_set, int_set ); icl::add( int_map, int_map ); icl::subtract( int_set, int_set ); icl::subtract( int_map, int_map ); int_set += int_interval; // compiles // Here you are right, John: // The next 4 lines should compile according // to the docs, but don't icl::disjoint( int_map, int_element ); icl::disjoint( int_map, int_segment ); icl::intersects( int_map, int_segment ); icl::intersects( int_map, int_element ); // Those four are pretty special. I doubt anyone will // use them. But I will complete the library here. } Thanks for using my library and helping to improve it. Joachim -- Interval Container Library [Boost.Icl] http://www.joachim-faulhaber.de [View Less]

2 11

Undefined reference to boost_serialization even though it is specified with -lboost_serialization
by Cedric Laczny 24 Feb '11

24 Feb '11

Sorry, my bad. Hit "Send" before being finished... So let's start again... I apologize. Hi, I have a program that uses serialization-functionality for some of the self- defined classes. I specify "-lboost_serialization" with the g++ and it works fine on my local machine. However, when I want to compile it on a remote machine, it fails. The remote machine is lacking >=boost-1.42 which is needed. Therefore I built (no install) boost-1.45 remotely (under /local/cedric/boost_1_45_0) and … [View More]at least the configure-script (generated using autotools) seems to detect all the necessary libraries and headers (provided I specify them in the environment variables), on my local machine aswell as on the remote machine. Now the problem is, that I don't find the reason why it fails to compile my program remotely... Any ideas? Here's the command used for linking: /bin/bash ../libtool --tag=CXX --mode=link g++ -Wno-deprecated -g -O2 - lboost_serialization -L/local/cedric/boost_1_45_0/stage/lib -o test test- main.o ../includes/Parser/libparser.a -lgsl -lgslcblas -lm and an excerpt of the error (taken from the end): ... MicroCosmParser.cpp: (.text._ZN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI15MicroCosmParserEEED0Ev[boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<MicroCosmParser> >::~singleton_wrapper()]+0x17): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::type_unregister()' MicroCosmParser.cpp: (.text._ZN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI15MicroCosmParserEEED0Ev[boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<MicroCosmParser> >::~singleton_wrapper()]+0x1f): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::~extended_type_info_typeid_0()' MicroCosmParser.cpp: (.text._ZN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI15MicroCosmParserEEED0Ev[boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<MicroCosmParser> >::~singleton_wrapper()]+0x39): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::~extended_type_info_typeid_0()' ../includes/Parser/libparser.a(MicroCosmParser.o): (.rodata._ZTVN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI15MicroCosmParserEEEE[vtable for boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<MicroCosmParser> >]+0x10): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::is_less_than(boost::serialization::extended_type_info const&) const' ../includes/Parser/libparser.a(MicroCosmParser.o): (.rodata._ZTVN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI15MicroCosmParserEEEE[vtable for boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<MicroCosmParser> >]+0x18): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::is_equal(boost::serialization::extended_type_info const&) const' ../includes/Parser/libparser.a(MicroCosmParser.o): (.rodata._ZTIN5boost13serialization25extended_type_info_typeidI15MicroCosmParserEE[typeinfo for boost::serialization::extended_type_info_typeid<MicroCosmParser>]+0x18): undefined reference to `typeinfo for boost::serialization::detail::extended_type_info_typeid_0' ../includes/Parser/libparser.a(MicroCosmParser.o): (.rodata._ZTVN5boost13serialization25extended_type_info_typeidI15MicroCosmParserEE[vtable for boost::serialization::extended_type_info_typeid<MicroCosmParser>]+0x10): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::is_less_than(boost::serialization::extended_type_info const&) const' ../includes/Parser/libparser.a(MicroCosmParser.o): (.rodata._ZTVN5boost13serialization25extended_type_info_typeidI15MicroCosmParserEE[vtable for boost::serialization::extended_type_info_typeid<MicroCosmParser>]+0x18): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::is_equal(boost::serialization::extended_type_info const&) const' collect2: ld returned 1 exit status Best, Cedric [View Less]

3 7

Help needed with successive calls to Asio routines using the plain old Windows API
by Adolfo Jimenez 24 Feb '11

24 Feb '11

Hi all: Using MS Visual Studio 2008 C++ for Windows 32 (XP brand), I try to construct a POP3 client managed from a modeless dialog box. As a first step, in the WM_INITDIALOG message in the dialog-box-procedure, I create a persistent object -say pop3- with all that Boost.asio stuff to do asynchronous connections. Some like: case WM_INITDIALOG: return (iniPop3Dlg (hDlg, lParam)); Here we assume that iniPop3Dlg() create the pop3 heap object -say pointed out by pop3p-, and then,… [View More] connect with the remote server and initiate a session with the client’s id and password (USER and PASS commands). After that, the server is in TRANSACTION state. Then, in response to some user input, the dialog-box-procedure, call the appropriate function. Say: case IDS_TOTAL: // get how many emails in the server total (pop3p); return FALSE; case IDS_DETAIL: // get date, sender and subject for each email in the server detail (pop3p); return FALSE; Note that total() uses the POP3’s STAT command to get how many emails in the server, while detail() uses two commands consecutively; first STAT to get the total and then a loop with the GET command to retrieve the content of each message. As an aside: detail() and total() share the same subroutines -the STAT handle routine-, and when finished, both leaves the session as-is. That is, without closing the connection; the socket remains opened an the server in TRANSACTION state. When any option is selected by the first time, the things run as expected, obtaining the desired results. But when making the second chance, the connection hangs. A closer inspection show that the in the second chance, the first time that is use the statement socket_.get_io_service().run(); It never return. Note that all asynchronous wirte an read routines uses the same io_service, and the socket_.get_io_service().reset(); sentence prior to any io_service.run() Note also that all R/W operations also uses the same timer, who is reseted to cero wait afther each operation is completed: dTimer_.expires_from_now (boost::posix_time::seconds(0)); I suspect that the problem is in the io_service or in the timer, and the fact that subsequent executions occurs in a different load of the routine. As a first approach to mi problem, I hope that someone would bring some light in it, prior to a more detailed exposition of the -very few and simple- Asio routines involved. [View Less]

1 0

Undefined reference to boost_serialization even though it is specified with -lboost_serialization
by Cedric Laczny 24 Feb '11

24 Feb '11

Hi, I have a program that used serialization-functionality for some of the self- defined classes. I specify "-lboost_serialization" with the g++ and it works fine on my local machine. However, when I want to compile it on a remote machine, that is unfortunately lacking Boost-1.42 (needed due to lookup_edge.hpp) it fails to compile

1 0

boost::interprocess::interprocess_semaphore::timed_wait - how to do a relative wait
by Jean-Sebastien Stoezel 24 Feb '11

24 Feb '11

Hi: I'm using boost::interprocess::interprocess_semaphore::timed_wait and boost::interprocess::message_queue::timed_received. I have to specify an absolute time to give up waiting/receiving. This works in most cases, except my application sometimes needs to adjust the PC clock. If the PC clock is adjusted backwards in time, then these function wait longer than they should (since the end time is fixed in the future). Ideally I would like to provide an absolute time instead, which would be … [View More]

3 4

My Apologies -- Please Disregard
by Robert Pennington 23 Feb '11

23 Feb '11

All, If you received any emails from me today (from robpennington84(a)gmail.com) please disregard them; my account was targeted by a spammer. Those responsible have been sacked. Those responsible for sacking the people who have just been sacked, have also been sacked. Thanks, Rob Pennington

