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Newbie: Building Boost.Python Libs Nomenclature
by Shawn Cook 29 Oct '07

29 Oct '07

I just need a sanity check: I would like to embed a Python interpreter in my C++ application. I am following all the instructions as accurately as I can (http://www.boost.org/more/getting_started/windows.html) When I build the Python library binary (as mentioned in the Boost.Python installation instructions) I do not get any errors. If necessary I can respond with my Boost.Build output - but it's rather lengthy. Anyway, this paragraph in the Boost.Python Embedding tutorial says I'm looking for a library file named "boost_python_debug.lib" which does not exist. Here is the paragraph in question: ' Boost.Python's library comes in two variants. Both are located in Boost's /libs/python/build/bin-stage subdirectory. On Windows, the variants are called boost_python.lib (for release builds) and boost_python_debug.lib (for debugging). If you can't find the libraries, you probably haven't built Boost.Python yet. See Building and Testing on how to do this.' (from: http://www.boost.org/libs/python/doc/tutorial/doc/html/python/embedding.html) But I'm not getting any build errors, in fact I'm building all the different MSVC runtime variants (debug, release, static, dynamic, etc) and they all appear to be built - but they are named different than "boost_python.lib" and are not in the /libs/python/build/bin-stage directory. Is this paragraph just deprecated and needing some revisiting by the faithful Boost Technical Writers? Thanks, folks, -S. _________________________________________________________________ Peek-a-boo FREE Tricks & Treats for You! http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us

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START. Is anyone going to explain me the way to use BOOST in a C++ program?
by question boost 29 Oct '07

29 Oct '07

Hi, 1 My program under Code Blocks makes use of Boost. The arrangement of my files is the following: in the directory of the source files of my program there is the directory "boost" containing the following directories: "filesystem", "config", "iterator","range","detail", "mpl", "preprocessor", "tools" and the file boost-build.jam. 2 The file that makes use of boost in my project contains the following lines: #include <string> using namespace std; #include "boost\filesystem\path.hpp" #include "boost\filesystem\operations.hpp" using namespace boost::filesystem; 3 At build I get the message :"boost/preprocessor/config/config.hpp" no such file or directory and several other similar messages about other files of the same directory and about other files of the "mpl" directory. I've followed all the instructions here http://www.boost.org/doc/html/jam/building.html and here http://www.boost.org/doc/html/bbv2/installation.html At end of step 4 of http://www.boost.org/doc/html/bbv2/installation.html, the problem at build remains the same:I get the same message. Thank you for your help. David _________________________________________________________________ Découvrez le blog Messenger Le Meilleur du Web : toutes les vidéos qui buzzent le plus sur Internet ! http://meilleurduweb.spaces.live.com/

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shared_ptr memory leak in VC2005?
by zzp good 29 Oct '07

29 Oct '07

hi, guys, I found memory leak using the following code: #include <boost\array.hpp> #include <boost\shared_ptr.hpp> using namespace boost; class C { public: shared_ptr<C> pNext; }; void test() { shared_ptr<C> c0(new C()); shared_ptr<C> c1(new C()); c0 -> pNext = c1; c1 -> pNext = c0; } void main() { test(); _CrtDumpMemoryLeaks(); } when running with F5, it said: Detected memory leaks! Dumping objects -> d:\program files\microsoft visual studio 8\vc\include\crtdbg.h(1147) : {126} normal block at 0x003A64B0, 16 bytes long. Data: < E hd: > C4 17 45 00 01 00 00 00 01 00 00 00 68 64 3A 00 d:\program files\microsoft visual studio 8\vc\include\crtdbg.h(1147) : {125} normal block at 0x003A6468, 8 bytes long. Data: < c: d: > D0 63 3A 00 18 64 3A 00 d:\program files\microsoft visual studio 8\vc\include\crtdbg.h(1147) : {124} normal block at 0x003A6418, 16 bytes long. Data: < E c: > C4 17 45 00 01 00 00 00 01 00 00 00 D0 63 3A 00 d:\program files\microsoft visual studio 8\vc\include\crtdbg.h(1147) : {123} normal block at 0x003A63D0, 8 bytes long. Data: <hd: d: > 68 64 3A 00 B0 64 3A 00 Object dump complete. Any body have an idea about this? Thanks very much.

