March 2009 - Boost-users - lists.preview.boost.org

Pointer serialization and deserialization
by niranjan bangera 09 Mar '09

09 Mar '09

Hi all, Boost:1.38.0 compiler:gcc4.1.1 I am trying to serialize and deserialize a pointer to the class, but ended with the segmentation fault, Is that the null pointer serialization gives the segmentation fault?. I read in document that, library will maintain the Null pointer. if not how can i serialize? ,any docs or related refference is a;so acceptable. Thanks in advance.... one more thing: what -1 in archive(text_archive) indicates? Example ------------ #include <fstream> #include "boost/archive/text_iarchive.hpp" #include "boost/archive/text_oarchive.hpp" #include "boost/serialization/access.hpp" #include "boost/serialization/assume_abstract.hpp" class Dkpt { public: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int file_version) { (void) file_version; ar & data_; ar & b_i; ar & f_er; ar & pa_er; ar & ct_c; } private: uint8_t data_; bool b_i; bool f_er; bool pa_er; bool ct_c; }; ---- class RB : public RM { public: virtual void checkpoint_save(boost::archive::text_oarchive & oa) { oa & dr; } virtual void checkpoint_retrive(boost::archive::text_iarchive & ia) { ia & dr; } private: Dkpt* dr; ;} Thanks. Niranjan

2 1

[asio] communication with a remote apache tomcat service
by jmpulido 09 Mar '09

09 Mar '09

Hello all: I'm working on a client program which needs to communicate with a remote server using an http based protocol ,which running a service (java servlet under apache tomcat). I developed it using the example in http://www.boost.org/doc/libs/1_38_0/doc/html/boost_asio/example/http/clien… as reference. When testing on a local server with apache tomcat deploying the service, (http://localhost:8084) it worked fine, since I established the communication with the server with these statements: tcp::resolver resolver(io_service); tcp::resolver::query query("127.0.0.1", 8084); tcp::resolver::iterator endpoint_iterator = resolver.resolve (query); It worked all right with that connection string, but when we deployed the service in a commercial remote server with apache tomcat preinstalled, the connection string has becomed something like this: "http://urltomyserver:8080/ServiceName" The problem here seems to be that I only can use tcp::resolver::query when I have an specific ip or url, and a connection port both separated but, apparently, now I need to specify the port within in the connection string. I couldn't make this work, and tcp::resolver::iterator endpoint_iterator = resolver.resolve(query) always either can't resolve the query or it gets timeout. Is there anyway I could use a connection string with the port specified within, like "http://urltomyserver:8080/ServiceName" and make it work with tcp::resolver::query? Do I need to find an alternative? The second option would be very expensive in developing time terms, so I'm hoping you could help me to make this work. Thanks a lot :) José Manuel Pulido

3 2

Re: [Boost-users] [Boost.Test] valgrind complains about invalid reads
by Paolo Brandoli 09 Mar '09

09 Mar '09

Hello, The error appears also in 1.38.0 unless I change the test_unit destructor to virtual. There is no need for Valgrind to popup the error: a simple gdb execution (MINGW widh gcc4.3.3) will show the error when the test application terminates. Bets regards, Paolo Brandoli Christopher Jefferson wrote: > > > On 19 Dec 2008, at 07:23, Gennadiy Rozental wrote: > >> Peter Klotz wrote: >>> Gennadiy Rozental wrote: >>>> Peter Klotz <peter.klotz <at> aon.at> writes: >>>> >>>>> Why not just adding the virtual destructor to make valgrind happy? >>>> >>>> Did you try removing virtual from test_suite destructor instead? >>>> >>> Yes, just making ~test_suite() non virtual worsens things. >>> valgrind complains about twice as many "invalid read" errors. >> >> [...] >> >>> Making ~test_unit() virtual removes all errors. Then even a non >>> virtual ~test_suite() is no longer a problem. >>> So the final conclusion would be to remove virtual from >>> ~test_suite() and add it to the base class destructor ~test_unit(). >> >> Peter, >> >> I am not convinced there is a bug inside the Boost.Test code. As far >> as I can tell all I am doing is legitimate. Maybe we should report >> this to the valgrind developers instead? >> > > Can you produce a reduced test case, without any boost headers? I'd be > happy to have a look at it. > > Chris > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > -- View this message in context: http://www.nabble.com/-Boost.Test--valgrind-complains-about-invalid-reads-t… Sent from the Boost - Users mailing list archive at Nabble.com.