1 0

Re: [Boost-users] (no subject)
by Robert Pennington 23 Feb '11

23 Feb '11

Good result. 100% of pleasure... http://www.de-beste-casino-online.com/links.php?owgoogle=637

1 0

Re: [Boost-users] [Filesystem] Symbol not found: boost::filesystem2::detail::status_api
by Nicolas Chaumont 23 Feb '11

23 Feb '11

Hello Júlio, Thanks for your reply. I've tried to pass the libraries that I needed in a past attempt. It didn't help. If I don't specify any library to bootstrap.sh, all the libraries are built. This way, I'm sure I don't miss anything. It also makes the explanation of what I did more straightforward. I'll definitely have a closer look at the doc. I might have missed something, although it would be surprising to have to modify something in the configuration to make such a simple example … [View More]

1 0

cannot find config script in Boost 1.45.0_1 mac os x (snow), g++ 4.2.1
by ny 23 Feb '11

23 Feb '11

Hi, I wonder if my boost set-up is the "proper" one since I cannot find config script as described in here http://goo.gl/yPe9V Any ideas? Nikos Yiotis Chat Skype: nyiotis Contact Me [image: Linkedin]<http://my.wisestamp.com/link?u=ws7c27w2vnrx4d2b&site=www.linkedin.com/in/yi…>

3 5

Boost release 1.46.0 available
by Beman Dawes 23 Feb '11

23 Feb '11

Release 1.46.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release includes 1 new library (Interval Container Library) as well as updates to many existing libraries. For details, including download links, see http://www.boost.org/users/news/version_1_46_0 The release can also be downloaded … [View More]

2 1

Re: [Boost-users] [boost] Boost release 1.46.0 available
by Daniel James 23 Feb '11

23 Feb '11

On 22 February 2011 15:33, Vladimir Prus <vladimir(a)codesourcery.com> wrote: > > It's not. I suggest any links to bjam be removed. OK, I'll remove the link on the home page soon. >> then it probably also means that the build and jam >> documentation on the site are out of date. > > At which URL specifically? I think all documentation for Boost.Build > is up to date. Also, there should be no documentation for Boost.Jam now. http://www.boost.org/tools/jam/ l … [View More]

2 3

[Filesystem] Symbol not found: boost::filesystem2::detail::status_api
by Nicolas Chaumont 23 Feb '11

23 Feb '11

Hello and thank you for reign my post, When I want to compile the program: #include "boost/filesystem.hpp" int main(int argc, char** argv) { boost::filesystem::path path; boost::filesystem::exists(path); //<=This is the line that causes the error return 0; } I get the following error: "boost::filesystem2::detail::status_api(std::basic_string<char, std::char_traits <char>, std::allocator<char> > const&, boost::system::error_code&)", referenced from:… [View More]

2 1

boost::transform_iterator and C++0x decltype
by Nathan Ridge 23 Feb '11

23 Feb '11

Hello, Currently (boost 1.46) boost::transform_iterator requires that the unary functor 'f' passed to it use the 'result_of' protocol to declare its return type (that is, it must either have a nested 'result_type' typedef, or in the case of polymorphic functions, a nested 'result' metafunction that computes the return type given the parameter type). Would it be a good idea to modify the requirements so that if the boost library detects C++0x support, it uses 'decltype' to determine the … [View More]

2 1

[spirit] how to write parser for matching character not in list ?
by Kamil Zubair 23 Feb '11

23 Feb '11

Let's say I want to match a string and that string cannot contain character ; and @. How to write parser for that ? I try using: *(!(';"'|'@')) and *(char_ - ';'|'@') but both are failed to compile. Thanks.

2 1

Build error 1.46
by gast128 23 Feb '11

23 Feb '11

Hello all, I got a build error when building Boost 1.46 on Visual Studio 2003 (MSVC 7.1) in Boost.Fusion: compile-c-c++ bin.v2\libs\math\build\msvc-7.1\debug\pch-off\threading-multi\asso c_legendre.obj assoc_legendre.cpp boost\fusion\sequence\comparison\less_equal.hpp(49) : error C2039: 'is_native_fu sion_sequence' : is not a member of 'boost::fusion::detail' boost\fusion\sequence\comparison\less_equal.hpp(49) : error C2065: 'is_native_fu sion_sequence' : undeclared identifier boost\fusion\… [View More]

6 11

issues having upgraded to 1.46
by Sean Farrow 23 Feb '11

23 Feb '11

Hi: Having upgraded and build 1.46, I'm getting the error: 1>LINK : fatal error LNK1104: cannot open file 'libboost_system-vc100-mt-gd-1_45.lib' Can someone tell me where the linking is controlled, I've done a search in the entire boost directory, but carn't find where this could be happening! I'm using the boost.filesystem library, and elements boost::system::error_code from boost.system. Anyone give me some pointers! Cheers Sean.

2 2

Conditions for casting stream_buffer to std::basic_streambuf
by Tyler Weston 22 Feb '11

22 Feb '11

Hi All, How do you construct an std::ostream from a boost::iostreams::stream_buffer<io::back_insert_device<...> > ? Is this not possible with a simple sink_tag for the category? I'm using libpng and want to abstract writing to a file directly or to a memory buffer. libpng provides hooks for write and flush functions, and never seeks. I implemented these functions for std::ostream and it works great for file writing. My assumption that it would be trivial to provide a std::ostream … [View More]to a memory buffer turned out to be incorrect. Unfortunately type information is lost through libpng as you have to pass your io data as void*, which makes using templatized stream classes difficult. In the tutorial for iostreams it says: "The template io::streamis provided as a convenience. It's always possibly to avoid io::stream and simply use io::stream_buffer together with one of the standard library stream templates." I tried following this pattern, and it works great for files: io::file_sink sink(filename, std::ios_base::out | std::ios_base::trunc | std::ios_base::binary); io::stream_buffer<io::file_sink> streamBuf(sink); std::ostream pngStream(&streamBuf); However, I am having problems providing an ostream for the memory buffer case. shared_ptr<vector<char> > vec(new vector<char>()); io::back_insert_device<vector<char> > sink(*vec); io::stream_buffer<io::back_insert_device<vector<char> > > streamBuf(sink); std::ostream pngStream(&streamBuf); This snippet produces the following error in msvc 9 with boost 1.45. 2>error C2664: 'std::basic_ostream<_Elem,_Traits>::basic_ostream(std::basic_streambuf<_Elem,_Traits> *,bool)' : cannot convert parameter 1 from 'boost::iostreams::stream_buffer<T> *' to 'std::basic_streambuf<_Elem,_Traits> *' 2> with 2> [ 2> _Elem=char, 2> _Traits=std::char_traits<char> 2> ] 2> and 2> [ 2> T=boost::iostreams::back_insert_device<std::vector<char>> 2> ] 2> and 2> [ 2> _Elem=char, 2> _Traits=std::char_traits<char> 2> ] 2> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast I noticed file_sink::category has more tags than back_insert_device::category, so I took the container_device in the tutorial and implemented all the tags that file_sink has, and still get the same error. Digging farther I see that basic_file::impl contains an actual std::basic_filebuf which can be casted to basic_streambuf. The basic_filebuf is private member of a private member, so shouldn't be accessible for normal casting and I don't see the cast explicitly provided. How does the file_sink to basic_streambuf cast work? How can I implement this cast for container_device without inheriting and overriding all of the methods of basic_streambuf? Is there an abstract parent class to boost::iostreams::stream or stream_buffer that allows for polymorphism to ease the pain of the required void* cast? I'm still relatively new to metaprogramming patterns. As a side note, the tutorial continues to suggest default-constructing a std::ostream, which is not possible at least with msvc's std implementation. [View Less]