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[signal,bind] upgrade problem from 1.33 to 1.34
by David Angelo 29 Oct '07

29 Oct '07

Hi folks, I have a problem with upgrading from boost version 1.33 to 1.34. My code runs fine with 1.33, but when compiling and linking againt 1.34 I get the following runtime error (backtrace): <backtrace> #0 0x81d4c9b2 in void boost::function1<void, float, std::allocator<void> >::ass ign_to<boost::_bi::bind_t<void, boost::_mfi::mf1<void, fpCTPart, float>, boost:: _bi::list2<boost::_bi::value <fpCTPart*>, boost::arg<1> (*)()> > >(boost::_bi::bi nd_t<void, boost::_mfi::mf1<void, fpCTPart, float>, boost::_bi::list2<boost::_bi ::value<fpCTPart*>, boost::arg<1> (*)()> >)::stored_vtable () from /home/david/eclipseM6/toolManagement/lib/libfpCTToolPack.so #1 0xb4438841 in boost::function0<void, std::allocator<void> >::clear ( this=0xa1a03fc) at /usr/include/boost/function/function_template.hpp:388 #2 0xb4438879 in ~function0 (this=0xa1a03fc) at /usr/include/boost/function/function_template.hpp:313 #3 0xb443889d in ~function (this=0xa1a03fc) at /usr/include/boost/function/function_base.hpp:92 #4 0x81a34c39 in ~holder (this=0xa1a03f8) at /home/david/apps/boost_1_34_1/include/boost-1_34_1/boost/any.hpp:106 #5 0x81137b41 in boost::signals::detail::named_slot_map::insert () from /home/david/apps/boost_1_34_1/lib/libboost_signals-gcc41-1_34_1.so.1.34. 1 #6 0x8113b562 in boost::signals::detail::signal_base_impl::connect_slot () from /home/david/apps/boost_1_34_1/lib/libboost_signals-gcc41-1_34_1.so.1.34. 1 #7 0x81a36e58 in boost::signal0<void, boost::last_value<void>, int, std::less<i nt>, boost::function<void ()(), std::allocator<void> > >::connect ( this=0x82eac060, in_slot=@0xbfe145f0, at=boost::signals::at_back) ---Type <return> to continue, or q <return> to quit---bt at /home/david/apps/boost_1_34_1/include/boost-1_34_1/boost/signals/signal_template.hpp:286 #8 0x81b359f6 in fpCTPart::initPart (this=0x82eaa7f0) at /home/david/eclipseM6/toolManagement/extensions/fpCTToolPack/parts/src/fpCTPart.cpp:173 </backtrace> Line 173 in fpCTPart.cpp is: geomNode->sigPreLoad.connect(boost::bind(&fpCTPart::slotFilePreLoaded, this)); Are there any changes between these to versions in the bind/signal library? (Are they not backward compatible?) Thanks in advance. Regards, David

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[signals] How not to ignore 'trackable'?
by Nat Goodspeed 27 Oct '07