1 0

I Can't Compile The QuickStart Example (Part 2)
by Fagner Patricio 09 Mar '09

09 Mar '09

Hello Everybody again!!! Now I'm using the newest version of the boost library ( 1.38.0) I Download it from sourceforge, I have some problem, it compile but don't create the extension module called extending thie my output: *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ bjam toolset=gcc --verbose-teste test --debug-configuration* notice: found boost-build.jam at /home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/boost-build.jam notice: loading Boost.Build from /home/fagner/Downloads/boost_1_38_0/tools/build/v2 notice: Searching /etc /home/fagner /usr/share/boost-build /home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/../../../../tools/build/v2 /home/fagner/Downloads/boost_1_38_0/tools/build/v2/kernel /home/fagner/Downloads/boost_1_38_0/tools/build/v2/util /home/fagner/Downloads/boost_1_38_0/tools/build/v2/build /home/fagner/Downloads/boost_1_38_0/tools/build/v2/tools /home/fagner/Downloads/boost_1_38_0/tools/build/v2/contrib /home/fagner/Downloads/boost_1_38_0/tools/build/v2/. for site-config configuration file site-config.jam . notice: Loading site-config configuration file site-config.jam from /home/fagner/Downloads/boost_1_38_0/tools/build/v2/site-config.jam . notice: Searching /home/fagner /usr/share/boost-build /home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/../../../../tools/build/v2 /home/fagner/Downloads/boost_1_38_0/tools/build/v2/kernel /home/fagner/Downloads/boost_1_38_0/tools/build/v2/util /home/fagner/Downloads/boost_1_38_0/tools/build/v2/build /home/fagner/Downloads/boost_1_38_0/tools/build/v2/tools /home/fagner/Downloads/boost_1_38_0/tools/build/v2/contrib /home/fagner/Downloads/boost_1_38_0/tools/build/v2/. for user-config configuration file user-config.jam . notice: Loading user-config configuration file user-config.jam from /home/fagner/user-config.jam . notice: [python-cfg] Configuring python... notice: [python-cfg] user-specified version: "2.5" notice: [python-cfg] Checking interpreter command "python2.5"... notice: [python-cfg] running command '"python2.5" -c "from sys import *; print 'version=%d.%d\nplatform=%s\nprefix=%s\nexec_prefix=%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_prefix,executable)" 2>&1' notice: [python-cfg] ...requested configuration matched! notice: [python-cfg] Details of this Python configuration: notice: [python-cfg] interpreter command: "python2.5" notice: [python-cfg] include path: "/usr/include/python2.5" notice: [python-cfg] library path: "/usr/lib/python2.5/config" "/usr/lib" notice: [cmdline-cfg] Detected command-line request for gcc: toolset= gcc version= notice: [cmdline-cfg] toolset gcc not previously configured; attempting to auto-configure now notice: will use 'g++' for gcc, condition <toolset>gcc-4.2.4 notice: using gcc libraries :: <toolset>gcc-4.2.4 :: /usr/bin /usr/lib /usr/lib32 /usr/lib64 notice: using gcc archiver :: <toolset>gcc-4.2.4 :: /usr/bin/ar warning: toolset gcc initialization: can not find tool windres warning: initialized from notice: using rc compiler :: <toolset>gcc-4.2.4 :: /usr/bin/as notice: iostreams: using prebuilt zlib notice: iostreams: using prebuilt bzip2 ...patience... ...patience... ...found 1356 targets... ...updating 54 targets... common.mkdir bin common.mkdir bin/test_ext.test common.mkdir bin/test_ext.test/gcc-4.2.4 common.mkdir bin/test_ext.test/gcc-4.2.4/debug common.mkdir bin/gcc-4.2.4 common.mkdir bin/gcc-4.2.4/debug gcc.compile.c++ bin/gcc-4.2.4/debug/extending.o common.mkdir ../../../../bin.v2 common.mkdir ../../../../bin.v2/libs common.mkdir ../../../../bin.v2/libs/python common.mkdir ../../../../bin.v2/libs/python/build common.mkdir ../../../../bin.v2/libs/python/build/gcc-4.2.4 common.mkdir ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/numeric.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/list.o ../../../../libs/python/src/list.cpp: In static member function ‘static boost::python::detail::new_non_null_reference_t* boost::python::detail::list_base::call(const boost::python::api::object&)’: ../../../../libs/python/src/list.cpp:17: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/long.o ../../../../libs/python/src/long.cpp: In static member function ‘static boost::python::detail::new_non_null_reference_t* boost::python::detail::long_base::call(const boost::python::api::object&)’: ../../../../libs/python/src/long.cpp:13: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/long.cpp: In static member function ‘static boost::python::detail::new_non_null_reference_t* boost::python::detail::long_base::call(const boost::python::api::object&, const boost::python::api::object&)’: ../../../../libs/python/src/long.cpp:20: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/long.cpp: In constructor ‘boost::python::detail::long_base::long_base()’: ../../../../libs/python/src/long.cpp:26: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/dict.o ../../../../libs/python/src/dict.cpp: In static member function ‘static boost::python::detail::new_reference_t* boost::python::detail::dict_base::call(const boost::python::api::object&)’: ../../../../libs/python/src/dict.cpp:33: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/tuple.o ../../../../libs/python/src/tuple.cpp: In static member function ‘static boost::python::detail::new_reference_t* boost::python::detail::tuple_base::call(const boost::python::api::object&)’: ../../../../libs/python/src/tuple.cpp:13: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/str.o ../../../../libs/python/src/str.cpp: In static member function ‘static boost::python::detail::new_reference_t* boost::python::detail::str_base::call(const boost::python::api::object&)’: ../../../../libs/python/src/str.cpp:14: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In function ‘boost::python::ssize_t boost::python::detail::<unnamed>::str_size_as_py_ssize_t(size_t)’: ../../../../libs/python/src/str.cpp:29: aviso: comparison between signed and unsigned integer expressions ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::capitalize() const’: ../../../../libs/python/src/str.cpp:76: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:76: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::center(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:77: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:77: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::expandtabs() const’: ../../../../libs/python/src/str.cpp:132: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:132: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::expandtabs(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:133: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:133: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::join(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:239: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:239: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::ljust(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:240: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:240: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::lower() const’: ../../../../libs/python/src/str.cpp:241: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:241: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::lstrip() const’: ../../../../libs/python/src/str.cpp:242: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:242: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::replace(const boost::python::api::object&, const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:243: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:243: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::replace(const boost::python::api::object&, const boost::python::api::object&, const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:244: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:244: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::rjust(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:294: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:294: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::rstrip() const’: ../../../../libs/python/src/str.cpp:295: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:295: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::strip() const’: ../../../../libs/python/src/str.cpp:346: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:346: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::swapcase() const’: ../../../../libs/python/src/str.cpp:347: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:347: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::title() const’: ../../../../libs/python/src/str.cpp:348: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:348: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::translate(const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:349: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:349: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::translate(const boost::python::api::object&, const boost::python::api::object&) const’: ../../../../libs/python/src/str.cpp:350: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:350: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp: In member function ‘boost::python::str boost::python::detail::str_base::upper() const’: ../../../../libs/python/src/str.cpp:351: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/str.cpp:351: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/slice.o common.mkdir ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter/from_python.