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RE: [Boost-Users] Re: thread & containers
by Jim.Hyslop 19 Jul '02

19 Jul '02

bill_kempf (williamkempf(a)hotmail.com) wrote: > --- In Boost-Users@y..., Herve Blanc <blanc@s...> wrote: > > If not again, why and how do you deal with the problem then? > > Use an external mutex to achieve the proper lock granularity. Herve, for further reading, I suggest Herb Sutter's books "Exceptional C++" and "More Exceptional C++". I think you'll find the section in MXC dealing with copy-on-write and thread-safety particularly enlightening. -- Jim

1 0

Using boost::function with VC6
by Edward Diener 19 Jul '02

19 Jul '02

Is there any way to use boost::function and member function pointers with VC6 . I realize it is deficient in partial specialization but I was still hoping to be able to use it. All my attempts to compile meet with failure although the compiler tests say that VC6 succeeds both with boost::function and boost::bind. If I try the bind1st.cpp example in libs\function\example directory I get the error: error C2784: 'class std::mem_fun_t<_R,_Ty> __cdecl std::mem_fun(_R (__thiscall _Ty::*)(void))' : could not deduce template argument for '<Unknown>' from 'int (__thiscall X::*)(int)' If I try some code of my own and use boost::bind instead, I get an error: error C2780: 'class boost::_bi::bind_t<R,class boost::_mfi::cmf8<R,T,B1,B2,B3,B4,B5,B6,B7,B8>,class boost::_bi::list9<class boost::_bi::value<R>,class boost::_bi ::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R>,class boost::_bi::value<R> > > __cdecl boost::bind(R (__thiscall T::*)(B1,B2 ,B3,B4,B5,B6,B7,B8) const,A1,A2,A3,A4,A5,A6,A7,A8,A9)' : expects 10 arguments - 2 provided My own code is: #include "stdafx.h" #include <boost\function.hpp> #include <boost\bind.hpp> class MyClass { public: int MyMember(int,int,int); }; int MyClass::MyMember(int x,int y,int z) { int a = x + y + z; } int main(int argc, char* argv[]) { MyClass mcl; boost::function3<int,int,int,int> bf; bf = boost::bind(&MyClass::MyMember,&mcl); bf(2,3,4); return 0; }

3 13

boost with gcc 2.91 ??
by wugui 19 Jul '02

19 Jul '02

gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) Is that version too old? some error: gcc-C++-action libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex. o In file included from /root/boost/boost_1_28_0/boost/regex.hpp:44, from libs/regex/build/../src/cregex.cpp:27: /root/boost/boost_1_28_0/boost/regex_fwd.hpp:53: parse error before `<' /root/boost/boost_1_28_0/boost/regex_fwd.hpp:56: parse error before `>' In file included from /root/boost/boost_1_28_0/boost/regex/detail/regex_stack.hpp:32, from /root/boost/boost_1_28_0/boost/regex.hpp:45, from libs/regex/build/../src/cregex.cpp:27: /root/boost/boost_1_28_0/boost/regex/detail/regex_raw_buffer.hpp:32: confused by earlier errors, bailing out g++ -c -Wall -ftemplate-depth-100 -DBOOST_REGEX_NO_LIB=1 -DBOOST_REGEX_STA TIC_LINK=1 -g -O0 -fno-inline -I"libs/regex/build" -I"/root/boost/boost_1 _28_0" -o "libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex .o" "libs/regex/build/../src/cregex.cpp" ...failed gcc-C++-action libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex. o...