27 Oct '07

I have a callback design based around Boost.Signals. The documentation says: http://boost.org/doc/html/signals/tutorial.html#id1627926 "Warning: User-defined function objects and function objects from other libraries (e.g., Boost.Function or Boost.Lambda) do not implement the required interfaces for trackable object detection, and will silently ignore any bound trackable objects. Future versions of the Boost libraries will address this limitation." I would like to define a filter function object to be used something like this: // define signal_t, handler_t typedef boost::signal<void()> signal_t; typedef signal_t::slot_type handler_t; signal_t mySignal; // straightforward use case struct Listener: public boost::signals::trackable { void someMethod() {} }; Listener* myListener = new Listener(); mySignal.connect(boost::bind(&Listener::someMethod, myListener)); // the following should disconnect delete myListener; mySignal(); // should do nothing // define filter function object struct Filter { Filter(const handler_t& handler, somedata_t somedata): mHandler(handler), mSomeData(somedata) {} void operator()() { if (mSomeData) { mHandler(); } } handler_t mHandler; somedata_t mSomeData; }; // use filter function object myListener = new Listener(); mySignal.connect(Filter(boost::bind(&Listener::someMethod, myListener), somedata)); // doc promises the following will NOT disconnect delete myListener; mySignal(); // the dreaded undefined behavior Unfortunately there are two hurdles to getting there. 1. How could I code Filter to honor the 'trackability' of the passed-in handler? 2. slot_type is not itself callable: mHandler() doesn't work. 2a. I could use boost::function for handler_t instead: typedef boost::function<void()> handler_t; but the documentation promises that this, too, will ignore Filter's trackable base class. 2b. I could make Filter store a signal_t instead of a handler_t. Filter's constructor could call mHandler.connect(handler) instead of initializing mHandler from handler. But that doesn't work because signal_t is noncopyable, and passing a Filter instance to connect() copies it. I'd be willing to make Filter trackable, stipulating that Filter instances must live on the heap: mySignal.connect(new Filter(etc.)); // or boost::bind() of same Then Filter could store signal_t because the Filter object wouldn't be copied. When the Listener object is destroyed, it would automatically disconnect from the Filter's signal_t. But that would leave me with an orphan Filter object with an empty signal_t permanently connected to mySignal. Could Filter be informed when slots are disconnected from its contained signal_t? When the last slot is disconnected, it could 'delete this'. With Filter trackable, that would disconnect it from mySignal, and everyone would be happy. (There's the performance cost of introducing another signal object through which the call must be forwarded, but I hope that will be negligible.) So: is there any way for Filter to intercept control when the last (only) slot disconnects from Filter::mHandler? (Filter stores a subclass of signal_t?) Is there any other way to accomplish what I'm trying to do here? Thanks.

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RegExp - Callback function
by Golan Trevize 27 Oct '07

27 Oct '07

Hello. First... I'm sorry for my english. And second - I've got small problem. I need use regexp. The idea is that I use 'replace', it find some text like in expression and this will be an input for function... then in function something happen and output of the function replace in text the input of the function... For example I've got text "Solution: 5 and 4". Regular expression is "[0-9]" And the function is "add5" int add5(int input){return input+5} And the output of this function replace the number with number+5... And in the end text will be: "Solution: 10 and 9" In C++ with Boost? I don't know how can I do it... something like this.... #include <cstdlib> #include <iostream> #include <boost/regex.hpp> using namespace std; using namespace boost; // the callback function string add5(string x) { int v; v =atoi(x.c_str()) + 5; string vystup = (char *)v; return vystup; } int main(int argc, char *argv[]) { string t; string k; t = "Solution: 4"; regex expression("[0-9]"); k=regex_replace(t, expression,add5, boost::match_default|boost::format_all); cout << k << endl; system("PAUSE"); return EXIT_SUCCESS; } How can I rewrite this line: k=regex_replace(t, expression,add5, boost::match_default|boost::format_all); And how I change the callback function add5... If someone know, thank you for answers and advices.

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[typeof] Duplicate definition of boost::type_of::push_back
by Dave Jenkins 27 Oct '07

27 Oct '07

Hi, I'm testing with BOOST_TYPEOF_LIMIT_SIZE greater than 50 and native typeof disabled. I get a "class template has already been defined" error on "template<class V, class T> struct push_back" whenever BOOST_TYPEOF_LIMIT_SIZE is *not* a multiple of 50. This is because push_back is defined in both "typeof/vector.hpp" and, for example, "typeof/vector50.hpp". My fix is to change the push_back definition in "typeof/vector.hpp" to: # if BOOST_TYPEOF_LIMIT_SIZE < 50 template<class V, class T> struct push_back { typedef V type; }; # endif Can someone please confirm that this is the correct fix? A tiny program demonstrating the problem is listed below. Thanks, Dave Jenkins #define BOOST_TYPEOF_COMPLIANT #define BOOST_TYPEOF_LIMIT_SIZE 51 #include <boost/typeof/typeof.hpp> int main(){ return 0; }

