id summary reporter owner description type status milestone component version severity resolution keywords cc 5326 several g++ warnings found when compile boost::interprocess examples frankrq2009@… Ion Gaztañaga "Hi, When I compiled the examples on boost_1_46_1/doc/html/interprocess/synchronization_mechanisms.html, in windows 7 g++ mingw 4.5.2 generated the executable with the following warnings(though the program run correctly). output of g++ mingw 4.5.2 in DevC++: Compiler: Default compiler Building Makefile: ""C:\code\test\ipc2\dev\Makefile.win"" Executing make... mingw32-make -f ""C:\code\test\ipc2\dev\Makefile.win"" all g++.exe -c ../ipc2.cpp -o ../ipc2.o -I""include"" -I""F:/boost_1_46_1"" -Wall -Wno-deprecated -DWIN32 -mthreads -march=i686 -fexceptions -std=gnu++0x -DNDEBUG -fexceptions -O2 In file included from F:/boost_1_46_1/boost/interprocess/errors.hpp:37:0, from F:/boost_1_46_1/boost/interprocess/exceptions.hpp:20, from F:/boost_1_46_1/boost/interprocess/shared_memory_object.hpp:17, from ../ipc2.cpp:1: F:/boost_1_46_1/boost/interprocess/detail/win32_api.hpp: In function 'bool boost::interprocess::winapi::get_wmi_class_attribute(std::wstring&, const wchar_t*, const wchar_t*)': F:/boost_1_46_1/boost/interprocess/detail/win32_api.hpp:1472:21: warning: unused variable 'co_initialize_end' In file included from F:/boost_1_46_1/boost/date_time/microsec_time_clock.hpp:23:0, from F:/boost_1_46_1/boost/date_time/posix_time/posix_time_types.hpp:11, from F:/boost_1_46_1/boost/interprocess/detail/posix_time_types_wrk.hpp:23, from F:/boost_1_46_1/boost/interprocess/sync/scoped_lock.hpp:31, from ../ipc2.cpp:3: F:/boost_1_46_1/boost/date_time/filetime_functions.hpp: At global scope: F:/boost_1_46_1/boost/date_time/filetime_functions.hpp:57:90: warning: declaration of 'void boost::date_time::winapi::GetSystemTimeAsFileTime(boost::date_time::winapi::FILETIME*)' with C language linkage F:/boost_1_46_1/boost/interprocess/detail/win32_api.hpp:798:49: warning: conflicts with previous declaration 'void boost::interprocess::winapi::GetSystemTimeAsFileTime(boost::interprocess::winapi::interprocess_filetime*)' F:/boost_1_46_1/boost/date_time/filetime_functions.hpp:58:122: warning: declaration of 'int boost::date_time::winapi::FileTimeToLocalFileTime(const boost::date_time::winapi::FILETIME*, boost::date_time::winapi::FILETIME*)' with C language linkage F:/boost_1_46_1/boost/interprocess/detail/win32_api.hpp:799:49: warning: conflicts with previous declaration 'int boost::interprocess::winapi::FileTimeToLocalFileTime(const boost::interprocess::winapi::interprocess_filetime*, const boost::interprocess::winapi::interprocess_filetime*)' ../ipc2.cpp: In function 'int main()': ../ipc2.cpp:18:10: warning: unused variable 'remover' g++.exe ../ipc2.o -o ""ipc2.exe"" -L""lib"" -L""F:/boost_1_46_1/stage/lib"" -s -lole32 -loleaut32 -lboost_date_time-mgw45-mt-1_46_1 -s Execution terminated source file: #include #include #include #include ""doc_anonymous_mutex_shared_data.hpp"" #include #include using namespace boost::interprocess; int main () { try { //Remove shared memory on destruction struct shm_remove { ~shm_remove(){ shared_memory_object::remove(""MySharedMemory""); } } remover; //Open the shared memory object. shared_memory_object shm (open_only //only create ,""MySharedMemory"" //name ,read_write //read-write mode ); //Map the whole shared memory in this process mapped_region region (shm //What to map ,read_write //Map it as read-write ); //Get the address of the mapped region void * addr = region.get_address(); //Construct the shared structure in memory shared_memory_log * data = static_cast(addr); //Write some logs for(int i = 0; i < 100; ++i){ //Lock the mutex scoped_lock lock(data->mutex); //std::sprintf(data->items[(data->current_line++) % shared_memory_log::NumItems] // ,""%s_%d"", ""process_a"", i); printf(""%s\n"",data->items[i]); if(i == (shared_memory_log::NumItems-1)) data->end_b = true; //Mutex is released here } //Wait until the other process ends while(1){ scoped_lock lock(data->mutex); if(data->end_a) break; } } catch(interprocess_exception &ex) { std::cout << ""ipc exception caught:"" << ex.what() << std::endl; return 1; } return 0; } " Bugs closed To Be Determined interprocess Boost 1.45.0 Problem wontfix interprocess