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  • Boost singletons

    - by Ockonal
    Hi guys, at this page: http://torjo.com/tobias/index.html#boost_utility_singleton._usage I saw that boost has singleton class which gets second param: recreate instance if it's deleted (when we call the singleton). I can't find the implementation of this singleton in boost library. There is only singletons from serialization and pool. What's wrong?

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  • basic boost date_time input format question

    - by Chris H
    I've got a pointer to a string, (char *) as input. The date/time looks like this: Sat, 10 Apr 2010 19:30:00 I'm only interested in the date, not the time. I created an "input_facet" with the format I want: boost::date_time::date_input_facet inFmt("%a %d %b %Y"); but I'm not sure what to do with it. Ultimately I'd like to create a date object from the string. I'm pretty sure I'm on the right track with that input facet and format, but I have no idea how to use it. Thanks.

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  • Boost::Serialization Mpi Sending array of user defined types

    - by Noman Javed
    I want to send my Array class using boost Mpi template class Array { private: int size; T* data; public: // constructors + other stuff }; Here T can be any built in type or user defined type. Suppose I have a class complex struct complex { std::vector real_imag; // contain two elements }; So the question is how can I send Array using Boost::Mpi + serialization. Thanks in anticipation Regards Noman

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  • In registration form adding date dialogbox how can apply validation in system date in dialog ends

    - by narasimha
    hi i am implementing registration form adding date field then click icon to display date dialog window then limit date validation in system date below date only how can implement the validation protected Dialog onCreateDialog(int id) { Calendar c = Calendar.getInstance(); int cyear = c.get(Calendar.YEAR); int cmonth = c.get(Calendar.MONTH); int cday = c.get(Calendar.DAY_OF_MONTH); switch (id) { case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, cyear, cmonth, cday); } return null; } private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { String date_selected = String.valueOf(monthOfYear+1)+" /"+String.valueOf(dayOfMonth)+" /"+String.valueOf(year); EditText birthday=(EditText) findViewById(R.id.EditTextBirthday); birthday.setText(date_selected); } }; public void onClick(View v) { if(v == b1) showDialog(DATE_DIALOG_ID); } } ** showing in system date in below dates only how can implemented some solution in running year to below years are display not incrementing above years this condition are appliying validations how can implemented ?

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  • Boost::Thread or fork()

    - by osmano807
    I'm testing boost::thread on a system. It happens that I needed to act as a fork(), because one thread modifies the other variables, even member variables of class I do the project using fork() or is there some alternative still using boost::thread Basically I run this program in Linux and maybe FreeBSD

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  • Boost info parser

    - by Ockonal
    Hello, I'm going to use boost INFO parser There is examples of file structure but not of using. Could you help me with reading key/value from boost info file?

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  • Correct use of boost lambda

    - by Niels P.
    Consider the following piece of C++0x code: a_signal.connect([](int i) { if(boost::any_cast<std::string>(_buffer[i]) == "foo") { base_class<>* an_object = new derived_class(); an_object->a_method(_buffer[i]); }}); How would it correctly look in Boost Lambda (since this C++0x feature can't be used yet)?

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  • How to iterate on boost::mutable_queue

    - by Tristram Gräbener
    Hello, I need a priority queue where I can increase or decrease the priority key. So boost::mutable_queue seemed perfect despite the lack of documentation. The problem is that I need to iterate at some point over all the elements in the queue. How can I do that? Or is there an othe data structure that would work (preferably in boost)?

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  • Does Boost work with IntervalZero RTX 2009?

    - by cs-79
    Hi all Rtx experts, Have anyone implemented hard real-time app on IntervalZero Rtx environment using Boost libraries? I wish to use the Boost `unordered` data structures instead of solely relying on STL::Vector. Or Array/Vector is the only data structure supported by Rtx? * Off topic question: Can we use STL::String instead of char pointer for string in Rtx? Thanks.

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  • Using Boost on ubuntu

    - by Dexter
    I've heard a lot of good comments about Boost in the past and thought I would give it a try. So I downloaded all the required packages from the package manager in Ubuntu 9.04. Now I'm having trouble finding out how to actually use the darn libraries. Does anyone know of a good tutorial on Boost that goes all the way from Hello World to Advanced Topics, and also covers how to compile programs using g++ on ubuntu?

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  • Trying to link my project with Boost.Thread using CMake

    - by wowus
    When I link Boost.Thread to my boost_test executable, it gives me make[2]: *** No rule to make target `/usr/lib64/libboost_thread-mt.so', needed by `gogo/test/test_boost'. Stop. when I make it. Here's the offending CMake code, what am I doing wrong? add_executable(boost_test boost_test.cpp) add_test(boost_test boost_test) # Boost auto-links for MSVC, so we exclude it. if(CMAKE_COMPILER_IS_GNUCXX) target_link_libraries(test_boost #LINK_INTERFACE_LIBRARIES ${Boost_THREAD_LIBRARY} ) endif()

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  • Iterating through boost ptr_vector

    - by Ockonal
    Hello, I have a ptr_vector list of my own objects. Something like this: boost::ptr_vector<SomeClass> *list; list.push_back(new SomeClass()>; ... BOOST_FOREACH(SomeClass *tempObj, list) // [x] { tempObj->... } >‘boost::ptr_vector<SomeClass>*’ is not a class, struct, or union type

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  • boost::function function pointer to parameters?