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter/registry.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter/type_id.o common.mkdir ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/enum.o ../../../../libs/python/src/object/enum.cpp:28: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/class.o ../../../../libs/python/src/object/class.cpp: In function ‘PyObject* boost::python::static_data_descr_get(PyObject*, PyObject*, PyObject*)’: ../../../../libs/python/src/object/class.cpp:77: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: In function ‘int boost::python::static_data_descr_set(PyObject*, PyObject*, PyObject*)’: ../../../../libs/python/src/object/class.cpp:98: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp:100: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: At global scope: ../../../../libs/python/src/object/class.cpp:362: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp:368: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: In function ‘boost::python::api::object boost::python::objects::<unnamed>::new_class(const char*, size_t, const boost::python::type_info*, const char*)’: ../../../../libs/python/src/object/class.cpp:510: aviso: comparison between signed and unsigned integer expressions ../../../../libs/python/src/object/class.cpp: In member function ‘void boost::python::objects::class_base::add_property(const char*, const boost::python::api::object&, const char*)’: ../../../../libs/python/src/object/class.cpp:575: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: In member function ‘void boost::python::objects::class_base::add_property(const char*, const boost::python::api::object&, const boost::python::api::object&, const char*)’: ../../../../libs/python/src/object/class.cpp:585: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: In member function ‘void boost::python::objects::class_base::add_static_property(const char*, const boost::python::api::object&)’: ../../../../libs/python/src/object/class.cpp:594: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/class.cpp: In member function ‘void boost::python::objects::class_base::add_static_property(const char*, const boost::python::api::object&, const boost::python::api::object&)’: ../../../../libs/python/src/object/class.cpp:603: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/function.o ../../../../libs/python/src/object/function.cpp: In member function ‘PyObject* boost::python::objects::function::call(PyObject*, PyObject*) const’: ../../../../libs/python/src/object/function.cpp:169: aviso: comparison between signed and unsigned integer expressions ../../../../libs/python/src/object/function.cpp: In member function ‘void boost::python::objects::function::argument_error(PyObject*, PyObject*) const’: ../../../../libs/python/src/object/function.cpp:300: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/function.cpp: At global scope: ../../../../libs/python/src/object/function.cpp:665: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/function.cpp:665: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/function.cpp:665: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/function.cpp:665: aviso: deprecated conversion from string constant to ‘char*’ ../../../../libs/python/src/object/function.cpp:665: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/inheritance.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/life_support.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/pickle_support.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/errors.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/module.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter/builtin_converters.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/converter/arg_to_python_base.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/iterator.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/stl_iterator.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object_protocol.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object_operators.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/wrapper.