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boost::bind triggers seg fault if compiled with gcc optimizations
by Sebastian Weber 07 Apr '08

07 Apr '08

Hello, I'm using boost::bind to bind some member function of class two arguments, making it a nullary function call. If I compile things with any optimizations, then the resulting code causes seg-faults. Without optimizations, everything is fine. Any ideas? Some possible workaround? BTW, boost::lambda::bind results in the same behavior. My versions: gcc 4.1.3 on ubuntu gutsy, boost 1.35.0 Greetings, Sebastian Weber

2 4

Solution: use string trim algorithms with Borland C++ 2006
by Markus Svilans 07 Apr '08

07 Apr '08

Hello, Apparently the string trimming algorithms do not work "out of the box" with Borland C++ 2006. There is a rather easy solution, which I have written about here: http://www.wrongbananas.net/cpp/boost_trim_borland.html Regards, Markus.

2 2

Building boost with VC8 & bjam
by Michael Bradley Jr 07 Apr '08

07 Apr '08

Hi, i have Microsoft VC 8.0 and the actual Microsoft Vista SDK install on my box. When i try to build boost with bjam with the following parameters: "bin\bjam.exe" -d 0 stage --stagedir=. --toolset=msvc link=static runtime-link=shared architecture=x86 release debug address-model=32 i do get vc9 used instead of the vc8. How can i "tell" bjam to generate the library using vc8 instead of vc9? Any help is welcome Regards Mike

3 2

fusion tuple to pod object
by Sebastian Weber 07 Apr '08

07 Apr '08

Hi there! The fusion library seems to be the choice for handling tuple-like data in C++. However, for some reasons I would like to be able to transform a fusion vector into a pod object. Something like: fusion::vector<int, double, float> myVec; SOME_MAGIC_ADAPTER_MACRO(myVec) The macro or whatever should then turn the vector into struct myVec_pod { int v1; double v2; float v3; }; or similar. Is this possible? Greetings, Sebastian Weber

3 3

[1.35.0] Boost.Serialization fails to build on Cygwin
by Václav Haisman 06 Apr '08

06 Apr '08

Hi, the non-wchar_t variant of Boost.Serialization fails to link on Cygwin because codecvt_null<wchar_t> tries to use std::codecvt<wchar_t> as base but std::codecvt<wchar_t> doesn't seem to be present in Cygwin's libstdc++. The output of the failing build is attached. -- wilx warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (don't panic: this is a strictly optional feature). ...patience... ...patience... ...found 4222 targets... ...updating 14 targets... gcc.link.dll bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/libboost_serialization-gcc34-mt-1_35.dll.a "g++" "-Wl,--out-implib,bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/libboost_serialization-gcc34-mt-1_35.dll.a" -o "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/cygboost_serialization-gcc34-mt-1_35.dll" -Wl,-h -Wl,cygboost_serialization-gcc34-mt-1_35.dll -shared -Wl,--start-group "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/extended_type_info.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/extended_type_info_no_rtti.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/extended_type_info_typeid.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/polymorphic_iarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/polymorphic_oarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/stl_port.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_iarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_oarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/void_cast.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_grammar.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_iarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_oarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_archive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_iarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_iserializer.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_oarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_oserializer.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_pointer_iserializer.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_pointer_oserializer.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_serializer_map.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_iprimitive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_oprimitive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_xml_archive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_iarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_oarchive.o" "bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o" -Wl,-Bstatic -Wl,-Bdynamic -Wl,--end-group -Wl,--strip-all -mthreads bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVN5boost7archive12codecvt_nullIwEE[vtable for boost::archive::codecvt_null<wchar_t>]+0x14): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_unshift(_mbstate_t&, char*, char*, char*&) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVN5boost7archive12codecvt_nullIwEE[vtable for boost::archive::codecvt_null<wchar_t>]+0x20): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_always_noconv() const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVN5boost7archive12codecvt_nullIwEE[vtable for boost::archive::codecvt_null<wchar_t>]+0x24): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_length(_mbstate_t&, char const*, char const*, unsigned int) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x10): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_out(_mbstate_t&, wchar_t const*, wchar_t const*, wchar_t const*&, char*, char*, char*&) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x14): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_unshift(_mbstate_t&, char*, char*, char*&) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x18): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_in(_mbstate_t&, char const*, char const*, char const*&, wchar_t*, wchar_t*, wchar_t*&) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x1c): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_encoding() const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x20): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_always_noconv() const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x24): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_length(_mbstate_t&, char const*, char const*, unsigned int) const' bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVSt7codecvtIwc10_mbstate_tE[vtable for std::codecvt<wchar_t, char, _mbstate_t>]+0x28): undefined reference to `std::codecvt<wchar_t, char, _mbstate_t>::do_max_length() const' Creating library file: bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/libboost_serialization-gcc34-mt-1_35.dll.a collect2: ld returned 1 exit status ...failed gcc.link.dll bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/libboost_serialization-gcc34-mt-1_35.dll.a bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/cygboost_serialization-gcc34-mt-1_35.dll... ...removing bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/libboost_serialization-gcc34-mt-1_35.dll.a gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_wiprimitive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\basic_text_wiprimitive.o" "libs\serialization\src\basic_text_wiprimitive.cpp" libs\serialization\src\basic_text_wiprimitive.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_wiprimitive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_woprimitive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\basic_text_woprimitive.o" "libs\serialization\src\basic_text_woprimitive.cpp" libs\serialization\src\basic_text_woprimitive.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/basic_text_woprimitive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_wiarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\binary_wiarchive.o" "libs\serialization\src\binary_wiarchive.cpp" libs\serialization\src\binary_wiarchive.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_wiarchive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_woarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\binary_woarchive.o" "libs\serialization\src\binary_woarchive.cpp" libs\serialization\src\binary_woarchive.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/binary_woarchive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_wiarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\text_wiarchive.o" "libs\serialization\src\text_wiarchive.cpp" libs\serialization\src\text_wiarchive.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_wiarchive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_woarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\text_woarchive.o" "libs\serialization\src\text_woarchive.cpp" libs\serialization\src\text_woarchive.cpp:13:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/text_woarchive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/utf8_codecvt_facet.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\utf8_codecvt_facet.o" "libs\serialization\src\utf8_codecvt_facet.cpp" libs\serialization\src\utf8_codecvt_facet.cpp:8:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/utf8_codecvt_facet.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_wgrammar.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\xml_wgrammar.o" "libs\serialization\src\xml_wgrammar.cpp" libs\serialization\src\xml_wgrammar.cpp:14:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_wgrammar.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_wiarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\xml_wiarchive.o" "libs\serialization\src\xml_wiarchive.cpp" libs\serialization\src\xml_wiarchive.cpp:13:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_wiarchive.o... gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_woarchive.o "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\serialization\build\gcc-3.4.4\release\threading-multi\xml_woarchive.o" "libs\serialization\src\xml_woarchive.cpp" libs\serialization\src\xml_woarchive.cpp:13:2: #error "wide char i/o not supported on this platform" ...failed gcc.compile.c++ bin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi/xml_woarchive.o... ...skipped <pbin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi>libboost_wserialization-gcc34-mt-1_35.dll.a for lack of <pbin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi>basic_text_wiprimitive.o... ...skipped <pbin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi>cygboost_wserialization-gcc34-mt-1_35.dll for lack of <pbin.v2/libs/serialization/build/gcc-3.4.4/release/threading-multi>basic_text_wiprimitive.o... ...failed updating 12 targets... ...skipped 2 targets...