    - by high6
    How does boost::function take a function pointer and get parameters from it? I want wrap a function pointer so that it can be validated before being called. And it would be nice to be able to call it like boost::function is with the () operator and not having to access the function pointer member. Wrapper func; func(5); //Yes :D func.Ptr(5) //Easy to do, but not as nice looking

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  • Serialize boost array

    - by jules
    I would like to serialize a boost::array, containing something that is already serializable. If get this error: error C2039: 'serialize' : is not a member of 'boost::array<T,N>' I have tried to include the serialization/array.hpp header but it did not help. Is there another header to include ? According to the documentation I should be able to do that http://www.chuchusoft.com/serialization/doc/boost_types.html Thanks

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  • Missing A Detail About Boost (.lib files)

    - by bobber205
    Where do I find the lib files for linking my program when using some Boost libraries? Decided to try its threading functionality but I am getting Error 6 fatal error LNK1104: cannot open file 'libboost_thread-vc90-mt-gd-1_42.lib' InterviewPractice after I include Error 6 fatal error LNK1104: cannot open file 'libboost_thread-vc90-mt-gd-1_42.lib' InterviewPractice I can't find where to get the .lib files for proper linking on the boost website? Any tips? :)

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  • C++ boost function overloaded template

    - by aaa
    I cannot figure out why this segment gives unresolved overloaded function error (gcc version 4.3.4 (Debian 4.3.4-6)): #include <algorithm> #include <boost/function.hpp> int main { typedef boost::function2<const int&, const int&, const int&> max; max m(static_cast<max>(&std::max<int>)); } can you help me, thanks

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  • [C++] Missing A Detail About Boost (.lib files)

    - by bobber205
    Where do I find the lib files for linking my program when using some Boost libraries? Decided to try its threading functionality but I am getting Error 6 fatal error LNK1104: cannot open file 'libboost_thread-vc90-mt-gd-1_42.lib' InterviewPractice after I include Error 6 fatal error LNK1104: cannot open file 'libboost_thread-vc90-mt-gd-1_42.lib' InterviewPractice I can't find where to get the .lib files for proper linking on the boost website? Any tips? :)

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  • Passing template into boost function

    - by Ockonal
    template <class EventType> class IEvent; class IEventable; typedef boost::function<void (IEventable&, IEvent&)> behaviorRef; What is the right way for passing template class IEvent into boost function? With this code I get: error: functional cast expression list treated as compound expression error: template argument 1 is invalid error: invalid type in declaration before ‘;’ token

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  • Using an objects date (without time) for a table header instead of an objects date and time (iphone)

    - by billywilliamton
    I've been working on an iphone project and have run into an issue. Currently In the table view where it displays all the objects, I use headers based on the objects datePerformed field. The only problem is that my code apparently creates a header that contains both the date and time resulting in objects not being grouped solely by their date as I intended, but rather based on their date and time. I'm not sure if it matters, but when an object is created I use a date picker to pick the date, but not the time. I was wondering if anyone could give me any suggestions or advice. Here is the code where i set up the fetchedResultsController - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController != nil) { return fetchedResultsController; } // Create and configure a fetch request with the Exercise entity. NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Exercise" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // Create the sort descriptors array using date and name NSSortDescriptor *dateDescriptor = [[NSSortDescriptor alloc] initWithKey:@"datePerformed" ascending:NO]; NSSortDescriptor *nameDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:dateDescriptor, nameDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; // Create and initialize the fetch results controller NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:@"datePerformed" cacheName:@"Root"]; self.fetchedResultsController = aFetchedResultsController; fetchedResultsController.delegate = self; // Memory management calls [aFetchedResultsController release]; [fetchRequest release]; [dateDescriptor release]; [nameDescriptor release]; [sortDescriptors release]; return fetchedResultsController; } Here's where I set up the table header properties - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { // Display the exercise' date as section headings. return [[[fetchedResultsController sections] objectAtIndex:section] name]; } Any suggestions welcome. Thanks for your time. -Billy Williamton

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  • Building boost 1.42 on FreeBSD 6.3

    - by Ivan Perekluyev
    Hi, i need to build mapnik on freebsd 6.3, but port marked as 'broken', so i forced to build it from source. With boost 1.41 (which is in ports) mapnik doesn't build. somewhere in internet, i found that mapnik successfully builded with boost 1.42. So, i download patch from wiki.freebsd.org/BoostPortingProject andd apply it: wget http://alexanderchuranov.com/boost-port/boost-from-1.41-to-1.42-2010-02-16-17-11.diff cd /usr/ports patch -p0 -i ~/boost-from-1.41-to-1.42-2010-02-16-17-11.diff after that, i trying to install boost-all metaport, but its failed. cd devel/boost-all make install 2>&1 | tee build.log tail -n 100 build.log > short_build.log Build.log (attention, 5m !): dl.dropbox.com/u/7365614/build.log Short build log: http://paste.pocoo.org/show/224474/ Thanks!

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