1 0

[Thread] Interrupting a thread causes a segmentation fault
by W Frane 22 Feb '11

22 Feb '11

Hello, I'm new to the Boost libraries and I've been attempting to implement basic multithreading using the Boost Thread library. I'm currently experiencing a problem: when I interrupt a thread my program crashes with a segmentation fault. I've done quite a bit of research on the internet regarding this problem and, although similar problems have been reported before, none of the solutions have worked for me (a number of people have indicated that interrupts work when linking with the static … [View More]library, just not with the dynamic library, but I was using the static library to begin with). Technical details are: Boost version: 1.45.0 Compiler: MinGW 4.4.1 IDE: Code Blocks 10.05 The build log output from Code Blocks is: mingw32-g++.exe -Wall -fexceptions -g -I"C:\Program Files\boost\boost_1_45_0" -c "C:\Documents and Settings\WFrane\My Documents\C++ code\boost thread interrupt test\boost_thread_interrupt_test\main.cpp" -o obj\Debug\main.o mingw32-g++.exe -L"C:\Program Files\boost\boost_1_45_0\stage\lib" -o bin\Debug\boost_thread_interrupt_test.exe obj\Debug\main.o "C:\Program Files\boost\boost_1_45_0\stage\lib\libboost_thread-mgw44-mt-d-1_45.a" (I've also tried a release build with the appropriate version of the Boost.Thread library and the resulting program experiences the same problem.) I've included a short program below that exhibits this problem. Any suggestions as to what might be causing this and how it could be resolved would be appreciated. Regards, W. Frane EXAMPLE CODE: #define BOOST_THREAD_USE_LIB // This line was necessary to link with the static libraries. #include #include using namespace std; boost::mutex mutexCout; void testingThread(){ try{ while(1){ boost::this_thread::interruption_point(); } } catch(boost::thread_interrupted const& e){ // Thread was interrupted. mutexCout.lock(); cout << "THREAD: Ending." << endl; mutexCout.unlock(); } catch(...){ mutexCout.lock(); cout << "THREAD: Unknown exception." << endl; mutexCout.unlock(); } } int main(int argc, char* argv[]) { boost::thread testThread(testingThread); mutexCout.lock(); cout << "MAIN: Created thread; sleeping now." << endl; mutexCout.unlock(); boost::this_thread::sleep(boost::posix_time::seconds(4)); mutexCout.lock(); cout << "MAIN: About to interrupt thread." << endl; mutexCout.unlock(); testThread.interrupt(); // Segmentation fault occurs around here during program execution. mutexCout.lock(); cout << "MAIN: Sent interrupt to thread." << endl; mutexCout.unlock(); testThread.join(); cout << "MAIN: Thread has ended." << endl; return 0; } [View Less]

5 12

Re: [Boost-users] [boost] Boost release 1.46.0 available
by Daniel James 22 Feb '11

22 Feb '11

On 22 February 2011 14:50, KTC <ktc(a)ktchan.info> wrote: > I thought the download link to boost jam is going to be removed from the > front page from this release on so there's no more "Bjam shows all kind of > errors when I tried to build boost"? I don't know what's happening with that. I asked on the build list a little while ago and got no response. If the separate download is no longer current, then it probably also means that the build and jam documentation on the site are … [View More]

1 0

failed linking boost w/ my code (mac os x snow leo, g++ 4.21)
by ny 22 Feb '11

22 Feb '11

On Tue, Feb 22, 2011 at 3:31 PM, ny <> wrote: > Hi, > > I'm a boost user, but right now I fail testing some code through Netbeans > IDE (and yes I 've posted there as well). > The inclusion w/ the foreach.hpp I need fails -> warning: > boost/foreach.hpp: No such file or directory. > > I 've added #include <boost/foreach.hpp> in my code, > export > PATH=$PATH:/opt/local/var/macports/software/boost/1.45.0_1/opt/local/include > > (installed via … [View More]

1 0

Re: [Boost-users] [boost] Boost release 1.46.0 available
by Beman Dawes 22 Feb '11

22 Feb '11

On Tue, Feb 22, 2011 at 8:33 AM, Sergey Zubkovsky <sergzub(a)gmail.com> wrote: > http://www.boost.org/users/download/version_1_46_0 > > Not Found > > The requested URL /users/download/version_1_46_0.html was not found on this > server. Seems to be working now. Thanks, Daniel --Beman

1 0

Re: [Boost-users] [boost] Boost release 1.46.0 available
by Daniel James 22 Feb '11

22 Feb '11

On 22 February 2011 13:11, Jeff Flinn <TriumphSprint2000(a)hotmail.com> wrote: > FYI - the website 1.46 docs link points to 1.45 docs Sorry about that, it's fixed now.

1 0

[regex] link problem with MSVC
by Thomas Mang 22 Feb '11

22 Feb '11

HI, I had built boost version 1.40 (some time ago) myself with MSVC 2008 Express, a complete build. I now wanted to use the regex library; I left the default option of statically linking it in (no #define BOOST_REGEX_DYN_LINK) and also count on auto-linking (no BOOST_REGEX_NO_LIB). Using regex_search, I keep getting linker errors: Error 1 error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __thiscall std::_Container_base::_Orphan_all(void)const " (__imp_?… [View More]

2 3

[BGL] Determining the properties bundle type
by Shaun Jackman 22 Feb '11

22 Feb '11

Hi, What's the best way to determine the properties bundle type? G::vertex_bundled vertex_bundle_type<G>::type property_map_value<G, vertex_bundle_t> I'm trying to determine the type that will be returned by g[u] where g is a graph and u is a vertex_descriptor. Thanks, Shaun

2 1

Re: [Boost-users] UPDATE rules
by spamjunk 21 Feb '11

21 Feb '11

Sure, why worry about backwards compatibility. When is that ever important? Guess I'll stick with .17.

1 0

Re: [Boost-users] UPDATE rules
by spamjunk 21 Feb '11

21 Feb '11

> I thought that's how Boost.Build always worked. That *may* be how Boost.Build works. I don't know. I don't use it. I only use BJAM. Version 3.1.18 added these lines to jam.c: if (!targets_to_update()) mark_target_for_updating("all"); Thus, if no target is defined on the command line, it force it to "all." These lines do not exist in 3.1.17.

2 1

Re: [Boost-users] Determine at compile time whether type has subtraction semantics?
by Raymond Burkholder 21 Feb '11

21 Feb '11

> On 19/02/11 06:51, Frédéric Bron wrote: > >> Is it possible to determine at compile-time if a type has subtraction > >> semantics? E.g. in struct A<T> I would like to decide at compile-time not > to > >> execute&A::subtract in the register_fns method. Then the subtract > method is > >> not instantiated and there is no error. > Is there any way to do use the type traits to conditionally compile some > code using some brief syntax? I.… [View More]

2 1

Determine at compile time whether type has subtraction semantics?
by John Reid 21 Feb '11

21 Feb '11

Is it possible to determine at compile-time if a type has subtraction semantics? E.g. in struct A<T> I would like to decide at compile-time not to execute &A::subtract in the register_fns method. Then the subtract method is not instantiated and there is no error. template< typename T > struct A { void register_fns() { &A::subtract; } T subtract( T x, T y ) { return x - y; } }; void test() { A< int >().register_fns(); // int: … [View More]

4 9

UPDATE rules
by spamjunk 21 Feb '11

21 Feb '11

Is seems that the UPDATE rule for BJAM was changed for 3.1.18. Now, if no targets are defined on the command line, UPDATE defaults to "all". See line #452 of jam.c. This is annoying. I don't want my default to be all, but there is no way (that I know of) the distinguish between an explicit "all" on the command line, and the new defaulted, implicit one. Anyone know of a workaround (outside of changing the code or using an older version)? Thanks.