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[type_traits] upcoming standard question...
by Ovanes Markarian 26 Oct '07

26 Oct '07

Hello! I am just wondering, that the upcoming standard does not provide the is_rvalue type_trait. At least I did not find it in the mailings. Since there is an is_reference trait and rvalues are going to be added to the standard, don't you think the is_rvalue should be a part of upcoming standard type_traits? Many Thanks, Ovanes

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boost::serialization Qestion about versioning.
by Oleg Udovenko 26 Oct '07

26 Oct '07

Hi, As I can see from the documentation the library has only a forward compatibility. 3. Independent versioning for each class definition. That is, when a class definition changed, older files can still be imported to the new version of the class. Is there any way to achieve a backward compatibility? Thanks, Oleg.

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Boost.Test: problem with BOOST_CHECK_EQUAL for negative chars
by Mignon Belongie 26 Oct '07

26 Oct '07

The following causes a fatal error (at least for me): char c1 = -2; char c2 = -2; BOOST_CHECK_EQUAL(c1, c2); The message is: Assertion failed: (unsigned)(c + 1) <= 256 Thanks, Mignon

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boost-users [shared_array] comparing the value.
by chun ping wang 25 Oct '07

25 Oct '07

Hi I notice boost shared_array compares the pointer address not the pointer themselves. What would be the best way to compare the actual value of boost shared_array. 1.) shared_array<T> a; shared_array<T> b; 1.) return (a.len == b.len && (memcmp(a, b, len) == 0)); or 2.) if (a.len != b.len) return false; for (ptrdiff_t i = 0; i != a.len; ++i) if(a[i] != b[i]) return false; One that works ALL the times.

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Building boost::system
by Simon Pickles 25 Oct '07

25 Oct '07

Hi, Since the new update of boost::asio, I need to build boost::system. I built it using bjam in the boost/system/build directory, and it built: boost_system_vc80-gd-1_34_1.lib but my compiler needs: libboost_system-vc80-mt-gd-1_34_1.lib I'm not sure what the difference between the boost and libboost version, but I know the mt is multithreaded.... Can anyone advise? Thanks Si

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boost-1_34_1 in program_options getting compiling error : parse error before >
by Salles, Joaquim Campos 25 Oct '07

25 Oct '07

Hello, I'm using boost.1.34 and when I try to compile I get the following error: /usr/local/include/boost-1_34_1/boost/program_options/parsers.hpp:156: parse error before `>' I also try: ./configure --with-libraries=program_options Make And get the some error. What is my mistake? Thanks, Joaquim P.S. About g++ g++ -v Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)

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Boost Problem
by question boost 25 Oct '07

25 Oct '07

Hi, my program makes use of Boost(Code Blocks). The arrangement of my files is the following: 1 in the directory of the source files of my program there is the directory "boost" containing the following directories: "filesystem", "config", "iterator","range","detail", "mpl", "preprocessor", "tools" and the file boost-build.jam. 2 The file that makes use of boost in my project contains the following lines: #include <string> using namespace std; #include "boost\filesystem\path.hpp" #include "boost\filesystem\operations.hpp" using namespace boost::filesystem; At compilation I get the message :"boost/preprocessor/config/config.hpp" no such file or directory and several other similar messages about other files of the same directory and about other files of the "mpl" directory. What goes wrong? Thank You David _________________________________________________________________ Découvrez le blog Messenger Le Meilleur du Web : toutes les vidéos qui buzzent le plus sur Internet ! http://meilleurduweb.spaces.live.com/

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Thread Group fails to run
by Apostolos Apostolidis 25 Oct '07