2 1

Compiling problem
by baruche2000 19 Jul '02

19 Jul '02

Hi. Compiling "test_pool_alloc.cpp" on Windows2000(MS Visual C++ 6.0)I got a number of warnings and errors: Help me please to resolve these problems ( I want to use Boost in our Windows & VxWorks project) Regards. Baruch. Compiling... test_pool_alloc.cpp c:\program files\microsoft visual studio\vc98\include\list(386) : error C2039: '_Charalloc' : is not a member of 'fast_pool_allocator<struct tester,struct boost::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32>' c:\program files\microsoft visual studio\vc98\include\list (386) : while compiling class-template member function 'struct std::list<struct tester,class boost::fast_pool_allocator<struct tester,struct boost::default_user_allocator_new_delete,c lass boost::details::pool::null_mutex,32> >::_Node *__thiscall std::list<struct tester,class boost::fast_pool_allocator<struct tester,struct boost::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32> >::_Buynode(struct std:: list<struct tester,class boost::fast_pool_allocator<struct tester,struct boost::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32> >::_Node *,struct std::list<struct tester,class boost::fast_pool_allocator<struct tester,str uct boost::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32> >::_Node *)' Error executing cl.exe. test_pool_alloc.obj - 1 error(s), 0 warning(s) ///////////////////////////////////////////////////////////// Compiling... - Withot list and dequeue testing test_pool_alloc.cpp c:\boost\boost_1_28_0\boost\pool\pool.hpp(267) : warning C4800: 'unsigned int' : forcing value to bool 'true' or 'false' (performance warning) c:\boost\boost_1_28_0\boost\pool\pool.hpp(263) : while compiling class-template member function 'void __thiscall boost::pool<struct boost::default_user_allocator_new_delete>::ordered_free(void *const ,const unsigned int)' c:\boost\boost_1_28_0\boost\pool\pool.hpp(492) : warning C4800: 'unsigned int' : forcing value to bool 'true' or 'false' (performance warning) c:\boost\boost_1_28_0\boost\pool\simple_segregated_storage.hpp (70) : while compiling class-template member function 'void *__thiscall boost::pool<struct boost::default_user_allocator_new_delete>::ordered_malloc(unsigned int)' c:\boost\boost_1_28_0\boost\pool\simple_segregated_storage.hpp(70) : error C2248: 'object_creator' : cannot access private struct declared in class 'boost::details::pool::singleton_default<struct boost::singleton_pool<struct boost::pool_allocator_ta g,1,struct boost::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32>::pool_type>' c:\boost\boost_1_28_0\boost\pool\detail\singleton.hpp(63) : see declaration of 'object_creator' c:\boost\boost_1_28_0\boost\pool\simple_segregated_storage.hpp (70) : while compiling class-template static data member 'struct boost::details::pool::singleton_default<struct boost::singleton_pool<struct boost::pool_allocator_tag,1,struct boo st::default_user_allocator_new_delete,class boost::details::pool::null_mutex,32>::pool_type>::object_creator boost::details::pool::singleton_default<boost::singleton_pool<boost::p ool_allocator_tag,1,boost::default_user_allocator_new_delete,boost::de tails::pool::null_mutex,32>::pool_type>::create_object' Error executing cl.exe. test_pool_alloc.obj - 1 error(s), 2 warning(s) /////////////////////////////////////////////////////////////

2 1

Directories in VC++?
by Dan Watt 19 Jul '02

19 Jul '02

What directories do I need to add to Visual C++ 6 for the library/source/headers for boost? The problem is that I can compile, but I am getting no intellisense, and its a slight nusance

2 1

XML?
by dick.bridges＠tais.com 18 Jul '02

18 Jul '02

Anyone know of any plans to push XML handling down into C++ libraries? Maybe call it the S[tandard] X[ml] L[ibrary]? ;)

1 0

Dev-C++
by Ihsan Ali Al Darhi 18 Jul '02

18 Jul '02

Hi... Trying to use Dev-C++ with Boost. I created a new project and included all the Boost header files in the settings of the compiler. I added a new module and wrote a main() {} function after included some header files of Boost. Whe I tried to compile the program it produces an error message that the header files don't exist!!!! Can u guide me to use Boost with this compiler? Mohammed

4 3

Borland 5.5.1, STLPort, and regex
by adhalejr 18 Jul '02

18 Jul '02

A few questions about this configuration... I'm trying to compile Boost 1.28.0 using Borland C++ 5.5.1 with the STLPort 4.5.3 STL. I get the following errors on files which include the regex/config.hpp file: libs\regex\build\../src\c_regex_traits.cpp: Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 538: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 554: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 578: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 579: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 580: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 581: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 582: Identifier expected Error E2272 D:\Tools\Boost\boost_1_28_0\boost/regex/config.hpp 583: Identifier expected I believe this all has to do with the various C standard library symbols (e.g. fseek) not being "known" when placed in the using ::<symbol> construct. I've wandered through the various config.hpp files, the stuff for platform, compiler, and stdlib, etc. It would seem that the right set of stuff is being picked but there's some unexpected behavior being encountered when #include-ing standard headers from STLPort via Borland. Any ideas on correcting this? Other, somewhat related, questions: If I build w/o STLPort, things seem OK. The regex static libraries are placed in a "runtime-link-dynamic" directory. Threads, on the other hand, has that directory as well as a "runtime-link-static" directory variation. Does the directory name imply which version of the compiler's RTL is required when linking w/ that version of the Boost library? And is there a reason that regex didn't have a "runtime-link-static" directory and associated static library created? I want to statically link the RTL and boost w/ my app. Finally, how do I go about creating just a single boost library (so I can try building threads w/ STLPort w/o encountering the regex errors). Many thanks, Donnie

