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

Compile errors under VS 2012 using Boost 1.44
by Boucher, Michael D 12 Oct '12

12 Oct '12

Hi folks, I'm upgrading a old project, first created using Visual Studio 2008, to Visual Studio 2012. This project uses the boost libraries to implement regular expressions, and a few other things. When I try to compile, I get somewhere north of 2000 errors, all stemming from iterator_adaptor.hpp. Here's a sample... ---------------------- error C2039: 'reference' : is not a member of '`global namespace'' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 311 error C2065: 'add_reference' : undeclared identifier boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 215 error C2275: 'Value' : illegal use of this type as an expression boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 215 error C2974: 'boost::mpl::eval_if' : invalid template argument for 'F2', type expected boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 215 error C3203: 'eval_if' : unspecialized class template can't be used as a template argument for template parameter 'DefaultNullaryFn', expected a real type boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 216 error C2955: 'boost::mpl::eval_if' : use of class template requires template argument list boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 216 error C3203: 'ia_dflt_help' : unspecialized class template can't be used as a template argument for template parameter 'Reference', expected a real type boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 217 error C2955: 'boost::detail::ia_dflt_help' : use of class template requires template argument list boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 217 error C2039: 'type' : is not a member of 'boost::iterator_facade<Derived,Value,CategoryOrTraversal,Reference>' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 217 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 219 error C2838: 'type' : illegal qualified name in member declaration boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 222 error C2143: syntax error : missing ';' before '>' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 222 error C2226: syntax error : unexpected type 'boost::detail::ia_dflt_help<Difference,boost::iterator_difference<I2>>::type' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 222 error C2238: unexpected token(s) preceding ';' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 223 error C2516: 'boost::detail::iterator_adaptor_base<Derived,Base,Value,Traversal,Reference,Difference>::type' : is not a legal base class boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 271 error C2825: 'boost::iterator_adaptor<Derived,Base,Value,Traversal,Reference>::super_t': must be a class or namespace when followed by '::' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 311 error C2146: syntax error : missing ';' before identifier 'dereference' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 311 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 312 warning C4183: 'dereference': missing return type; assumed to be a member function returning 'int' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 312 error C2825: 'boost::iterator_adaptor<Derived,Base,Value,Traversal,Reference>::super_t': must be a class or namespace when followed by '::' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 327 error C2039: 'iterator_category' : is not a member of '`global namespace'' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 327 error C2146: syntax error : missing ',' before identifier 'iterator_category' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C2146: syntax error : missing ';' before identifier 'my_traversal' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C2838: 'type' : illegal qualified name in member declaration boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C2955: 'boost::iterator_category' : use of class template requires template argument list boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C2955: 'boost::iterator_category_to_traversal' : use of class template requires template argument list boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C3254: 'boost::iterator_adaptor<Derived,Base,Value,Traversal,Reference>' : class contains explicit override 'type' but does not derive from an interface that contains the function declaration boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 328 error C2825: 'boost::iterator_adaptor<Derived,Base,Value,Traversal,Reference>::super_t': must be a class or namespace when followed by '::' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 333 error C2039: 'difference_type' : is not a member of '`global namespace'' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 333 error C2146: syntax error : missing ',' before identifier 'n' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 333 error C2825: 'boost::iterator_adaptor<Derived,Base,Value,Traversal,Reference>::super_t': must be a class or namespace when followed by '::' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C2039: 'difference_type' : is not a member of '`global namespace'' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C2146: syntax error : missing ';' before identifier 'distance_to' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C2238: unexpected token(s) preceding ';' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C2143: syntax error : missing ';' before '<end Parse>' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 warning C4183: 'distance_to': missing return type; assumed to be a member function returning 'int' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 350 error C2334: unexpected token(s) preceding ':'; skipping apparent function body boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 363 error C2760: syntax error : expected '{' not ';' boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 364 error C1075: end of file found before the left brace '{' at 'pstsdk\0.3.0\include\pstsdk\ndb\node.h(39)' was matched boost\1.44.0\include\boost\iterator\iterator_adaptor.hpp 365 ---------------- The project builds without any errors under VS 2008. Is 1.44 too old to use in VX 2012? I know that Microsoft has changed some of the underlying libraries, so do I need 1.51? Thanx for any help! Mike ---- Michael D Boucher Connected development Autonomy, an HP Company Tel: 508-808-7590 E-mail: michael-d.boucher(a)hp.com<mailto:michael-d.boucher@hp.com> Visit www.autonomy.com<http://www.autonomy.com/>