25 Oct '07

Hi all. I have developed some code allowing a thread group of 500 threads to run. However, as soon as the 381st thread is spawned, I get the following runtime error : terminate called after throwing an instance of 'boost::thread_resource_error' what(): boost::thread_resource_error The Boost documentation does not clarify the nature of the error, so I was wondering if anyone can help me out here. The (simple) program code follows. #include <boost/thread/mutex.hpp> #include <boost/thread/thread.hpp> #include <boost/bind.hpp> using namespace std; boost::mutex io_mutex; void foo(int i) { boost::mutex::scoped_lock lock(io_mutex); cout << i << endl; } int main(int argc, char *arvg[]) { boost::thread_group tg; for(int i = 0;i < 500;i++) tg.create_thread(boost::bind(&foo,i)); tg.join_all(); }

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Using mpl::remove with template paramter
by spider tong 25 Oct '07

25 Oct '07

Hi all, I'm trying to use mpl::remove to do some processing with a template parameter, like this template<typename T0, typename T1=null_type, ... typename Tn=null_type> struct my_class { typedef mpl::vector<T0, T1,...Tn> my_vector; typedef mpl::remove<my_vector, null_type>::type my_non_vector; //failed here }; Compiler report that my_vector is not derive from my_class<T0, T1,..Tn>. It seems that 'remove' would test the sequence at once, and my_vector still un_known yet, so it fails, is this guess right? //-------------------------------------------------------------------------- And I've tried this fusion too: teypdef vector<Class1, Class2, null_type, null_type> vec; vec v; fusion::for_each<v, print>; it seems that it iterate 4 times, not 2, even size(vec) return 2. It seems only evaluate will skip null_type, iterate will go through all member, is my guess right? Best Regards Spider

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Re: [Boost-users] Request to know about "dynamic expression evaluation"
by Borse, Ganesh 25 Oct '07

25 Oct '07

Hi, You recommended checking the "expression templates". However, expression templates (xpressive) provides the means of parsing the input expressions in to tokens. It does not have the support for evaluating these expressions. --- please correct me if I'm wrong. Thanks, Ganesh > _____________________________________________ > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org <mailto:boost-users-bounces@lists.boost.org> ] On Behalf Of boost-users-request(a)lists.boost.org > Sent: 24 October 2007 02:29 > To: boost-users(a)lists.boost.org > Subject: Boost-users Digest, Vol 1428, Issue 3 > > Send Boost-users mailing list submissions to > boost-users(a)lists.boost.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.boost.org/mailman/listinfo.cgi/boost-users <http://lists.boost.org/mailman/listinfo.cgi/boost-users> > or, via email, send a message with subject or body 'help' to > boost-users-request(a)lists.boost.org > > You can reach the person managing the list at > boost-users-owner(a)lists.boost.org > > When replying, please edit your Subject line so it is more specific than "Re: Contents of Boost-users digest..." > > > Today's Topics: > > 1. Re: Request to know about "dynamic expression evaluation" > (Robert Ramey) > 2. seeding a boost::random number generator...? (Graham Reitz) > 3. Thread Library Problem (Andres Herrera) > 4. boost::serialization Is there any way to get rid of compiler > warnings(C4103, ...) on VC++ 2005? (Oleg Udovenko) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 23 Oct 2007 09:15:17 -0700 > From: "Robert Ramey" <ramey(a)rrsd.com> > Subject: Re: [Boost-users] Request to know about "dynamic expression > evaluation" > To: boost-users(a)lists.boost.org > Message-ID: <ffl6mi$25v$1(a)ger.gmane.org> > Content-Type: text/plain; charset="iso-8859-1" > > Request to know about "dynamic expression evaluation"Look for "expression templates" > > Robert Ramey > "Borse, Ganesh" <ganesh.borse(a)credit-suisse.com> wrote in message news:F444CAE5E62A714C9F45AA292785BED327C3BE87@esng11p33001.sg.csfb.com <news:F444CAE5E62A714C9F45AA292785BED327C3BE87@esng11p33001.sg.csfb.com> ... > Hi, > I would like to perform the dynamic expression evaluation in my c++ application. > The dynamic expressions are like the SQL queries. > Since the expressions could be nested & hence the parsing & evaluation of such expressions is reducing the performance of my application. > > May I please know, whether BOOST provides a support for such dynamic expression evaluation in C++? > Please guide. > > Thanks in advance for the guidance. > > Regards, > Ganesh > > > ============================================================================== > Please access the attached hyperlink for an important electronic communications disclaimer: > > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html <http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html> > ============================================================================== > > > > ------------------------------------------------------------------------------ > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users <http://lists.boost.org/mailman/listinfo.cgi/boost-users> >