2 6

Where's MPL
by Ihsan Ali Al Darhi 17 Jul '02

17 Jul '02

Hi... I downloaded Boost 1.28 but there's no MPL. Why? Mo

2 1

Compiling a threads DLL using VC6
by sdussin 17 Jul '02

17 Jul '02

I just downloaded Boost and am trying to do some development using it. Our product will be developed and fielded on both Win2K and Solaris. So far I've been using Boost solely on VC6, and I have a question regarding building the threads library. I've gotten the build to run correctly, but it doesn't seem to build a DLL version of the library. I looked in the both the runtime-link-static and runtime-link-dynamic dirs, and both contain only a .LIB version of the library. Is there something I'm doing wrong here? Or am I misunderstanding what should be generated? Any clarification or pointers would be greatly welcomed. Thanx, Steve Dussinger

2 1

problems w/ msvc6-sp5 and boost::python
by srivatsan raghavan 17 Jul '02

17 Jul '02

i'm having problems w/ vc6 and python.. i'm trying to compile examples\getting_started2.cpp and it compiles , but i get like 23 warnings, and when i throw the getting_started2.dll into the python syspath (specifically in C:\Python22\Lib\site-packages\ ) i get errors form the example\test_getting_started2.py what am i doing wrong? :/ here are the warnings : Compiling... getting_started2.cpp c:\libraries\include\boost\python\detail\types.hpp(37) : warning C4275: non dll-interface struct 'boost::python::detail::base_object<struct _typeobject>' used as base for dll-interface class 'boost::python::detail::type_object_base' c:\libraries\include\boost\python\detail\types.hpp(36) : see declaration of 'type_object_base' c:\libraries\include\boost\python\detail\types.hpp(389) : warning C4251: 'm_storage' : class 'std::vector<struct std::pair<char *,unsigned int>,class std::allocator<struct std::pair<char *,unsigned int> > >' needs to have dll-interface to be used by clients of class 'boost::python::detail::shared_pod_manager' c:\libraries\include\boost\python\objects.hpp(32) : warning C4251: 'm_p' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of class 'boost::python::object' c:\libraries\include\boost\python\objects.hpp(270) : warning C4251: 'm_dict' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of struct 'boost::python::dictionary_proxy' c:\libraries\include\boost\python\objects.hpp(271) : warning C4251: 'm_key' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of struct 'boost::python::dictionary_proxy' c:\libraries\include\boost\python\objects.hpp(336) : warning C4251: 'm_list' : class 'boost::python::list' needs to have dll-interface to be used by clients of struct 'boost::python::list_proxy' c:\libraries\include\boost\python\objects.hpp(146) : see declaration of 'list' c:\libraries\include\boost\python\objects.hpp(351) : warning C4251: 'm_list' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of struct 'boost::python::list_slice_proxy' c:\libraries\include\boost\python\classes.hpp(25) : warning C4275: non dll-interface struct 'boost::python::detail::base_object<struct _object>' used as base for dll-interface class 'boost::python::instance' c:\libraries\include\boost\python\classes.hpp(24) : see declaration of 'instance' c:\libraries\include\boost\python\classes.hpp(102) : warning C4251: 'm_name_space' : class 'boost::python::dictionary' needs to have dll-interface to be used by clients of class 'boost::python::instance' c:\libraries\include\boost\python\objects.hpp(274) : see declaration of 'dictionary' c:\libraries\include\boost\python\classes.hpp(138) : warning C4251: 'm_bases' : class 'boost::python::tuple' needs to have dll-interface to be used by clients of class 'boost::python::detail::class_base' c:\libraries\include\boost\python\objects.hpp(56) : see declaration of 'tuple' c:\libraries\include\boost\python\classes.hpp(139) : warning C4251: 'm_name_space' : class 'boost::python::dictionary' needs to have dll-interface to be used by clients of class 'boost::python::detail::class_base' c:\libraries\include\boost\python\objects.hpp(274) : see declaration of 'dictionary' c:\libraries\include\boost\python\detail\functions.hpp(33) : warning C4275: non dll-interface struct 'boost::python::detail::base_object<struct _object>' used as base for dll-interface class 'boost::python::detail::function' c:\libraries\include\boost\python\detail\functions.hpp(32) : see declaration of 'function' c:\libraries\include\boost\python\detail\functions.hpp(49) : warning C4251: 'm_overloads' : class 'boost::python::reference<class boost::python::detail::function>' needs to have dll-interface to be used by clients of class 'boost::python::detail::fu nction' c:\libraries\include\boost\python\detail\functions.hpp(205) : warning C4275: non dll-interface struct 'boost::python::detail::base_object<struct _object>' used as base for dll-interface class 'boost::python::detail::bound_function' c:\libraries\include\boost\python\detail\functions.hpp(204) : see declaration of 'bound_function' c:\libraries\include\boost\python\detail\functions.hpp(217) : warning C4251: 'm_target' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of class 'boost::python::detail::bound_function' c:\libraries\include\boost\python\detail\functions.hpp(218) : warning C4251: 'm_unbound_function' : class 'boost::python::reference<struct _object>' needs to have dll-interface to be used by clients of class 'boost::python::detail::bound_function' c:\libraries\include\boost\python\detail\extension_class.hpp(68) : warning