2 1

[ICL] lower(interval_set) doesn't compile
by John Reid 21 Feb '11

21 Feb '11

I'm not sure if I'm getting the wrong end of the stick from the docs or perhaps I should raise this sort of thing as a bug report? #include <boost/icl/interval_set.hpp> namespace icl = ::boost::icl; void interval_set_intersects() { icl::lower( icl::interval_set< int >() ); } gives: In file included from /home/john/Dev/ThirdParty/boost/boost-trunk/boost/icl/associative_interval_container.hpp:16, from /home/john/Dev/ThirdParty/boost/boost-trunk/boost/icl/interval_base_set.hpp:… [View More]24, from /home/john/Dev/ThirdParty/boost/boost-trunk/boost/icl/interval_set.hpp:14, from src/sandbox.cpp:2: /home/john/Dev/ThirdParty/boost/boost-trunk/boost/icl/concept/interval_associator.hpp: In function ‘boost::enable_if< boost::icl::is_interval_container<boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> >, boost::icl::interval_set< int, less, boost::icl::discrete_interval<int, less>, allocator>::interval_type >::type boost::icl::lower(const boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> &)’: src/sandbox.cpp:6: instantiated from here /home/john/Dev/ThirdParty/boost/boost-trunk/boost/icl/concept/interval_associator.hpp:229: error: no match for ternary ‘operator?:’ in ‘boost::icl::is_empty( ( (const boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> &)( (const boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> *)object))) ? boost::icl::identity_element< boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> >::value() : boost::icl::lower( ( (const boost::icl::discrete_interval<int, less> &)( ( const boost::icl::discrete_interval<int, less> * )boost::icl::key_value( ( (const boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator> *)object )->boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator>::< anonymous >.boost::icl::interval_base_set< boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less>, allocator>, int, less, boost::icl::discrete_interval<int, less>, allocator>::begin()))))’ using boost SVN version 68955 and gcc 4.4.3 [View Less]

2 3

[boost.signals2] queries
by Sean Farrow 21 Feb '11

21 Feb '11

Hi: I am looking in to using boost.signals2 for a project I'm involved in, but have a few queries: Firstly, if I create a global signall: boost::signals2::signal<void ()> sig; and then a structure: struct DoWork { void operator()() const { //work. } If I then create a private member of a class: DoWork work; And then do: Sig.connect(Work); Will the connection happen on the thread in which the work member variable was defined or will a second thread be utilized? Also given … [View More]

2 2

Timing out when writing to serial port while still receiving data
by Goetz, Russ 21 Feb '11

21 Feb '11

I've created a wrapper class around boost asio's serial_port class: class SerialPort { public: void open(); void send(const std::vector<uint8> &data); void close(); private: void _startReceiving(); boost::asio::serial_port m_serialPort; boost::asio::io_service m_ioService; std::vector<uint8> m_recvBuf; }; The SerialPort class has an 'open' member function that opens the port and begins waiting for data to be received on the serial port. There's also a 'send' member … [View More]function that writes the specified data to the serial port. Below is the code (running on a separate thread) that waits for data to be received on the serial port: Receive Thread -------------- while (m_recvData) { m_serialPort.async_read_some(boost::asio::buffer(m_recvBuf), boost::bind(&SerialPort::_recvHandler, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); m_ioService.run(); m_ioService.reset(); } The problem I'm experiencing is that when the flow control of the serial port is set to RTS/CTS, and I try and write to the serial port with the cable unplugged or the CTS serial line otherwise low, the call is a blocking call. I realize this is the way it's supposed to work, but I need to make writing to the serial port timeout after a few hundred milliseconds instead of blocking until CTS goes high. So I found code on the boost user's mailing list to do just that (m_writeDoneEvent is a manual reset event): Write Thread ------------ boost::optional<boost::system::error_code> timerResult; boost::asio::deadline_timer writeTimer(m_ioService); writeTimer.expires_from_now(milliseconds(100)); writeTimer.async_wait(boost::bind(&SerialPort::_writeDone, this, &timerResult, (std::size_t*)NULLPTR, _1, 0)); boost::optional<boost::system::error_code> writeResult; std::size_t bytesWritten; boost::asio::async_write(m_serialPort, boost::asio::buffer(data, length), boost::bind(&SerialPort::_writeDone, this, &writeResult, &bytesWritten, _1, _2)); // Wait for the write to finish, either due to success or timing out. m_writeDoneEvent.wait(); m_writeDoneEvent.unset(); if (writeResult) { // Write completed successfully. writeTimer.cancel(); if (writeResult->value()) { std::ostringstream oss; oss << "Failed to send some or all of the data to " << m_portName << ". Successfully sent " << bytesWritten << " of a possible " << length << " bytes."; throw SerialException(oss.str(), writeResult->value()); } } else if (timerResult) { // Write timed out. Cancel all asynchronous operations (including the // asynchronous call to read). m_serialPort.cancel(); // <==== ***Throws exception*** std::ostringstream oss; oss << "Sending to " << m_portName << " timed out."; throw SerialException(oss.str()); } void SerialPort::_writeDone(boost::optional<boost::system::error_code> *errorToSet, std::size_t *bytesWrittenToSet, const boost::system::error_code &error, std::size_t bytesWritten) const { if (error != boost::asio::error::operation_aborted) { // Set the error code so the caller knows why the asynchronous write //operation finished. errorToSet->reset(error); if (bytesWrittenToSet != NULLPTR) { *bytesWrittenToSet = bytesWritten; } // Signal to the caller that the write operation is complete. m_writeDoneEvent.set(); } } However, when the write operation on the serial port times out, the call to m_serialPort.cancel() above throws an exception, saying 'The attempted operation is not supported for the type of object referenced'. Looking at the source code, the comment where the exception is thrown says that it's an unsafe operation to call cancel on the IO service from a thread when work has been given to the IO service from a different thread. This obviously fits my case - I've submitted an async_read on the Receive thread and I'm trying to cancel all asynchronous work on the Write thread. Is it possible to have a thread always running that's waiting for data to be received on the serial port as well as have a write thread that timeouts? If so, where did I go wrong above? Thanks, Russ [View Less]

1 0

[boost.asio] issues with io_service.run
by Sean Farrow 21 Feb '11

21 Feb '11

Hi: Ok, I'm trying to use boost::asio::io_service::run as follows. At the top of a .hpp file I have: typedef boost::asio::io_service FolderMonitoringService; I can pass this to a constructor requiring an io_service as follows: boost::asio::dir_monitor dm(FolderMonitoringService); however when I try to do: FolderMonitoringService.run(); I get 2 c2143 errors. 1>d:\work\access for everyone\sibelius access\sibeliusaccessserver\utility.cpp(127): error C2143: syntax error : … [View More]

3 4

[Fusion] Adapting template nested structure
by Kamil Renczewski 20 Feb '11

20 Feb '11

Hello I have a compilation error when using BOOST_FUSION_ADAPT_TPL_STRUCT on nested structure. namespace nsp { template< class T > struct Outer { struct Inner { int mint; }; }; } BOOST_FUSION_ADAPT_TPL_STRUCT( (T), (nsp::Outer::Inner) (T), (int, mint) ) Above code generates compiler errors on g++ 4.4.5. Am I doing something wrong? Or maybe BOOST_FUSION_ADAPT_TPL_STRUCT can't adapt nested structures? If so, … [View More]

