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[iostreams] Assertion in filtering_stream dtor when using a code_ converter
by EMalenfant＠interstarinc.com 27 Apr '06

27 Apr '06

Hi, The following causes an assertion failure (in iostreams::detail::optional::operator*()) when destroying the filtering_stream: #include <boost/iostreams/filtering_stream.hpp> #include <boost/iostreams/code_converter.hpp> #include <boost/iostreams/device/file_descriptor.hpp> #include <windows.h> namespace io = boost::iostreams; int main (void) { io::wfiltering_stream<io::output> out; HANDLE h = CreateFileW(L"test.txt", … [View More]

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Multi Array problem
by Robert Ramey 27 Apr '06

27 Apr '06

I have a problem what is demonstrated in the attached file. Basically I have the following create multi_array - a1 create a view on the multiarray which has the same number of dimensions a1_view a1 == a1_view fails to compile. The attached example illustrates this. In the example I verify that both a1 and a1_view fullfill the requirements for Multi Array. The documentation states that in order for a type to be a model of the Multi Array concept. The operations a == b must be valid. … [View More]

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shared_ptr and RTTI?
by Foster Brereton 27 Apr '06

27 Apr '06

Hi all, I have this request from a colleague. Can anyone help me shed some light on his issue?: > I did not use the boost::shared_ptr in quite some time and I was > surprised to find out that, more recently, the shared_ptr _requires_ > RTTI to be enabled. I did some reading on the websites and groups and > while I admit that the new version is more flexible, powerful, etc, I > would have thought that they also left a switch in for the old behavior > which did not require … [View More]

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Using boost::lambda::bind with std::transform
by Kobi Cohen-Arazi 27 Apr '06

27 Apr '06

Hi, Would like to do the following with boost::lambda::bind #include <boost/lambda/lambda.hpp> #include <boost/lambda/bind.hpp> #include <algorithm> using namespace boost::lambda; struct Foo{ std::string get(){ ... } }; std::vector<Foo> array; // say it is already populated std::vector<std::string> tr; // the transformed instead using my handcrafted for loop, I would like to transform the std::list<Foo>::iterator endIter=array.end (); … [View More]

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[algorithm - strings] problems with borland c++ 6
by Federico Feller 27 Apr '06

27 Apr '06

Hi, Im having problems using the string algorithm of boost with Borland C++ 6.0. Precisely, I cant compile the sequence.cpp because of the following error: [C++ Error] sequence.hpp(186): E2285 Could not find a match for 'boost::algorithm::detail::replace<InputT,ForwardIteratorT>(StringE,char *,char *,undefined,undefined)' Iam using std::string for string algorithms. Any ideas? Thanks, Federico __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! … [View More]

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[checked_delete] pimpl with scoped_ptr<T>
by Herve Alexanian 27 Apr '06

27 Apr '06

Hello, This is my first post regarding boost, I hope I am sending it to the right list. I have a question regarding the use of scoped_ptr versus shared_ptr: I am trying to use scoped_ptr<Impl> to implement the "Pimpl" idiom in order to hide the Impl definition from the user. Since my class is not copyable I thought using a scoped_ptr was better suited than a shared_ptr. So, something like this: class Impl; class MyClass { scoped_ptr<Impl> m_pImpl; ... ... }; When compiling … [View More]

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[mpl] no result_type defined
by Frank Birbacher 27 Apr '06

27 Apr '06

Hi! I want to create a container of pointers to objects in a range (first,last(. I tried to use mpl, but have been without success. I understand, that the lambda "&_1" cannot specify its concrete return type, so I added ret<T>(...). But the resulting lambda is rejected by the make_transform_iterator function. I'm using boost 1.33.0 on gcc 4.0.2 //****** CODE BEGIN ****** #include <vector> #include <iterator> #include <boost/iterator/transform_iterator.hpp> #include … [View More]

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[BGL] How to build graphviz with MS VC8?
by Rui Carvalho 27 Apr '06

27 Apr '06

Hi, I'm trying to build graphviz so as to be able to use read_graphviz in the boost graph library. My understanding is that the make file in Boost 1_33_1\boost_1_33_1\libs\graph\src is not yet ready for VC -but I may be missing something obvious here. Is there a simple way to compile the graphviz library with VC? Thanks, Rui

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Boost::program_options - Linking Issue
by Adam Hartshorne 27 Apr '06

27 Apr '06

Using the following command lines on a linux box, g++ -c -pipe -Wall -W -O2 -pipe -m64 -fexceptions -D_REENTRANT -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -I/usr/lib64/qt-3.3/mkspecs/default -I. -Idcs/improc2/adam/boost_1_33_1/ -I/usr/lib64/qt-3.3/include -I.moc/ -o .obj/first.o first.cpp g++ -o cmdLineTest .obj/first.o -L/usr/lib64/qt-3.3/lib -L/usr/X11R6/lib64 -L/dcs/improc2/adam/boost_1_33_1/stage/lib/ -lboost_program_options-gcc -lqt-mt -lXext -lX11 -lm -lpthread I get the … [View More]

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[1.33.1][mpl] increasing BOOST_MPL_LIMIT_LIST_SIZE doesn't work
by Marc Mutz 27 Apr '06

27 Apr '06

Hi, According to the mpl docs, defining above macro to e.g. 30 should make boost::mpl::list<> take 30 template arguments, and thus enable boost::variant<> to hold 21 different types (default: 20 on my platform (gcc 4.0)). Yet compiling the attached sample program gives me attached error message, which indicates that mpl::list<> still takes only 20 template parameters. Bug? Thanks, Marc -- Marc Mutz -- marc(a)klaralvdalens-datakonsult.se, mutz(a)kde.org Klarälvdalens … [View More]

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