C4251: 'm_wrapped_objects' : class 'std::vector<class boost::python::detail::instance_holder_base *,class std::allocator<class boost::python::detail::instance_holder_base *> >' needs to have dll-interface to be used by clients of class 'boost::python::detail::extension_instance' c:\libraries\include\boost\python\detail\extension_class.hpp(73) : warning C4231: nonstandard extension used : 'extern' before template explicit instantiation c:\libraries\include\boost\python\detail\extension_class.hpp(74) : warning C4231: nonstandard extension used : 'extern' before template explicit instantiation c:\libraries\include\boost\python\classes.hpp(234) : warning C4275: non dll-interface class 'boost::python::detail::reprable<class boost::python::detail::callable<class boost::python::detail::getattrable<class boost::python::detail::setattrable<clas s boost::python::detail::type_object<class boost::python::class_t<class boost::python::detail::extension_instance> > > > > >' used as base for dll-interface class 'boost::python::meta_class<class boost::python::detail::extension_instance>' c:\libraries\include\boost\python\detail\extension_class.hpp(74) : see reference to class template instantiation 'boost::python::meta_class<class boost::python::detail::extension_instance>' being compiled c:\libraries\include\boost\python\classes.hpp(236) : warning C4275: non dll-interface class 'boost::noncopyable' used as base for dll-interface class 'boost::python::meta_class<class boost::python::detail::extension_instance>' c:\libraries\include\boost\utility.hpp(50) : see declaration of 'noncopyable' c:\libraries\include\boost\python\detail\extension_class.hpp(74) : see reference to class template instantiation 'boost::python::meta_class<class boost::python::detail::extension_instance>' being compiled c:\libraries\include\boost\python\detail\extension_class.hpp(937) : warning C4541: 'dynamic_cast' used on polymorphic type 'class boost::python::detail::instance_holder_base' with /GR-; unpredictable behavior may result c:\program files\microsoft visual studio 6.0\vc98\include\xmemory(59) : while compiling class-template member function 'void *__thiscall boost::python::detail::extension_class<class `anonymous namespace'::hello,class boost::python::detail::h eld_instance<class `anonymous namespace'::hello> >::extract_object_from_holder(class boost::python::detail::instance_holder_base *) const' c:\libraries\include\boost\python\detail\extension_class.hpp(248) : warning C4541: 'dynamic_cast' used on polymorphic type 'class boost::python::detail::instance_holder_base' with /GR-; unpredictable behavior may result c:\libraries\include\boost\python\detail\extension_class.hpp(241) : while compiling class-template member function 'class `anonymous-namespace'::hello *__cdecl boost::python::python_extension_class_converters<class `anonymous namespace'::hel lo,class boost::python::detail::held_instance<class `anonymous namespace'::hello> >::non_null_from_python(struct _object *,struct boost::python::type<class `anonymous namespace'::hello *>)' Linking... Creating library Debug/getting_started2.lib and object Debug/getting_started2.exp getting_started2.dll - 0 error(s), 23 warning(s) then when i run test_getting_started2.py , these are the errors i get : C:\Downloads\boost_1_28_0\libs\python\example>test_getting_started2.py ***************************************************************** Failure in example: hi.greet() from line #2 of test_getting_started2 Exception raised: Traceback (most recent call last): File "C:\Python22\lib\doctest.py", line 430, in _run_examples_inner compileflags, 1) in globs File "<string>", line 1, in ? RuntimeError: Access violation - no RTTI data! ***************************************************************** Failure in example: invite(hi) from line #4 of test_getting_started2 Exception raised: Traceback (most recent call last): File "C:\Python22\lib\doctest.py", line 430, in _run_examples_inner compileflags, 1) in globs File "<string>", line 1, in ? RuntimeError: Access violation - no RTTI data! ***************************************************************** Failure in example: hi.invite() from line #6 of test_getting_started2 Exception raised: Traceback (most recent call last): File "C:\Python22\lib\doctest.py", line 430, in _run_examples_inner compileflags, 1) in globs File "<string>", line 1, in ? RuntimeError: Access violation - no RTTI data! ***************************************************************** Failure in example: hi2.greet() from line #14 of test_getting_started2 Exception raised: Traceback (most recent call last): File "C:\Python22\lib\doctest.py", line 430, in _run_examples_inner compileflags, 1) in globs File "<string>", line 1, in ? File "<string>", line 3, in greet RuntimeError: Access violation - no RTTI data! ***************************************************************** Failure in example: invite(hi2) from line #16 of test_getting_started2 Exception raised: Traceback (most recent call last): File "C:\Python22\lib\doctest.py", line 430, in _run_examples_inner compileflags, 1) in globs File "<string>", line 1, in ? RuntimeError: Access violation - no RTTI data! C:\Downloads\boost_1_28_0\libs\python\example> --- as you can see, i'm using boost 1.28.0 can anyone tell me what i'm doing wrong? this has been driving me *INSANE* .. :/ __________________________________________________ Do You Yahoo!? Yahoo! Autos - Get free new car price quotes http://autos.yahoo.com