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/import.o gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/exec.o ../../../../libs/python/src/exec.cpp: In function ‘boost::python::api::object boost::python::exec_file(boost::python::str, boost::python::api::object, boost::python::api::object)’: ../../../../libs/python/src/exec.cpp:42: aviso: deprecated conversion from string constant to ‘char*’ gcc.compile.c++ ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/object/function_doc_signature.o gcc.link.dll ../../../../bin.v2/libs/python/build/gcc-4.2.4/debug/libboost_python-gcc42-d-1_38.so.1.38.0 gcc.link.dll bin/gcc-4.2.4/debug/extending.so capture-output bin/test_ext.test/gcc-4.2.4/debug/test_ext **passed** bin/test_ext.test/gcc-4.2.4/debug/test_ext.test common.mkdir bin/test_embed.test common.mkdir bin/test_embed.test/gcc-4.2.4 common.mkdir bin/test_embed.test/gcc-4.2.4/debug gcc.compile.c++ bin/gcc-4.2.4/debug/embedding.o embedding.cpp: In function ‘void exec_test()’: embedding.cpp:56: aviso: deprecated conversion from string constant to ‘char*’ gcc.link bin/gcc-4.2.4/debug/embedding testing.capture-output bin/test_embed.test/gcc-4.2.4/debug/test_embed.run **passed** bin/test_embed.test/gcc-4.2.4/debug/test_embed.test ...updated 54 targets... *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ * *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ ls* bin boost-build.jam embedding.cpp extending.cpp Jamroot script.py test_extending.py test_extending.pyc *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ * *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ python2.5 test_extending.py* Trying: from extending import * Expecting nothing ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 6, in test_extending Failed example: from extending import * Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[0]>", line 1, in <module> from extending import * ImportError: No module named extending Trying: hi = hello('California') Expecting nothing ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 7, in test_extending Failed example: hi = hello('California') Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[1]>", line 1, in <module> hi = hello('California') NameError: name 'hello' is not defined Trying: hi.greet() Expecting: 'Hello from California' ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 8, in test_extending Failed example: hi.greet() Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[2]>", line 1, in <module> hi.greet() NameError: name 'hi' is not defined Trying: invite(hi) Expecting: 'Hello from California! Please come soon!' ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 10, in test_extending Failed example: invite(hi) Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[3]>", line 1, in <module> invite(hi) NameError: name 'invite' is not defined Trying: hi.invite() Expecting: 'Hello from California! Please come soon!' ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 12, in test_extending Failed example: hi.invite() Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[4]>", line 1, in <module> hi.invite() NameError: name 'hi' is not defined Trying: class wordy(hello): def greet(self): return hello.greet(self) + ', where the weather is fine' Expecting nothing ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 15, in test_extending Failed example: class wordy(hello): def greet(self): return hello.greet(self) + ', where the weather is fine' Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[5]>", line 1, in <module> class wordy(hello): NameError: name 'hello' is not defined Trying: hi2 = wordy('Florida') Expecting nothing ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 19, in test_extending Failed example: hi2 = wordy('Florida') Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[6]>", line 1, in <module> hi2 = wordy('Florida') NameError: name 'wordy' is not defined Trying: hi2.greet() Expecting: 'Hello from Florida, where the weather is fine' ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 20, in test_extending Failed example: hi2.greet() Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[7]>", line 1, in <module> hi2.greet() NameError: name 'hi2' is not defined Trying: invite(hi2) Expecting: 'Hello from Florida! Please come soon!' ********************************************************************** File "/home/fagner/Downloads/boost_1_38_0/libs/python/example/quickstart/test_extending.py", line 22, in test_extending Failed example: invite(hi2) Exception raised: Traceback (most recent call last): File "/usr/lib/python2.5/doctest.py", line 1228, in __run compileflags, 1) in test.globs File "<doctest test_extending[8]>", line 1, in <module> invite(hi2) NameError: name 'invite' is not defined 1 items had no tests: test_extending.run ********************************************************************** 1 items had failures: 9 of 9 in test_extending 9 tests in 2 items. 0 passed and 9 failed. ***Test Failed*** 9 failures. *fagner@fagner-desktop:~/Downloads/boost_1_38_0/libs/python/example/quickstart$ * Now What is the error? Thanks for help. -- Fagner Patrício João Pessoa - PB Brasil

