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[iostreams] flush in sink method (newbie)
by Daniel Schlyder 30 Dec '04

30 Dec '04

Hi, I have a class derived from boost::io::sink that I use as follows: boost::io::stream_facade<printsink> os; os << "foo" << std::flush; os->set_colour(255, 255, 0); os << "bar"; How can I flush the buffer in set_colour() method instead of requiring the user to do it? TIA, -- Daniel Schlyder http://bitblaze.com/

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spirit problem
by Cory Nelson 30 Dec '04

30 Dec '04

Hello again, I am trying to use Spirit to parse lines like: name:value but, name might contain colons also. I've not been able to come up with anything that parses this correctly without swallowing up the rest of the document. Anyone able to help? -- Cory Nelson http://www.int64.org

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Functors and function_traits<>
by Hossein Haeri 29 Dec '04

29 Dec '04

Dear all, Yep, again it's me, and it's agian function_traits<>... AFAIK, std::iterator_traits<> is one of the counterparts of function_traits<>, not? A sort of symmetry which iterator_traits<> has got is that it can work for Iterators as well as plain pointers. This seems to be not the case for function_traits<>. That is, you can pass a function type to it, but you can't do that for a functor. Is that right? If it is, a big drawback turns out to happen for variations of the following which are not that few common: template < typename ..., ..., typename Function > struct Foo { typedef typename function_traits<Function> ::result_type result_type; Foo (Function f) : f_(f) {} //... result_type operator () () {/*..*/} Function f_; }; This well works for sth like this: double f(double) {/*...*/} Foo<blah, ..., double (&) (double)> foo(f); But it does not work with the following: struct F { double operator () () {/*...*/} }; Foo f; Foo<blah, ..., F> foo(f); Is this what it should be? Or am I missing anything? In fact, the following code: struct F { double operator () (double x) const {return f(x);} }; typedef boost::function_traits<F>::result_type result_type; makes GCC 3.3.1 to give me an error like the previous one. This is what it says: Compiler: Default compiler Building Makefile: "C:\Documents and Settings\Hossein\My Documents\My Programmes\Probability I\Distributions\7.2.1\Makefile.win" Executing make... make.exe -f "C:\Documents and Settings\Hossein\My Documents\My Programmes\Probability I\Distributions\7.2.1\Makefile.win" all g++.exe -D__DEBUG__ -c 7_2_1Main.cpp -o 7_2_1Main.o -I"C:/Dev-Cpp/include/c++/3.3.1" -I"C:/Dev-Cpp/include/c++/3.3.1/mingw32" -I"C:/Dev-Cpp/include/c++/3.3.1/backward" -I"C:/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include" -I"C:/Dev-Cpp/include" -pg -g3 7_2_1Main.cpp: In instantiation of `boost::function_traits<F>': 7_2_1Main.cpp:70: instantiated from `inverse_variate_generator<main()::Engine, main()::Distribution, F>' 7_2_1Main.cpp:106: instantiated from here 7_2_1Main.cpp:70: error: base class `boost::detail::function_traits_helper<F*>' has incomplete type 7_2_1Main.cpp: In instantiation of `inverse_variate_generator<main()::Engine, main()::Distribution, F>': 7_2_1Main.cpp:106: instantiated from here 7_2_1Main.cpp:70: error: no type named `result_type' in `struct boost::function_traits<F>' 7_2_1Main.cpp:76: error: no type named `result_type' in `struct boost::function_traits<F>' 7_2_1Main.cpp: In function `int main()': 7_2_1Main.cpp:113: error: no match for call to `( inverse_variate_generator<main()::Engine, main()::Distribution, F>) ()' 7_2_1Main.cpp:117: error: no match for call to `( inverse_variate_generator<main()::Engine, main()::Distribution, F>) ()' make.exe: *** [7_2_1Main.o] Error 1 Execution terminated What's wrong with it? Am I missing anything? If I'm not missing anything, then what is the work-around? I find myself right in expecting myself to be able to write a functor (like Foo) which can work equaly well with both function pointers and functors, as like as how the Standard algorithms do. Am I right? Or am I right? ;) TIA, --Hossein __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo

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PROBLEM: How to determining the correct type to use at run time?
by Stephen torri 29 Dec '04

29 Dec '04

I want to expand the File_Base virtual interface here to allow me to pass the 'file_data' from the File class without have two sets of code: if (size == 32) 32 bite code else 64 bite code How do I expand the File_base interface? Is there a way to grab the type of a variable passed into a function and reuse it at run time? So that one time doSomething would have the following if the 'file_data' variable was passed in the File_Base interface: void doSomething (boost::shared_ptr<File_Base> const& f) { File<32> a = f->get_File(); // do 32 bit code } While another time the function code be: void doSomething (boost::shared_ptr<File_Base> const& f) { File<64> a = f->get_File(); // do 64 bit code } I would like to be generic so I don't have to repeat the same code. Stephen --------- SAMPLE PROGRAM -------- #include <iostream> #include <boost/shared_ptr.hpp> /*! \brief Type Mapper type */ template <int size> struct Type_Mapper; /*! \brief 32-bit Type Mapper */ template <> struct Type_Mapper<32> { /*! \brief 32-bit type */ typedef uint32_t arch_t; }; /*! \brief 64-bit Type Mapper */ template <> struct Type_Mapper<64> { /*! \brief 64-bit type */ typedef uint64_t arch_t; }; class File_Base { public: virtual uint32_t const get_Size() = 0; }; template <uint32_t size> class File : public File_Base { public: virtual uint32_t const get_Size() { return size; } typename Type_Mapper<size>::arch_t file_data; }; void doSomething (boost::shared_ptr<File_Base> const& f) { // Needs to access the variable 'file_data' in File<size> // Problem: How to expand File_Base interface so that // the variable 'file_data' can be returned without have // code like: if (f->get_Size() == 32) { // do 32 bit code } else { // do 64 bit code } } void create (void) { boost::shared_ptr<File_Base> f (new File<32>()); doSomething (f); } int main (int, char*) { create (); return 0; }