2 2

signals
by Angus Leeming 17 Jul '02

17 Jul '02

I currently have a class that exposes a signal but otherwise hides its internals behind a firewall using the Pimpl idiom: class Foo { public: boost::signal0<void> statusChanged; private: class Impl; boost::scoped_ptr<Impl> const pimpl_; }; Since all I want to do publicly is allow things to connect to this signal: Foo foo; foo.statusChanged.connect(boost::bind(&X::bar, this)); it'd be nice to hide the signal too and replace it with a connect() method: class Foo { public: boost::signals::connection connect(slot_type const &) const; private: class Impl; boost::scoped_ptr<Impl> const pimpl_; }; My problem is defining slot_type. If I have boost::signals::connection Foo::connect(boost::slot<void> const & slot) const { return statusChanged.connect(slot); } I get compiler warnings something like this (below). As you can see, I'm having trouble decyphering the magic that is the boost header files! can someone please help! Kind regards, Angus cxx: Error: ../../../devel/boost/boost/signals/slot.hpp, line 122: #250 reference to void is not allowed detected during instantiation of class "boost::slot<SlotFunction> [with SlotFunction=void]" at line 171 of "../../../devel/src/graphics/GraphicsCacheItem.C" const SlotFunction& get_slot_function() const { return slot_function; } ----------------------^ cxx: Error: ../../../devel/boost/boost/signals/slot.hpp, line 128: #70 incomplete type is not allowed detected during instantiation of class "boost::slot<SlotFunction> [with SlotFunction=void]" at line 171 of "../../../devel/src/graphics/GraphicsCacheItem.C" SlotFunction slot_function; -----------------^ cxx: Error: ../../../devel/src/graphics/GraphicsCacheItem.C, line 171: #304 no instance of overloaded function "boost::signal0<R, Combiner, Group, GroupCompare, SlotFunction>::connect [with R=void, Combiner=boost::last_value<void>, Group=int, GroupCompare=std::less<int>, SlotFunction=boost::function0<void, boost::empty_function_policy, boost::empty_function_mixin, std::allocator<boost::function_base>>]" matches the argument list argument types are: (const boost::slot<void>) return statusChanged.connect(slot); -----------------------------^

2 2

Problem with gcc-Option "-pedantic" on SPARC Solaris 2.7 w. gcc 2.95.2
by aegp2002 17 Jul '02