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[Pool] Use singleton_pool in struct
by Claude 12 Oct '12

12 Oct '12

Hi! I have a problem with singleton_pool when I use it into a struct. I think that this problem is my bad knowledge of C++ and not a problem of boost pool. #include <iostream> #include <boost/pool/pool_alloc.hpp> using namespace std; struct data { int a,b; char name[50]; }; struct MyOrderTag {}; typedef boost::singleton_pool<MyOrderTag,sizeof(data)> poolMemory; struct myStruct { struct MyOrderTag {}; typedef boost::singleton_pool<MyOrderTag,sizeof(data)> poolMemory; }; int main() { data *d = (data*)poolMemory::malloc(); //This is ok myStruct ms; // data *d1 = (data*)ms.poolMemory::malloc(); //Error! d->a = 2; poolMemory::release_memory(); return 0; } I obtain a compiler error on row: data *d1 = (data*)ms.poolMemory::malloc(); The poolMemory in struct is only a typedef and not a struct field. How can I use a singleton_pool into a struct? -- View this message in context: http://boost.2283326.n4.nabble.com/Pool-Use-singleton-pool-in-struct-tp4636… Sent from the Boost - Users mailing list archive at Nabble.com.

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[coroutine] new versions
by Oliver Kowalke 12 Oct '12

12 Oct '12

I've uploaded two re-factored versions - I think most of the suggestions from the review are implemented (namespace is not corrected and documentation not updated yet). 1.) http://ok73.ok.funpic.de/boost-coroutine-self.zip 2.) http://ok73.ok.funpic.de/boost-coroutine-coro.zip Version 1) requires that coroutine-fn has only one argument == coroutine<>::self_t. Other arguments are accessed via coroutine<>::self_t::get< int >() and results via coroutine<>::get(). interface provides input/output iterators. typedef coroutine< int( int, int> > coro_t; int fn( coro_t::self_t & c) { int x = c.get< 0 >(); int y = c.get< 1 >(); c.yield( x +y); ... } coro_t coro( fn); int res = c( 3, 7).get(); Version 2) requires that coroutine-fn has only one argument too == coroutine<> with inverted signature. Other arguments are access via coroutine<>::get(). interface provides input/output iterators. typedef coroutine< int( int, int> > coro_t; int fn( coroutine< tuple< int, int >( int) & c) { int x = c.get().get< 0 >(); int y = c.get().get< 1 >(); c( x +y); ... } coro_t coro( fn); int res = c( 3, 7).get(); Both implementations are not optimized - I think we should get a small and clean interface first. Comments? regards, Oliver

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[interprocess] error sending message
by Ian Esten 12 Oct '12

12 Oct '12

Hi all, I've got a problem using boost::interprocess::memory_queue on Windows - when trying to call send(), I get a null pointer returned by free_msg. This is because there is an offset_ptr with an offset of 1 at the requested location, causing null to be returned. An exception is then thrown with the message "boost::interprocess::message_queue corrupted". Here is a brief summary of my two applications: Application 1: - a Windows service - creates two message queues, messagesToApplication and messagesToService - creates a thread that waits for messages in messagesToService Application 2: - a Windows application - opens the two message queues, with open_only. - tries to send a message to Application 1, the Windows service after it opens the message queues. Everything works right up until application 2 tries to send a message via messagesToService. I haven't yet been able to identify why the offset_ptr has an offset of 1. If anybody has any suggestions as to what I might be doing wrong, I'd very much appreciate it! Thanks, Ian

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BOOST_FOREACH prevent 100% code coverage.
by Marcin Zawadzki 12 Oct '12

12 Oct '12

Hi, I'm using BOOST_FOREACH in my code. And because it's macro so the whole code behind the macro is inserted in place where it's used. So finally when generating code coverage using gcc/gcov for my file it says that I have not covered branches in line with BOOST_FOREACH. And the question is - is it possible to somehow exclude BOOST_FOREACH form coverage results? Thanks, Marcin