2 1

Adding a new file parsing library
by Dhaivat Pandya 20 Feb '11

20 Feb '11

Hello everyone. I've been using boost in my own projects for about 1 year now, and very often I've noticed that Boost does not have much file parsing support (I may be wrong as of now, please correct me). So, I was wondering if the community would be interested in a creation of a new library that uses the Boost::Filesystem set for cross platform file reading, and parses files for CSV, XML, HTML, etc. and tidies up the above if needed (much like the BeautifulSoup module for Python). Please … [View More]

2 1

Re: [Boost-users] Boost::Asio on ARMV5TE
by Peter Meyer 20 Feb '11

20 Feb '11

Hi, after some debugging and testing i track down the problem to epoll. I don't known if it is a wrong usage by boost::asio or a bug inside the kernel. I've changed epoll_reactor.ipp with some debugging output and a memset. 226 void epoll_reactor::run(bool block, op_queue& ops) ... 239 epoll_event events[128]; 240+ ::memset(events, 0XEE, sizeof(events)); 241 int num_events = epoll_wait(epoll_fd_, events, 128, timeout); In case there are more events then one reported by … [View More]epoll_wait, only the first epoll_event structure is filled with information. All following structures includes garbage or 0xEE set by memset befor calling epoll_wait. Debug output: Count events: 2 ---------------------------------------- EPOLL[0].data.ptr = 0x1ce8b0 EPOLL[1].data.ptr = 0xeeeeeeee So a workaround is to set maxevents to one. Like this: 226 void epoll_reactor::run(bool block, op_queue& ops) ... 240 int num_events = epoll_wait(epoll_fd_, events, 1, timeout); Is there a known bug about epoll on ARM? Or had boost::asio a bug? With best regards Peter > -----Original Message----- > From: Peter Meyer [mailto:r...@xmail.net] > Sent: Friday, February 11, 2011 7:57 AM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Boost::Asio on ARMV5TE > > > Hi, > > i've wrote a litte proxy using boost::asio (boost 1.45). Program runs > well on Intel (Linux kernel 2.6.35.10 and gcc 4.5.1). > Same code cross compiled for ARMV5TE (Linux 2.6.24.4 and GCC 4.1.2 or > GCC 3.4.3) crashes always at the same point. > Stacktrace looks like this > > Program terminated with signal 11, Segmentation fault. > #0 0x400e3e20 in ?? () > (gdb) backtrace > #0 0x400e3e20 in ?? () > #1 0x0001cfb0 in boost::asio::detail::posix_mutex::lock (this=0x7d) at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /detail/posix_mutex.hpp:52 > #2 0x0001cfe6 in scoped_lock (this=0xbe8a98d0, m=@0x7d) at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /detail/scoped_lock.hpp:36 > #3 0x00069bf4 in boost::asio::detail::epoll_reactor::run > (this=0x191538, block=true, ops=@0xbe8a994c) > at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /detail/impl/epoll_reactor.ipp:275 > #4 0x0006a06c in boost::asio::detail::task_io_service::do_one > (this=0x1914e0, lock=@0xbe8a99d4, this_idle_thread=0xbe8a9990) > at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /detail/impl/task_io_service.ipp:264 > #5 0x0006a33c in boost::asio::detail::task_io_service::run > (this=0x1914e0, ec=@0xbe8a9a0c) > at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /detail/impl/task_io_service.ipp:130 > #6 0x0006a426 in boost::asio::io_service::run (this=0xbe8a9bc4) at > /usr/armv5tel-redhat-linux-gnueabi/sys-root/usr/local/include/boost/asio > /impl/io_service.ipp:57 > #7 0x00073504 in proxy::Server::run (this=0xbe8a9bb4) at server.cpp:71 > #8 0x0004e2a4 in main (argc=3, argv=0xbe8a9da4) at proxy.cpp:111 > > It looks like the internal epoll_events data structure > (descriptior_state) is corrupted. > > Any advice is welcome. > > With best regards > Peter > ------------------------------------------------------------------------------------ [View Less]

1 0

[boost.asio] passing a boost::asio::io_service in to a constructure
by Sean Farrow 19 Feb '11

19 Feb '11

Hi: I'm new to working with asio, and have the following currently as two global variables: boost::asio::io_service FolderMonitoringService; boost::asio::dir_monitor dm(FolderMonitoringService); This works fine, but what I'd like to do is to make both variables private. When I do that, I get an error c2061 syntax error on the second line, in visual studio 2010. How can I pass a non-copyable class in to a constructor? Cheers Sean.

3 2

BGL: half-edge-diagram or doubly-connected-edge-list
by Anders Wallin 19 Feb '11

19 Feb '11

Hi group, I want to work with meshes that contain vertices, edges, and faces(1)(2). I've subclassed adjacency_list and added a std::vector to contain the face-data: http://pastebin.com/h4jxpDkt Is there a better solution? (somewhere in the BGL docs it says sublcassing BGL-graphs can be dangerous?) How do I provide a graph_traits::face_descriptor for my sublcass? (now I am using "unsigned int" for face descriptors) How do I allow choice between a vector and a list for storing the vertices? I … [View More]

2 1

Subject: Formal Review of Proposed Boost.Process library starts tomorrow
by Marshall Clow 19 Feb '11

19 Feb '11

It's my pleasure to announce that the review of Boris Schäling's Process library starts tomorrow, February 7th and lasts until February 20, 2011, unless an extension occurs. What is it? =========== Boost.Process is a library to manage system processes. It can be used to: • create child processes • run shell commands • setup environment variables for child processes • setup standard streams for child processes (and other streams on POSIX platforms) • communicate with child processes … [View More]

11 32

[proto] Expressive C++ articles for offline reading
by Ravi 19 Feb '11

19 Feb '11

Hi, Is there a way to get the cpp-next articles on proto in a form readable offline? The best times for me to read them tend to be on buses and trains where I do not have access to the internet. There is too much (AJAX?) magic in the HTML sources for my poor browser to render the sources offline. Regards, Ravi

2 1

[thread] Double Buffer Example
by Christian Henning 18 Feb '11

18 Feb '11

Hi there, I have some example code for boost::thread that illustrates a common multi-threaded design pattern. It's called Double Buffering which, I believe, is commonly used when a consumer is likely to be much slower processing items than a producer producing them. In this case a message queue is not really needed since a two element queue is as good as n element queue. Just imagine the case when a saving_to_database thread operates at 10MBit per second while a producer thread generates … [View More]

1 0

[ICL] intersects(interval_set< int >, int) doesn't compile
by John Reid 18 Feb '11

18 Feb '11

AFAICT from the docs the following should compile: #include <boost/icl/interval_set.hpp> namespace icl = ::boost::icl; void interval_set_intersects() { icl::intersects( icl::interval_set< int >(), 1 ); } but I get a no match error: gcc.compile.c++ bin/gcc-4.4.3/debug/src/sandbox.o src/sandbox.cpp: In function ‘void interval_set_intersects()’: src/sandbox.cpp:7: error: No match for ‘intersects(boost::icl::interval_set<int, less, boost::icl::discrete_interval<int, less… [View More]

3 3

installataion boost
by Faruk Kuşcan 18 Feb '11

18 Feb '11

hello, i need a quick answer. I downloaded boost_1_45_0.zip to my linux. I want to compile and build all the library. what should I do? can you explain step by step? thanks faruk