17 Jul '02

Hi there, I'm a new user of the boost library. I want to use the Boost Graph Library (BGL). For this I downloaded the complete boost package from www.boost.org (boost_all.tar.gz). It is Boost v. 1.28.0. I uncompressed and unpacked the stuff into a directory. Then I created a simple example program to play around with BGL. I ran into trouble when I tried to compile the code. I'm using gcc 2.95.2 on SPARC Sun Solaris 2.7. With the "-pedantic" option given I get this failure: In file included from ../../../boost_1_28_0/boost/detail/numeric_traits.hpp:69, from ../../../boost_1_28_0/boost/counting_iterator.hpp:57, from ../../../boost_1_28_0/boost/pending/integer_range.hpp:15, from ../../../boost_1_28_0/boost/graph/detail/adjacency_list.hpp:34, from ../../../boost_1_28_0/boost/graph/adjacency_list.hpp:293, from nd_patch.C:21: ../../../boost_1_28_0/boost/cstdint.hpp:202: too many `l's in integer constant ../../../boost_1_28_0/boost/cstdint.hpp:205: #error defaults not correct; you must hand modify boost/cstdint.hpp *** Error code 1 Without the -pedantic option everything works fine. As far as I understand I cannot use the option anymore for code that references BGL #includes. Is this a known problem and is there -- maybe -- a workaround? I'd like to use -pedantic because it helps me write standard conformant code. Regards, Adalbert

2 2

Re: [Boost-Users] Boost Sockets
by Beman Dawes 17 Jul '02

17 Jul '02

At 07:08 PM 7/15/2002, James Zappia wrote: >Is there a boost library for network sockets on the radar? Faintly. Several developers have done a certain amount of work, but I don't think the effort is very active at the moment. > Most of the C++ >socket libraries I've seen aren't very appealing. That's also my impression. > Just curious if boost >will be offering something. It is definitely on the wish list. --Beman

5 9

Compiling thread library w/ Borland 5.5.1 and STLPort 4.5.3
by adhalejr 17 Jul '02

17 Jul '02

I'm trying to compile the thread library using the Borland command line tools, version 5.5.1, and the STLPort version of STL, version 4.5.3. When the source files #include Borland's <process.h> file, the following errors occur: Error E2337 c:\borland\bcc55\include\process.h 74: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 87: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 99: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 180: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 191: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 192: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 201: Only one of a set of overloaded functions can be "C" Error E2337 c:\borland\bcc55\include\process.h 218: Only one of a set of overloaded functions can be "C" A number of the functions prototyped in there, though not all of them, are making the compiler choke. FWIW, the build did work if I just used the stock Borland STL. Any ideas on correcting this? Thanks, Donnie