1 0

BOOST_PP_STRINGIZE for wchar_t?
by Hansi 09 Mar '09

09 Mar '09

Hello, is there any equivalent preprocessor macro available for BOOST_PP_STRINGIZE which gets a L"string"? Thanks Hansjörg

1 1

[asio] reopening of serial port fails - why?
by Markus Werle 09 Mar '09

09 Mar '09

Hi! The code below perfectly reads characters from the serial line for 6 seconds. The termination of the thread and a reopening of the connection then fails. What am i missing here? Markus ---snip--- // TestBoostAsio.cpp : Defines the entry point for the console application. // #include "stdafx.h" //int _tmain(int argc, _TCHAR* argv[]) //{ // return 0; //} /* minicom.cpp A simple demonstration minicom client with Boost asio Parameters: baud rate serial port (eg /dev/ttyS0 or COM1) To end the application, send Ctrl-C on standard input */ #include <deque> #include <iostream> #include <boost/bind.hpp> #include <boost/asio.hpp> #include <boost/asio/serial_port.hpp> #include <boost/thread.hpp> #include <boost/lexical_cast.hpp> #include <boost/date_time/posix_time/posix_time_types.hpp> #include <iostream> #ifdef POSIX #include <termios.h> #endif using namespace std; class minicom_client { public: minicom_client(boost::asio::io_service& io_service, unsigned int baud, const string& device) : active_(true), io_service_(io_service), serialPort(io_service, device) { if (!serialPort.is_open()) { cerr << "Failed to open serial port\n"; return; } boost::asio::serial_port_base::baud_rate baud_option(baud); serialPort.set_option(baud_option); // set the baud rate after the port has been opened read_start(); } void write(const char msg) // pass the write data to the do_write function via the io service in the other thread { io_service_.post(boost::bind(&minicom_client::do_write, this, msg)); } void close() // call the do_close function via the io service in the other thread { io_service_.post(boost::bind(&minicom_client::do_close, this, boost::system::error_code())); } bool active() // return true if the socket is still active { return active_; } private: static const int max_read_length = 512; // maximum amount of data to read in one operation void read_start(void) { // Start an asynchronous read and call read_complete when it completes or fails serialPort.async_read_some(boost::asio::buffer(read_msg_, max_read_length), boost::bind (&minicom_client::read_complete, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); } void read_complete(const boost::system::error_code& error, size_t bytes_transferred) { // the asynchronous read operation has now completed or failed and returned an error if (!error) { // read completed, so process the data cout.write(read_msg_, bytes_transferred); // echo to standard output read_start(); // start waiting for another asynchronous read again } else do_close(error); } void do_write(const char msg) { // callback to handle write call from outside this class bool write_in_progress = !write_msgs_.empty(); // is there anything currently being written? write_msgs_.push_back(msg); // store in write buffer if (!write_in_progress) // if nothing is currently being written, then start write_start(); } void write_start(void) { // Start an asynchronous write and call write_complete when it completes or fails boost::asio::async_write(serialPort, boost::asio::buffer(&write_msgs_.front(), 1), boost::bind (&minicom_client::write_complete, this, boost::asio::placeholders::error)); } void write_complete(const boost::system::error_code& error) { // the asynchronous read operation has now completed or failed and returned an error if (!error) { // write completed, so send next write data write_msgs_.pop_front(); // remove the completed data if (!write_msgs_.empty()) // if there is anthing left to be written write_start(); // then start sending the next item in the buffer } else do_close(error); } void do_close(const boost::system::error_code& error) { // something has gone wrong, so close the socket & make this object inactive if (error == boost::asio::error::operation_aborted) // if this call is the result of a timer cancel() return; // ignore it because the connection cancelled the timer if (error) cerr << "Error: " << error.message() << endl; // show the error message else cout << "Error: Connection did not succeed.\n"; cout << "Press Enter to exit\n"; serialPort.close(); active_ = false; } private: bool active_; // remains true while this object is still operating boost::asio::io_service& io_service_; // the main IO service that runs this connection boost::asio::serial_port serialPort; // the serial port this instance is connected to char read_msg_[max_read_length]; // data read from the socket deque<char> write_msgs_; // buffered write data }; int main(int argc, char* argv[]) { // on Unix POSIX based systems, turn off line buffering of input, so cin.get() returns after every keypress // On other systems, you'll need to look for an equivalent #ifdef POSIX termios stored_settings; tcgetattr(0, &stored_settings); termios new_settings = stored_settings; new_settings.c_lflag &= (~ICANON); new_settings.c_lflag &= (~ISIG); // don't automatically handle control- C tcsetattr(0, TCSANOW, &new_settings); #endif try { if (argc != 3) { cerr << "Usage: minicom <baud> <device>\n"; return 1; } boost::asio::io_service io_service; // define an instance of the main class of this program minicom_client c(io_service, boost::lexical_cast<unsigned int> (argv[1]), argv[2]); // run the IO service as a separate thread, so the main thread can block on standard input while (true) // PROBLEM: reentering this loop fails - why? { boost::thread t(boost::bind (&boost::asio::io_service::run, &io_service)); boost::asio::io_service io; boost::asio::deadline_timer timer(io, boost::posix_time::seconds(3)); timer.wait(); c.write('a'); boost::asio::deadline_timer timer2(io, boost::posix_time::seconds(3)); timer2.wait(); //while (c.active()) // check the internal state of the connection to make sure it's still running //{ // char ch; // cin.get(ch); // blocking wait for standard input // if (ch == 32) // ctrl-C to end program // break; // c.write(ch); //} c.close(); // close the minicom client connection t.join(); // wait for the IO service thread to close std::cout << "-------------------" << std::endl; } } catch (exception& e) { cerr << "Exception: " << e.what() << "\n"; } #ifdef POSIX // restore default buffering of standard input tcsetattr(0, TCSANOW, &stored_settings); #endif return 0; }