5 8

Boost Asio and CYGWIN
by Jacques, Eduardo 18 Feb '11

18 Feb '11

Hi all, I am trying to build a simple application that uses boost::asio on netbeans using CYGWIN. But the compiler is giving me some link errors: Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs Configured with: /managed/gcc-build/final-v3-bootstrap/gcc-3.4.4-999/configure --verbose --program-suffix=-3 --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-languages=c,ada,c++,… [View More]d,f77,pascal,java,objc --enable-nls --without-included-gettext --enable-version-specific-runtime-libs --without-x --enable-libgcj --disable-java-awt --with-system-zlib --enable-interpreter --disable-libgcj-debug --enable-threads=posix --enable-java-gc=boehm --disable-win32-registry --enable-sjlj-exceptions --enable-hash-synchronization --enable-libstdcxx-debug Thread model: posix gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) /usr/lib/gcc/i686-pc-cygwin/3.4.4/cc1plus.exe -quiet -v -I../../../cygwin/usr/include/Common -I../../../cygwin/usr/include/Communication -MMD build/Debug/Cygwin-Windows/main.d -MF build/Debug/Cygwin-Windows/main.o.d -MP -MQ build/Debug/Cygwin-Windows/main.o -D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -idirafter /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api -idirafter /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/lib/../../include/w32api -D __USE_W32_SOCKETS -D _WIN32_WINNT=0x0501 main.cpp -quiet -dumpbase main.cpp -mtune=pentiumpro -auxbase-strip build/Debug/Cygwin-Windows/main.o -g -version -o /cygdrive/c/DOCUME~1/jacqueed/LOCALS~1/Temp/cccKQ1O6.s ignoring nonexistent directory "/usr/local/include" ignoring nonexistent directory "/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/include" ignoring duplicate directory "/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/lib/../../include/w32api" #include "..." search starts here: #include <...> search starts here: ../../../cygwin/usr/include/Common ../../../cygwin/usr/include/Communication /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++ /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/i686-pc-cygwin /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/backward /usr/lib/gcc/i686-pc-cygwin/3.4.4/include /usr/include /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api End of search list. GNU C++ version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) (i686-pc-cygwin) compiled by GNU C version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125). GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/as.exe -o build/Debug/Cygwin-Windows/main.o /cygdrive/c/DOCUME~1/jacqueed/LOCALS~1/Temp/cccKQ1O6.s mkdir -p dist/Debug/Cygwin-Windows g++.exe -D __USE_W32_SOCKETS -D _WIN32_WINNT=0x0501 -v -o dist/Debug/Cygwin-Windows/quickfasttest build/Debug/Cygwin-Windows/main.o -L../../../cygwin/usr/lib -L../../Downloads/quickfast_win_src_1_2/Output/Release -lboost_thread-mt -lboost_filesystem-mt -lboost_serialization-mt -lboost_regex-mt -lboost_system-mt -lboost_filesystem-mt -lwsock32 -lwinmm -lws2_32 -lQuickFAST Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs Configured with: /managed/gcc-build/final-v3-bootstrap/gcc-3.4.4-999/configure --verbose --program-suffix=-3 --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-languages=c,ada,c++,d,f77,pascal,java,objc --enable-nls --without-included-gettext --enable-version-specific-runtime-libs --without-x --enable-libgcj --disable-java-awt --with-system-zlib --enable-interpreter --disable-libgcj-debug --enable-threads=posix --enable-java-gc=boehm --disable-win32-registry --enable-sjlj-exceptions --enable-hash-synchronization --enable-libstdcxx-debug Thread model: posix gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) /usr/lib/gcc/i686-pc-cygwin/3.4.4/collect2.exe -Bdynamic --dll-search-prefix=cyg -o dist/Debug/Cygwin-Windows/quickfasttest.exe /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../crt0.o -L../../../cygwin/usr/lib -L../../Downloads/quickfast_win_src_1_2/Output/Release -L/usr/lib/gcc/i686-pc-cygwin/3.4.4 -L/usr/lib/gcc/i686-pc-cygwin/3.4.4 -L/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../.. build/Debug/Cygwin-Windows/main.o -lboost_thread-mt -lboost_filesystem-mt -lboost_serialization-mt -lboost_regex-mt -lboost_system-mt -lboost_filesystem-mt -lwsock32 -lwinmm -lws2_32 -lQuickFAST -lstdc++ -lgcc -lcygwin -luser32 -lkernel32 -ladvapi32 -lshell32 -lgcc build/Debug/Cygwin-Windows/main.o: In function `_ZStorSt13_Ios_FmtflagsS_': /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiverD2Ev[QuickFAST::Communication::AsynchReceiver::~AsynchReceiver()]+0x4a): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioServiceD1Ev' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiverC2ERN5boost4asio10io_serviceE[QuickFAST::Communication::AsynchReceiver::AsynchReceiver(boost::asio::io_service&)]+0x63): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioServiceC1ERN5boost4asio10io_serviceE' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiver4stopEv[QuickFAST::Communication::AsynchReceiver::stop()]+0x1d): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioService11stopServiceEv' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiverD0Ev[QuickFAST::Communication::AsynchReceiver::~AsynchReceiver()]+0x4a): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioServiceD1Ev' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiverD1Ev[QuickFAST::Communication::AsynchReceiver::~AsynchReceiver()]+0x4a): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioServiceD1Ev' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiver11joinThreadsEv[QuickFAST::Communication::AsynchReceiver::joinThreads()]+0x12): undefined reference to `__imp___ZN9QuickFAST13Communication11AsioService11joinThreadsEv' /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/ios_base.h:(.text$_ZN9QuickFAST13Communication14AsynchReceiver10runThreadsEjb[QuickFAST::Communication::AsynchReceiver::runThreads(unsigned Does anyone have an idea about what is going on? Eduardo Jacques BTG Pactual - IT Front Office BM&F Praia de Botafogo, 501/5º andar, Botafogo 22250-040 Rio de Janeiro, RJ, Brasil Telefone +55-21 3262 9617 Fax +55-21 3262 8600 eduardo.jacques(a)btgpactual.com www.btgpactual.com ********************************************************************** Visit our website at http://www.btgpactual.com The content of this message is confidential and was intended solely to its recipient. In case this message is received by mistake, please destroy it and notify the sender immediately. Electronic mails are not a safe channel for data transmission and the sender accepts NO liability for eventual errors, delays, loss, interception or virus infection. When necessary, the receiver must request a hard-copy version. O conteúdo desta mensagem é confidencial e destinado exclusivamente aos destinatários. Caso a receba por engano, favor destruí-la e notificar o remetente de imediato. O correio eletrônico não configura meio seguro para transmissão de dados e o remetente NÃO se responsabiliza por eventual erro, atraso, extravio, interceptação ou infecção por vírus. Cabe ao destinatário solicitar versão física sempre que necessário. ********************************************************************** [View Less]

1 0

[boost::pool] Re: Offering a possible replacement for boost::pool
by Lang Stefan 18 Feb '11

18 Feb '11

Thanks Joel, I would gladly chime in and share my insights. Where should I go to contribute? Stefan ------------------------------ Message: 3 Date: Thu, 17 Feb 2011 19:17:08 +0100 From: Joel Falcou <joel.falcou(a)lri.fr> To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Offering a possible replacement for boost::Pool Message-ID: <4D5D6624.7030202(a)lri.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed THere is currently an effort aroudn boost.pool to … [View More]

2 1

Building 64-bit with Visual Studio 2010
by Greg Hickman 18 Feb '11

18 Feb '11

I can start a 32-bit VS command line and build boost_1_45_0, but the 64-bit command line build fails and I can't tell why. I'm running VS 2010 Ultimate on Windows 7 Professional, and here's the boost-build invocation I'm using: \.bjam -j 4 *^* More? *--build-dir=*"c:\temp" *^* More? *--build-type=complete* *msvc-10.0* architecture=x86 address-model=64 stage64 ...but I can't tell what is going wrong looking at the output. Can anyone suggest how to ascertain the problem? Perhaps a particular … [View More]

3 3

detecting the compiling platform
by Sean Farrow 18 Feb '11

18 Feb '11

Hi: I'm currently involved in a project which needs to detect the platform (windows/mac currently) on which is it being compiled. Does boost.Configuration have anything to allow this to be done? Cheers Sean.