4 7

[Boost][Signals]Can a threadpool implementation be done using signals??
by sankar lingam 06 Apr '08

06 Apr '08

I had a look into boost Signals and I just want to know whether a threadpool implementation can be done using signals(as they are thread safe).? However will this be efficient in terms of performance when I do the threadpool implementation using a thread safe queue(guarded by mutexes) where in tasks are queued into the queue and worker threads in the threadpool pick out tasks and execute them.. Regards, Sankar

2 1

Does MPI use ASIO?
by Jeff 06 Apr '08

06 Apr '08

Hello everyone, Does the new MPI Library use ASIO for its network ops? Thanks, Jeff

13 19

[GIL] image_view::size_type and out of core images on 32 bits platforms
by N L 06 Apr '08

06 Apr '08

Hi everyone, I'm currently setting up an image processing pipeline for large (out of core) GIS images using GIL. I'm quite glad with the results I get right now, but I stumbled upon a problem with the default image_view size / iterator handling. Currently, image_view::size_type is defined as std::size_t, and image_view::end is implemented as begin()+(difference_type)size<http://stlab.adobe.com/gil/html/structboost_1_1gil_1_1size.html> (); As my images pixel count exceed the max value of std::size_t on my dev platform (win32), the image_view::end member function fails to give a valid iterator... As nearly every types defined in image_view are given by the templated locator type, I'm thinking that the size_type should not be an exception, and should be given by the locator type. I also tend to think that the 'image iterators' should not share the difference_type type with the '1D iterators' - but these are mainly performance considerations in my case, as my image iterators should be 64bits, and my 1d iterators can be 32 bits. For now, I changed my GIL working copy to patch image_view definition, as I did not see any way to work around the iterator problem. Did I miss anything ? Is there any user-level workaround I could use, or should the image_view class be modified ? Any thoughts would be welcome :) Thanks, Nicolas.

1 0

boost::asio::deadline_timer - Invalid Argument
by j.c. 06 Apr '08

06 Apr '08

Hi, I have a deadline_timer object that fires every second to perform network house keeping tasks. I am having what looks like a race condition or runaway IO when my timer fires and performs an async_connect. The following is my output: parent_connection::tick parent_connection::connect: trying next address:port 10.0.1.198:4315 Press any key to continue... CONNECTING ===> 10.0.1.198 CONNECT FAILED: Connection refused 00:00:01.001559 parent_connection_manager::disconnected parent_connection::connect: trying next address:port 10.0.1.198:4316 CONNECTING ===> 10.0.1.198 CONNECT FAILED: Invalid argument 00:00:01.002813 parent_connection_manager::disconnected parent_connection::connect: trying next address:port 10.0.1.198:4317 CONNECTING ===> 10.0.1.198 CONNECT FAILED: Invalid argument 00:00:01.000404 parent_connection_manager::disconnected parent_connection::connect: trying next address:port 10.0.1.198:4318 CONNECTING ===> 10.0.1.198 CONNECT FAILED: Invalid argument 00:00:01.000449 parent_connection_manager::disconnected parent_connection::connect: trying next address:port 10.0.1.198:4319 CONNECTING ===> 10.0.1.198 CONNECT FAILED: Invalid argument * Note the first call succeeds because it was not called from with a timer. So I guess the question is "How can I call async sockets on the same io_service trough a timer?" thanks in advance jc

1 1

[1.35.0][build] where o where have my little libs and dlls gone?
by Andrew Schweitzer 06 Apr '08

06 Apr '08

[bjam --toolset=msvc stage] doesn't seem to generate nearly as much as it used to, and my vc8 program now complains it can't find: libboost_program_options-vc80-mt-sgd-1_35.lib I can't find it either... I tried the latest bjam, 3.1.16. I tried --build_type=complete, I tried -a. I suspect I'm doing something obvious wrong... any suggestions? Thanks, Andy

3 3