1 1

boost.python and gcc 3.1
by Nikolay Mladenov 17 Jul '02

17 Jul '02

Hi, I am trying to use boost.python 1.28 with gcc 3.1 on cygwin, and I am getting an error that puzzles me: $ gcc -c -I/usr/src/boost_1_28_0 -I"/e/Program Files/Python/include" -I/home/nickm/sources/include -I/e/ug150/ugopen -mno-cygwin -shared /home/nickm/sources/src/ugx/py/styler_py.cpp -o styler_py.o /usr/src/boost_1_28_0/boost/python/cross_module.hpp: In instantiation of `boost::python::python_import_extension_class_converters<std::vector<tag_t, std::allocator<tag_t> > > boost::python::py_extension_class_converters(boost::python::type<std::vector<tag_t, std::allocator<tag_t> > >, bool)': /usr/src/boost_1_28_0/boost/python/detail/extension_class.hpp:388: instantiated from `PyObject* boost::python::to_python(const T&) [with T = std::vector<tag_t, std::allocator<tag_t> >]' /usr/src/boost_1_28_0/boost/python/callback.hpp:70: instantiated from `static R boost::python::callback<R>::call_method(PyObject*, const char*, const A1&, const A2&) [with A1 = std::vector<tag_t, std::allocator<tag_t> >, A2 = saUIStyler::DialogSelection, R = saUIStyler::CallbackResult]' /home/nickm/sources/src/ugx/py/styler_py.cpp:225: instantiated from here /usr/src/boost_1_28_0/boost/python/cross_module.hpp:71: default argument given for parameter 2 of ` boost::python::python_import_extension_class_converters<std::vector<tag_t, std::allocator<tag_t> > > boost::python::py_extension_class_converters(boost::python::type<std::vector<tag_t, std::allocator<tag_t> > >, bool = 0)' /usr/src/boost_1_28_0/boost/python/cross_module.hpp:71: after previous specification in ` boost::python::python_import_extension_class_converters<std::vector<tag_t, std::allocator<tag_t> > > boost::python::py_extension_class_converters(boost::python::type<std::vector<tag_t, std::allocator<tag_t> > >, bool = 0)' /usr/src/boost_1_28_0/boost/python/cross_module.hpp: In instantiation of `boost::python::python_import_extension_class_converters<DVect3D> boost::python::py_extension_class_converters(boost::python::type<DVect3D>, bool)': /usr/src/boost_1_28_0/boost/python/detail/extension_class.hpp:388: instantiated from `PyObject* boost::python::to_python(const T&) [with T = Vector3D<double>]' /usr/src/boost_1_28_0/boost/python/callback.hpp:125: instantiated from `static R boost::python::callback<R>::call_method(PyObject*, const char*, const A1&, const A2&, const A3&, const A4&) [with A1 = tag_t, A2 = Vector3D<double>, A3 = Vector3D<double>, A4 = saUIStyler::DialogSelection, R = saUIStyler::CallbackResult]' /home/nickm/sources/src/ugx/py/styler_py.cpp:265: instantiated from here /usr/src/boost_1_28_0/boost/python/cross_module.hpp:71: default argument given for parameter 2 of ` boost::python::python_import_extension_class_converters<DVect3D> boost::python::py_extension_class_converters(boost::python::type<DVect3D>, bool = 0)' /usr/src/boost_1_28_0/boost/python/cross_module.hpp:71: after previous specification in ` boost::python::python_import_extension_class_converters<DVect3D> boost::python::py_extension_class_converters(boost::python::type<DVect3D>, bool = 0)' Can somebody help me understand what the problem is? Thanks in advance Nikolay

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boost::python and operator overloading
by srivatsan raghavan 16 Jul '02

16 Jul '02

hi all, i'm using boost::python to add acces to a C++ based network logging system from python and i'm running into a few snags wrt operator overloading .. specifically.. some of the classes support some operator signatures that i'm not sure how to export to python .. the python docs & boost::python discuss overloading operators, but only in the context of numeric extensions, and there is some things about a __coerce__ method .. but i'm not clear on how they should be used .. for example supports a stream-like interface: class LogStream { ILogStream& operator<<(long double ld); ILogStream& operator<<(std::string s); //for stream manipulators ILogStream& operator<<( ILogStream& (*pf)(ILogStream&)); } ; these are clearly not numeric operator overloads is there any way i can map these operators to their python equivalents ? --vat __________________________________________________ Do You Yahoo!? Yahoo! Autos - Get free new car price quotes http://autos.yahoo.com

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RE: [Boost-Users] Re: Boost Sockets
by Jim.Hyslop 16 Jul '02

16 Jul '02

Phil Nash [mailto:phil.nash.lists@squareseven.com] wrote: > Have I made my position clear :-) No, I don't think so, Phil - please tell us what you _really_ think ;-) -- Jim

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noncopyable
by Volker Boerchers 16 Jul '02

16 Jul '02

Hi, to use boost::noncopyable I have to include boost/utility.hpp, i.e. _all_ utilities consisting of several template classes and functions. I expected to have a separate header in favour of compilation speed (as for boost/utility/base_from_member.hpp or boost/checked_delete.hpp which are included from utility.hpp). OK, at the end the preprocessed output is only ~100 lines (empty lines stripped) instead of 10 but what speaks against a separate header? Regards, Volker -- Volker Boerchers <vboerchers(a)tecon.de> System Engineer TECON Systems AG, Perlengraben 2, 50676 Köln, http://www.tecon.de Tel: +49-221-92007-55, Fax: +49-221-92007-77

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Boost Sockets
by James Zappia 15 Jul '02

15 Jul '02

Hi, Is there a boost library for network sockets on the radar? Most of the C++ socket libraries I've seen aren't very appealing. Just curious if boost will be offering something. Regards, James

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Boost performance
by Barnali 15 Jul '02

15 Jul '02

Is their any way to evaluate the performance of boost library using any standard benchmark (bench++ ?)? Regards Barns

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problems w/ boost::regex
by srivatsan raghavan 12 Jul '02