1 0

[boost.filesystem] notifications when a directory contents changes
by Sean Farrow 18 Feb '11

18 Feb '11

Hi: I know on windows there is a way to determine when the contents of a directory changes and for what reason the change has occurred, file created/deleted etc. Is there an equivalent in the boost.filesystem library? Cheers Sean.

2 2

[units] extend system: temperature unit for cgs system
by alfC 18 Feb '11

18 Feb '11

Hi, in a recent project I am working in cgs units because the people involved is used to that system. I was surprised to find that the cgs unit system defined in boost.units doesn't have a temperature unit. Therefore this program compiles and gives a strange result: #include<boost/units/systems/cgs/io.hpp> #include<boost/units/physical_dimensions/temperature.hpp> #include<iostream> using namespace boost::units; int main(){ std::clog << quantity<unit<… [View More]

1 0

[GIL] gray pixel iterator in generic algorithm
by Curtis Gehman 17 Feb '11

17 Feb '11

I'm trying to use GIL pixel iterators in a generic STL-style algorithm. I'm primarily using GIL for the generic 2D iterators. And in my context, I'm only interested in grayscale images. The value_type associated with GIL iterators is a pixel type, which typically is an object representing multiple channels (e.g., colors). It makes sense that comparison operators (e.g., <) are not defined for general color pixel types. For grayscale images, however, it makes sense that common arithmetic … [View More]

3 7

[boost-users][graph] There is graph::null_vertex, but no "null_edge"!
by al.zatv 17 Feb '11

17 Feb '11

Hello! There is graph::null_vertex, but no "null_edge". Atl east, I don't find it. How can I return such a "special" edge descriptor, to mark,for example, that edge is not found or something like that?

2 5

[website] 1.45 docs link to version 1.29 on sourceforge
by John Reid 17 Feb '11

17 Feb '11

At http://www.boost.org/doc/libs/1_45_0/libs/libraries.htm the link "Documentation for some Boost libraries is available in other forms, including DocBook, XSL Formatting Objects, and Unix man pages. This documentation is available on Sourceforge." points to https://sourceforge.net/project/showfiles.php?group_id=7586&package_id=1597… which is for version 1.29.

2 1

[date_time] Memory leak in io example?
by Jim Bell 17 Feb '11

17 Feb '11

In the example code under Date Time Input/Output <http://www.boost.org/doc/libs/1_45_0/doc/html/date_time/date_time_io.html>, "A simple example of this new system:", it shows a date_facet being constructed with new, then a locale constructed with it, and finally ios::imbue called on that. >From what I can tell from locale's constructors <http://stdcxx.apache.org/doc/stdlibref/locale.html#idx811> and imbue, neither will own/release that pointer. True?

2 2

Offering a possible replacement for boost::Pool
by Lang Stefan 17 Feb '11

17 Feb '11

To whom it may concern... Two years ago I was looking for an implementation of a pool allocator, and found boost::pool. Unfortunately, the implementation was incomplete and hadn't been maintained for years, so I decided to write my own library, based on some of the ideas I found in the documentation for boost::pool. Now that I have a working library, I wondered if I should offer my results back to the community, but I am unsure how to go about that. What I currently have is an implementation … [View More]

2 1

enable_shared_from_this2
by Peter Soetens 17 Feb '11

17 Feb '11

Hi list, I was in the need for a shared_from_this() in my constructor, so I chose this implementation for my class. Apart from the header being there and one mailing list thread, there's nothing that points to the existence of this header. Since we want to keep compatibility with Boost 1.38, I tried to backport the enable_shared_from_this2 class to that version. I was wondering why the weak_ptr::_empty() method was added to the weak_ptr API and why weak_ptr::expired() was not used … [View More]

1 0

[range] Using container find
by Robert Jones 17 Feb '11

17 Feb '11

The boost range library provides a smart version of begin/end that resolves to different things depending on whether its argument is a pair or something with its own begin/end method. Does a similar thing exist anywhere for find? Ie., if a find exists, eg,. for maps, then use it, otherwise fall back to std::find()? Thx - Rob.

1 0

[Proto] Nested Types in Transforms
by Hossein Haeri 17 Feb '11

17 Feb '11

Dear all, In my namespace arity_caller, I have a struct CanBeCalled<> such that CanBeCalled<T, mpl::int_<n> >::type is an mpl::bool_<> representing whether T can be called with n doubles. I also have the following grammar (in a file called 'EmtnGram.hpp') in which I am trying to employ this CanBeCalled<>::type: struct EmtnShiftFObjGram: boost::proto::and_ < boost::proto::shift_right < EmtnTermOrGram, boost::proto::terminal<boost::… [View More]

2 3

[thread] equivalent of WaitForSingleObject
by Sean Farrow 16 Feb '11

16 Feb '11

Hi: I've got some boost code that calls wait for single object on windows. I'd like to transition this to use boost.thread. What is the best way of doing this, in the while loop I'm doing: while( WaitForSingleObject( hDir, WAIT_TIMEOUT ) != WAIT_OBJECT_0 ) Any help appreciated. Cheers Sean.

2 1

[serialization] Undefined symbol
by John Reid 16 Feb '11

16 Feb '11

Hi, I'm trying to work on some code I haven't looked at in some time and in debug builds (with gcc 4.4.3) I keep getting an undefined symbol: boost::serialization::version<boost::multi_index::detail::serialization_version<bio::BindingHit<bio::BindingModel> > >::value I can't work out where this is getting referenced and why the compiler is not instantiating it there? Can anyone point me in the right direction? I'm using boost SVN revision 64053. Thanks, John.

2 5

kd-tree
by Kraus Philipp 16 Feb '11

16 Feb '11

Hello, is there a kd-tree implementation with the ublas structures within the boost? I have some vectors and need a kd-tree to organize them. Thanks Phil

1 0

Re: [Boost-users] Building boost on Visual Studio
by John Drescher 15 Feb '11

15 Feb '11

On Tue, Feb 15, 2011 at 4:22 PM, Tyler Weston <tyler.weston(a)gmail.com> wrote: > --toolset=msvc-9.0 > Excellent. That is working. Thanks John

1 0

Building boost on Visual Studio
by John Drescher 15 Feb '11

15 Feb '11

I opened a 32 bit Visual Studio 2008 command prompt to the location of the boost-1.45.0 source then ran the bootstrap batch file to create bjam. After this I executed the following command to build boost. bjam --build-dir="X:\32Bit\VC.90\Libraries\boost-1.45.0" toolset=msvc --build-type=complete stage it appears that boost built successfully however it named them vc100 instead of vc90. I do not have Visual Studio 2010 installed on my machine. I never had it installed. Anyways to use these in … [View More]