3 10

[Unordered] template find() request
by Kenneth Heafield 09 Mar '09

09 Mar '09

Hello Boost, Suppose I have a boost::unordered_set<std::string>. Now I want to find() a const char *, std::string, or even a string without zero termination (Google StringPiece). Converting these to std::string just to do a lookup is wasteful. Instead, I want to provide functors like: struct either_hash { size_t operator()(const std::string &str) const { return boost::hash_range(str.begin(), str.end()); } size_t operator()(const char *str) const { return boost::hash_range(str, str + std::strlen(str)); } }; This raises the question: what is either_hash::argument_type ? But it seems this is not used by boost::unordered_set . It should probably be std::string to match the underlying hash table. Would it make sense to change find() to template <class query_type> const_iterator find(const query_type& q) const ? For those familiar with Google StringPiece, one solution is using boost::unordered_set<StringPiece>, but then I have to keep the underlying strings somewhere outside the table. Further, a generalized find is useful in other cases, but this was the easiest to explain. Kenneth

3 4

Using program_options from a string?
by boostnewbie 09 Mar '09

09 Mar '09

Hello all. I am using the boost::program_options library for configuration files with great success. I'm wondering if it's possible to use the library using a string as a source, instead of a config file. I read the configuration file with code like this: if (vm.count("config")) { string f = vm["config"].as<string>() ; ifstream ifs(f.c_str()); store(parse_config_file(ifs, config_file_options), vm); po::notify(vm); } but what I'd also like to do is something along these lines, with a string as the original source instead of a file specified with my 'config' command line option: string str = "port = 3000 \n tmpdir = /tmp \n"; // something like this. this is what's in the config file. istringstream iss(str, istringstream::in); store(parse_config_file(iss, config_file_options), vm); po::notify(vm); These lines compile and execute without error but don't actually appear to update the 'vm'. Am I doing something wrong or is this not possible with the current incarnation of program_options? Thanks! -- View this message in context: http://www.nabble.com/Using-program_options-from-a-string--tp22405416p22405… Sent from the Boost - Users mailing list archive at Nabble.com.

2 1

lexical_cast<unsigned char>: Compiler error
by Hansi 09 Mar '09

09 Mar '09

Hello, I have a question. I need a lexical_cast for a BYTE. Now I get allways a compile error with VS2005 and VS2008: e.g. unsigned char test = 2; test = boost::lexical_cast<unsigned char>(L"2"); Error 2 error C2679: binary '>>' : no operator found which takes a right-hand operand of type 'unsigned char' (or there is no acceptable conversion) D:\boost\boost_1_38_0\boost\lexical_cast.hpp 771 What I do wrong? How I can solve this problem? Regards Hansjörg

3 8

Does boost have something like this, or does it need one?
by Roberto Gimenez 08 Mar '09

08 Mar '09

I need something like this: template <typename Type> struct Array { private: Type *data; int size; public: explicit Array(Type *data, int size) : data(data), size(size) { assert(size > 0); } Type &operator[](int index) const { return data[index]; } Type &at(int index) const { assert(index > 0 && index < size); return data[index]; } Type *getData() const { return data; } Type *begin() const { return data; } Type *end() const { return data + size; } int getSize() const { return size; } }; But I think boost doesn't have it. boost::array also takes an std::size_t template parameter but that doesn't work for what I want to do because I want to be able to pass a function something like this: void myFunction(const Array<int> &a) { ... } void main() { int myVec1[6] = { 1,2,3,4,5,6 }; int myVec2[2] = { 7,8 }; myFunction(Array<int>(myVec1, 6)); myFunction(Array<int>(myVec2, 2)); } I can't do this with boost::array and std::vector allocates and I don't want that too. Any help?

3 4