12 Jul '02

i'm having some problems in trying to use boost::regex with msvc6 , sp 5 (using boost 1.28.0) jam generates some *.lib's & some *.dll's but when i try to compile code that trys to use regex (such as the examples ) , i get linker errors of the form ==> LINK : fatal error LNK1104: cannot open file "boost_regex_vc6_mssd.lib" Error executing link.exe. at first i was confused about this as i could not find any files with such a name .. after some grepping i found some explanations on the lib files that the regex headers use to figure out what lib to include (in boost\regex\detail\regex_library_include.hpp which is rather a neat way of doing things, but jam doesn't appear to follow that methodology .. so i'm stuck since the naming convenctions don't match, and i'm not sure what files jam is generating (in fact i'm not even sure that jam is generating the static runtime, static link versions of boost that the above error is requesting me to find .. --vat __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com

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RE: [Boost-Users] weak_ptr... no * or ->?
by Mark Storer 11 Jul '02

11 Jul '02

So the only purpose of a weak_ptr is to be able to grab a shared_ptr from it (and to avoid circular references, of course)? --Mark Storer Software Engineer Cardiff Software #include <disclaimer> typedef std::disclaimer<Cardiff> Discard;

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weak_ptr... no * or ->?
by Mark Storer 11 Jul '02

11 Jul '02

Is there a reason weak_ptr doesn't have overloaded * and -> operators? --Mark Storer Software Engineer Cardiff Software #include <disclaimer> typedef std::disclaimer<Cardiff> Discard;

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RE: [Boost-Users] Re: most recent thread_pool implementation?
by Tom Matelich 11 Jul '02

11 Jul '02

Also, files that are created in a branch and do not exist on the mainline yet live in the Attic. > -----Original Message----- > From: bill_kempf [mailto:williamkempf@hotmail.com] > Sent: Thursday, July 11, 2002 11:02 AM > To: Boost-Users(a)yahoogroups.com > Subject: [Boost-Users] Re: most recent thread_pool implementation? > > > --- In Boost-Users@y..., Niall Kelly <ngktab@y...> wrote: > > > > I've recently started using Boost and am working with 1.28.0 > (modified to include the latest Boost.Signals from the CVS > repository). > > > > I just obtained David Moore's thread_pool implementation from > http://groups.yahoo.com/group/boost/files/thread_pool.zip and tweaked > it slightly in order to build it with gcc 2.95.3 (no <limits>). I > since noticed some more recent thread_pool source on CVS under > boost/boost/libs/thread/src/Attic (bill_kempf). > > The attic is used to store files that have been removed (cvs > remove). Not sure exactly what you're seeing in the attic, but it's > not really important. You shouldn't ever have to deal directly with > the attic. > > > What is the purpose of the Attic subdirs? - unofficial work-in- > progress type stuff or would I be better off using these versions of > thread_pool? > > The latest thread_pool stuff can be found in CVS under a branch named > thread_development. This is stuff that's under development, however, > so use at your own risk. > > > Also, is thread_pool likely to be included in the next official > Boost release? Any idea when this might be? Finally, is a > boost::xtime replacement likely to appear in the next release? > > Yes, thread_pool is slated for the next major version of > Boost.Threads. There's no release date yet... the next version is a > significant change being worked on by myself and a few others, and > may need a review process before releasing. I expect development to > last another few months at least. There are no current plans to > replace xtime... that's really something that needs to be outside of > the Boost.Threads library and I don't have the expertise or the time > to dedicate to it. > > Bill Kempf > > > ------------------------ Yahoo! Groups Sponsor > ---------------------~--> > Free $5 Love Reading > Risk Free! > http://us.click.yahoo.com/TPvn8A/PfREAA/Ey.GAA/EbFolB/TM > -------------------------------------------------------------- > -------~-> > > Info: <http://www.boost.org> > Wiki: <http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl> > Unsubscribe: <mailto:boost-users-unsubscribe@yahoogroups.com> > > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > ----------------------------------------------------------------------- DISCLAIMER: The information contained in this transmission, including any attachments, may contain confidential information of Zetec, Inc. and is intended only for the use of the addressee(s) listed above. Unauthorized review, dissemination, reproduction, or other use of the information contained in this transmission is strictly prohibited. If you have received this transmission in error or have reason to believe you are not authorized to receive it, please notify the sender by return email and promptly delete the transmission. Zetec, Inc. reserves the right to monitor and review the content of all messages sent to or received from this email address. -----------------------------------------------------------------------

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