1 0

shared_ptr failure with undefined type (msvc)
by Gennadiy Rozental 15 Feb '11

15 Feb '11

Hi, I came to expect shared_ptr to handle undefined type, but here I got a test case (simplified from my use case) where it's actually breaks under msvc and works under gcc: #include "boost/shared_ptr.hpp" class UndefinedType; //// base class for template class FooBase{ public: virtual ~FooBase(); virtual void fff(); }; template <typename T> class Foo: public FooBase { public: virtual void fff() { // any virtual implementations seen are [have to be … [View More]

2 1

[Proto] Compiles under 1.42 but not under 1.44
by Hossein Haeri 15 Feb '11

15 Feb '11

Dear all, I have a piece of code that compiles under the Proto of Boost 1.42 but doesn't compile under that of Boost 1.44! The error messages that I get under 1.44 can be found in the PS. Any idea there? TIA,--Hossein P.S. Compiling: main.cpp main.cpp: In function 'int main()': main.cpp:73:3: error: no match for 'operator>>' in 'EW1<InpPool, GameState, KillMsg>() >> plus1' main.cpp:73:3: error: template argument 1 is invalid main.cpp:73:3: error: invalid type in declaration … [View More]

2 1

question about converting boostbook into quickbook
by Faruk Kuşcan 15 Feb '11

15 Feb '11

Hello, I have a boostbook xml document named abcde.boostbook. Now I want this document in qbk format. What command should I use to do that? abcde.boostbook > abcde.qbk ??? Thanks for your help. Faruk

2 1

Most recent version of Boost supporting MSVC6
by Kerry, Richard 14 Feb '11

14 Feb '11

Can someone tell me which is the most recent version of Boost to support Microsoft Visual C++ 6 ? In particular the Regular Expression module - Regex. I have read a discussion (in Boost Archives on groups.google.com) from September last year which indicates that current (1.45) Boost doesn't support VC6, but no-one there states when the support ceased. The Boost web-site doesn't make this clear either, and nor does BoostPro's download page. Regards, Richard. Richard Kerry BNCS Engineer … [View More]

7 12

[intrusive] unordered_set::iterator_to
by Paul Rose 14 Feb '11

14 Feb '11

Hi, I'm getting compile errors trying to use iterator_to() on an unordered_set when given a const reference (and returning a const_iterator). It works fine for me with ordered set. I am able to reproduce this error by adding the following two lines: MyClass const &cr = values[0]; base_set.iterator_to(cr); to the bottom of the Example code (just before the return 0 from main) for unordered_set at: http://www.boost.org/doc/libs/1_45_0/doc/html/intrusive/unordered_set_unord… The … [View More]error is: /opt/boost/include/boost-1_38/boost/intrusive/hashtable.hpp: In member function ‘boost::intrusive::detail::hashtable_iterator<boost::intrusive::hashtable_impl<Config>, true> boost::intrusive::hashtable_impl<Config>::iterator_to(typename std::iterator_traits<typename boost::intrusive::detail::eval_if_c<boost::intrusive::hashtable_impl<Config>::external_value_traits, boost::intrusive::detail::eval_value_traits<typename Config::value_traits>, boost::intrusive::detail::identity<typename Config::value_traits> >::type::const_pointer>::reference) const [with Config = boost::intrusive::detail::usetopt<boost::intrusive::detail::base_hook_traits<MyClass, boost::intrusive::slist_node_traits<void*>, safe_link, boost::intrusive::default_tag, 4>, boost::hash<MyClass>, std::equal_to<MyClass>, long unsigned int, boost::intrusive::detail::bucket_traits_impl<boost::intrusive::detail::get_slist_impl<boost::intrusive::slist_node_traits<void*> >::type>, 3ul>]’: /opt/boost/include/boost-1_38/boost/intrusive/unordered_set.hpp:733: instantiated from ‘typename boost::intrusive::hashtable_impl<Config>::const_iterator boost::intrusive::unordered_set_impl<Config>::iterator_to(typename boost::intrusive::hashtable_impl<Config>::const_reference) const [with Config = boost::intrusive::detail::usetopt<boost::intrusive::detail::base_hook_traits<MyClass, boost::intrusive::slist_node_traits<void*>, safe_link, boost::intrusive::default_tag, 4>, boost::hash<MyClass>, std::equal_to<MyClass>, long unsigned int, boost::intrusive::detail::bucket_traits_impl<boost::intrusive::detail::get_slist_impl<boost::intrusive::slist_node_traits<void*> >::type>, 3ul>]’ example.cpp:82: instantiated from here /opt/boost/include/boost-1_38/boost/intrusive/hashtable.hpp:1682: error: no matching function for call to ‘boost::intrusive::detail::hashtable_iterator<boost::intrusive::hashtable_impl<boost::intrusive::detail::usetopt<boost::intrusive::detail::base_hook_traits<MyClass, boost::intrusive::slist_node_traits<void*>, safe_link, boost::intrusive::default_tag, 4>, boost::hash<MyClass>, std::equal_to<MyClass>, long unsigned int, boost::intrusive::detail::bucket_traits_impl<boost::intrusive::detail::get_slist_impl<boost::intrusive::slist_node_traits<void*> >::type>, 3ul> >, true>::hashtable_iterator(boost::intrusive::slist_iterator<boost::intrusive::slist_impl<boost::intrusive::slistopt<boost::intrusive::trivial_value_traits<boost::intrusive::slist_node_traits<void*>, normal_link>, long unsigned int, false, false, false> >, true>, const boost::intrusive::hashtable_impl<boost::intrusive::detail::usetopt<boost::intrusive::detail::base_hook_traits<MyClass, boost::intrusive::slist_node_traits<void*>, safe_link, boost::intrusive::default_tag, 4>, boost::hash<MyClass>, std::equal_to<MyClass>, long unsigned int, boost::intrusive::detail::bucket_traits_impl<boost::intrusive::detail::get_slist_impl<boost::intrusive::slist_node_traits<void*> >::type>, 3ul> >* const)’ I am using 1_38_0. I have not yet tried 1_45_0, but I have gone through the entire list of fixed bugs on the release notes between 1_38 and 1_45. I'll try 1_45_0 in the next few days, just in case. I am able to work around my issue by casting away const on my reference before calling iterator_to and assigning the result back into a const_iterator, so for me it is nothing more than an annoyance, but I thought I'd bring it to your attention so it can be fixed in a future release. Thanks, Paul Rose [View Less]

2 4

[signals2] Removal of 'unused variable' warnings
by sguazt 14 Feb '11

14 Feb '11

Dear Signals2 developers, I get an unused variable warning from my compiler (g++ 4.5.1, with flags "-Wall -Wextra -ansi -pedantic") at lines 510 and 515 of file "boost/signals2/detail/signal_template.hpp". The warning is issued for the parameter "is_group" which is not used any more. Please, could you fix it? Possible solutions: a) Add a comment around the parameter name: void do_disconnect(const group_type &group, mpl::bool_<true> /*is_group*/) ... … [View More]

1 0

Visual Studio 2010 Building Error
by Abdullah García 14 Feb '11

14 Feb '11

Hi, I have been working previously with Visual Studio 2008 and I haven't had any problem with my actual code. I needed to migrate my whole solution to Visual Studio 2010 and now I get the following error: - error C2664: 'boost::shared_ptr<T>::shared_ptr(boost::shared_ptr<T> &&)' : cannot convert parameter 1 from 'std::tr1::shared_ptr<_Ty>' to 'boost::shared_ptr<T> &&' Do you have any clue or advice on how to solve it? Greetings! -- Abdullah García

5 8