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The arrangement of a boost program
by question boost 25 Oct '07

25 Oct '07

Hi, 1 My program under Code Blocks makes use of Boost. The arrangement of my files is the following: in the directory of the source files of my program there is the directory "boost" containing the following directories: "filesystem", "config", "iterator","range","detail", "mpl", "preprocessor", "tools" and the file boost-build.jam. 2 The file that makes use of boost in my project contains the following lines: #include <string> using namespace std; #include "boost\filesystem\path.hpp" #include "boost\filesystem\operations.hpp" using namespace boost::filesystem; 3 At compilation I get the message :"boost/preprocessor/config/config.hpp" no such file or directory and several other similar messages about other files of the same directory and about other files of the "mpl" directory. I've followed all the instructions here http://www.boost.org/doc/html/jam/building.html and here http://www.boost.org/doc/html/bbv2/installation.html At end of step 4 of http://www.boost.org/doc/html/bbv2/installation.html, the problem at compilation remains the same. Thank you for your response. David _________________________________________________________________ Retrouvez Windows Live Messenger sur votre mobile ! http://www.messengersurvotremobile.com

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Compiling 1.34.1 on OpenSUSE 10.3
by Ruediger Berlich 25 Oct '07

25 Oct '07

Hi there, OpenSUSE 10.3 is still delivered with Boost 1.33.1 . Hence I've downloaded Boost 1.34.1 and tried to compile it. I ran the configure script and then make. The resulting bjam immediately dies with an error: ./tools/jam/src/bin.linuxx86/bjam --user-config=user-config.jam /bin/sh: line 1: 2090 Speicherzugriffsfehler ./tools/jam/src/bin.linuxx86/bjam --user-config=user-config.jam "Speicherzugriffsfehler" means "memory access violation". This is on a Pentium-D dual-core system (4GB main memory) running with a 32-bit Linux kernel 2.6.22, g++ 4.2.1 . Does anyone have experience with this constellation ? Compilation of 1.34 worked fine on OpenSUSE 10.2 . Thanks and best regards, Ruediger

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[boost-users] anyways to flatten a stl container.
by chun ping wang 24 Oct '07

24 Oct '07

Is their some kind of method to flatten a stl container... example [[1, 4], [a,b, c], [b, [e]] ] becomes [1, 4, a, b, c, b, e]

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Question about versioning of serialization
by Fred Lupien 24 Oct '07

24 Oct '07

Hello, we are currently implementing serialization versioning using boost and I am curious to know if their is a way to support a changing class hierarchy. Let's say C derives from A for a while and then a change requires C to derive from B instead, which derives from A. Is it possible to support such a change provided we know what default values are needed for the new class? I tried and even if don't serialize anything in class C I get stream errors because I believe boost saves some base info for each class. When it tries to reload those value from a old stream, obviously it desynchronizes it because the values are not in the stream. So is their a way around this? Also is it possible to support the removal of a class. If, for exemple C derives from B which in turn derives from A and suddenly B is removed. Is their a way to deal with this without invalidating all previously saved data? Thank you for your help! -- Frédérick Martel-Lupien Étudiant en Génie Informatique Université de Sherbrooke fred.lupien(a)gmail.com