2 1

Get patch to boost/property_tree/detail/json_parser_write.hpp included in release?
by Shane Turner 11 Oct '12

11 Oct '12

Is there any chance that patch to boost/property_tree/detail/json_parser_write.hpp provided in https://svn.boost.org/trac/boost/ticket/5598 could be included in the latest release? It would save me from having to manage the patch in our development environment. Thanks, Shane Turner -- Shane Turner Senior Software Developer phone +1 (902) 406--8375 x1008 email Shane.Turner(a)NewPace.ca <mailto:Shane.Turner@newpace.ca> aim <aim:GoIm?screenname=Shane.Turner@newpace.ca>/msn <msnim:chat?contact=Shane.Turner@newpace.ca> Shane.Turner(a)NewPace.ca <aim:GoIm?screenname=Shane.Turner@newpace.ca> skype saturnjct <skype:saturnjct>

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[smart_ptr] forward instead of including shared_ptr.hpp
by Rune Lund Olesen 11 Oct '12

11 Oct '12

Hello all Anyone got an opinion on this. I looked in boost, and there doesn't seem to be forwards for this. Suppose I am writing my .h file, instead of including shared_ptr.hpp i could just forward it using the following: namespace boost { template <class T> class smart_ptr<T>; } My concern is compilation time, as im going to do this in 1000+ .h files. If, in the user code, the function returning smart_ptr is not used, this could save some compilation time, but then again is that enough to justify a forward ? Regards Rune

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Re: [Boost-users] [CMake] [boost][b2] Differenciate 32bit and 64 bit binaries when using CMake.
by Klaim - Joël Lamotte 11 Oct '12

11 Oct '12

Júlio Hoffimann said: > > I don't know if i understood correctly, but you can set the library > directory by hand, please refer to > /usr/share/cmake-<version>/Modules/FindBoost.cmake, in particular the > variable BOOST_LIBRARYDIR. On Thu, Oct 11, 2012 at 1:29 PM, Miller, Frank <FMiller(a)sjm.com> wrote: > A simple solution would be to install only the 64bit version of boost > into a new directory and change the environment variable to point there. > Then FindBoost will only be able to see the version you want. > Thanks, this will solve my immediate problem, but it don't solve it in general. (I will use it though, so thanks) I can't guarantee where the boost libraries are installed for other developers of my project, that's why I use FindBoost. My current understanding is that boost don't have a specific default lib dir for different address models, which is the source of the problem as FindBoost script can't rely on a protocol to find these lib files. Am I correct? Joel Lamotte

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[boost][CMake][b2] Differenciate 32bit and 64 bit binaries when using CMake.
by Klaim - Joël Lamotte 11 Oct '12

11 Oct '12

I am having a problem with b2 on Windows using Visual Studio (2010 & 2012 but it is irrelevant): Until now I was building boost with b2 in a way that would first build 32 bit version in the default library directory, then the 64bit version in lib/64 . I wasn't using the 64bit version until this morning so I didn't get any problem whatever my use of boost was. I often use Cmake these days and I set the boost environment variables for FindBoost CMake script to find it. My problem is that I'm trying now to use the 64 bit version now and CMake FindBoost script will only find the 32 bit version. CMake correctly assume that the library files in the lib directory are the one to use, however it have no apparent way to find if it is for 64 or 32 bit. Now I'm not sure how to fix this. I see two solutions but I don't see how to apply them: 1. make b2 generate lib and dll files with an additional indication on if it's 64 or 32 bit address model. I didn't find such option in b2 --help so I assume that it is not possible? 2. find a way for CMake FindBoost to automatically find the 64 bit binaries instead of the 32 bit binaris. I don't see a clear solution to achieve this, because it depends a lot on how boost have been compiled. Note: I don't want to use a default boost installation, I want to use my custom build. Any advice on how I should proceed? Thanks for your patience. Joel Lamotte

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[boost::filesystem] Getting the uid or gid of a file
by Avishay Orpaz 11 Oct '12

11 Oct '12

The filesystem library does not include any function to access the uid and gid of a file. Is there other way than calling the native stat()? Avishay

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