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dereferencing type-punned pointer in function_base under gcc-4.3
by Benoit Hudson 24 Oct '07

24 Oct '07

I'm trying to make sure my code compiles under gcc-4.3 before that compiler comes out. I'm currently stuck on an error it reports in boost, version 1.34.1 (which I downloaded seconds ago; error was also present in 1.34.0): In file included from ../boost/function/detail/prologue.hpp:16, from ../boost/function.hpp:22, from ../boost/iterator/transform_iterator.hpp:10, from [my code]: ../boost/function/function_base.hpp: In member function 'const std::type_info& boost::function_base::target_type() const': ../boost/function/function_base.hpp:485: error: dereferencing type-punned pointer will break strict-aliasing rules I don't understand how there's any type-punning going on at line 485, although to my untrained eye it looks a lot like it's returning a ref to a temporary. A couple lines later looks only very slightly fishier, but still shouldn't be breaking any aliasing rules. So I leave it to the experts to figure out what's going on here. -- Benoît

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installation on Borland Developer Studio 2006 (C++Builder)
by Harald Wolf - G. Ulmer Automation GbmH 24 Oct '07

24 Oct '07

Hi, how do i install boost with the BSD2006? The installer package seems not to work: ------my first try was------------------------------------------------------ #include "boost/date_time/gregorian/gregorian.hpp" //include all types plus i/o ... ... ---------------------------------------------------------------------------- - i get: [Linker Fataler Fehler] Fatal: Datei 'LIBBOOST_DATE_TIME-BCB-MT-D-1_34_1.LIB' kann nicht geöffnet werden since the C:\Programme\Borland\BDS\4.0\include\boost\boost_1_34_1\lib directory only has *vc* files. So i downloaded the: boost_1_34_1.zip BUT here i have to build the LIBs and i'm a C++ Newbiew! How do i build the Libs? PLEASE HELP!

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[program_options] Translating messages to another language
by Pavel Syomin 24 Oct '07

24 Oct '07

Hi to all! I am writing some application that uses program_options. This application interacts with user using non-english language. Is there any way to translate "what" messages from exceptions to another language? At now I found only one way (rather hack :) ): static void store(const basic_parsed_options<char> &options, variables_map &variables) { try { program_options::store(options, variables); } catch(unknown_option &error) { const char *what = error.what(); static const char prefix[] = "unknown option "; if(!strncmp(what, prefix, sizeof(prefix) - 1)) throw logic_error("Неизвестная опция: " + string(what + sizeof(prefix) - 1)); throw logic_error("Неверный формат командной строки"); } } Another way is to redefine function invalid_command_line_syntax::error_message(), but in such case we can translate only some messages.

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error2632:__int64 problem
by mmoges 24 Oct '07

24 Oct '07

Hi All, I am not sure if this issue has been dealt with already in this forum. But I couldn't find satisfactory answer on the Net. I am using Boost in an application that is working perfectly fine. I had to modify the application in a number of ways and I copied it to a different folder, and when I try to build it, it complains with errors and warnings that have never occured with the orignal application. Please find the error report below: c:\Boost\include\boost-1_33_1\boost\cstdint.hpp(304) : error C2632: '__int64' followed by '__int64' is illegal c:\Boost\include\boost-1_33_1\boost\cstdint.hpp(304) : warning C4091: 'typedef ' : ignored on left of '__int64' when no variable is declared c:\Boost\include\boost-1_33_1\boost\cstdint.hpp(307) : warning C4114: same type qualifier used more than once c:\Boost\include\boost-1_33_1\boost\cstdint.hpp(307) : error C2632: '__int64' followed by '__int64' is illegal c:\Boost\include\boost-1_33_1\boost\cstdint.hpp(307) : warning C4091: 'typedef ' : ignored on left of 'unsigned __int64' when no variable is declared c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\xlocmon(231) : fatal error C1903: unable to recover from previous error(s); stopping compilation I am a bit puzzled by this problem. I really appreciate any help. Thank you in advance. Best regards, Metty __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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