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[iostreams] New version available
by Jonathan Turkanis 29 Dec '04

29 Dec '04

Dear All, The latest version of the Iostreams library is now available: http://home.comcast.net/~jturkanis/iostreams/ I'd like to thank everyone who sent me bug reports after I posted the previous version. I will include you in the acknowledgments when I rewrite the documentation. Contents: - I. Changes - II. Supported platforms - III. Remaining bugs. ----- I. Changes. There are two important changes. First, the code conversion component has been renamed "code_converter", and it now has an optional Codecvt template parameter. Example. #include <boost/iostreams/code_converter.hpp> #include <boost/iostreams/device/mapped_file.hpp> // Perform code conversion using the global locale: typedef code_converter<mapped_file_source> wide_mapped_file_source; // Perform code conversion using utf8_codecvt_facet: typedef code_converter< mapped_file_source, utf8_codecvt_facet<wchar_t> > utf8_mapped_file_source; code_converter has now been tested with all the codecvt facets from the Dinkumware CoreX library. Second, there is now an option to build the libraries zlib and bzip2 from the source, rather than linking to a pre-built version. To build zlib from the source, define the following variables: ZLIB_SOURCE - path to the .co files ZLIB_INCLUDE - path to the .he files, if different from ZLIB_SOURCE To link to a pre-built version, define the following variables: ZLIB_INCLUDE - path to the .h files ZLIB_LIBPATH - path to the library or archive file ZLIB_BINARY - name of the library or archive file If ZLIB_LIBPATH is not defined, it is assumed that the library file is in a location where it will be found automatically. If ZLIB_BINARY is not defined, it defaults to "z" on UNIX and Cygwin, and to "zdll" on windows (see http://www.gzip.org/zlib/DLL_FAQ.txt) Similar remarks apply for bzip2. ----- II. Supported platforms The tests have been run on the following platforms: VC7.1 with Dinkumware GCC 3.2 (MinGW) GCC 3.4.2 (MinGW) GCC 3.4.1 (Cygwin) CodeWarrior 8.3 (static runtime only) Intel 7.1 with Dinkumware (static runtime only) Intel 8.0 with Dinkumware Borland 5.6.4 with STLPort Failures: - GCC (MinGW, Cygwin): wide streams not supported - Borland 5.6.4: undiagnosed runtime errors in seekable_file_test.cpp, direct_adapter_test.cpp and code_converter_test.cpp III. Remaining bugs. Although the bzip2 tests pass on all the platforms in II, there is an outstanding problem reported by Michel Decima which I haven't been able to fix yet. Best Regards, Jonathan

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Help requested: is_directory fails unexpected
by Tiziano Müller 28 Dec '04

28 Dec '04

Hi all I'm developing a little application (at the moment with VS.NET) using the boost::filesystem part to keep it portable. In the code I use the is_directory() function which fails unexpected when testing files with special characters ("little squares") in it. I tracked it down to the GetFileAttributesA-function which gives the error 123 ("The filename, directory name, or volume label syntax is incorrect."). After reading some pages in the internet, I assume that the only two solutions would be a) rename all those files first or b) make an own solution with the (unicode-enabled) function GetFileAttributesW which makes my app less portable (and will give me some headaches again). Is there a better solution? Thanks in advance, Tiziano

2 1

function, bind & shared_ptr
by Roland Schwarz 28 Dec '04

28 Dec '04

I have found that it is bossible to create an in place functor like object by combining function, bind and shared_ptr. However altough it seems to work I am not sure whether this is safe usage. I would be glad if someone more knowledgeable had a look on it: class bar { void foo() { } }; boost::function<void ()> pfoo; int main(int argc, char* argv[]) { pfoo = boost::bind(&bar::foo, boost::shared_ptr<bar>(new bar)); pfoo(); // ... pfoo = 0; // this operation causes the ~bar dtor to be called return 0; } Thank you, Roland

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[MPL] transform and unpack_args
by David Greene 28 Dec '04

28 Dec '04

All right, I'm still trying to figure out the MPL lambda stuff. I had expected this to work: template<typename Arg> some func { typedef ... type; }; typedef transform< sequence, some_func<_> >::type result; But I get a compiler error about a missing apply<> in some_func. This works: typedef transform< sequence, quote1<some_func> >::type result; I don't understand why the placeholder doesn't convert some_func to an appropriate metafunction class. Similarly, I tried to use unpack args: template<typename Arg1, typename Arg2> some_func2 { typedef ... type; }; typedef transform< zipped_sequence, unpack_args<some_func2<_,_> >::type result; The compiler complained about a missing apply<> in some_func2. Again, this worked: typedef transform< zipped_sequence, unpack_args<quote2<some_func2> > >::type result; Is it because I'm using _ rather than _1 and _2? The examples in the MPL manual using is_same, etc. work fine for me. Learning lots. Hope to learn more. :) -Dave

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read_write_mutex asserting
by jkharris7＠comcast.net 27 Dec '04

27 Dec '04

Boost 1.32.0 on MSVC71 I have a test where I have one writer and five readers, each attempting the appropriate lock for their function on a read_write_mutex, and none doing it recursively. It keeps asserting on me like this: .....Assertion failed: ++loop_count == 1, file read_write_mutex.cpp, line 173 The above happens (in do_write_lock()) when I select reader_priority. Something similar happens in do_read_lock() when I select writer_priority. while (m_state == -1 || m_num_readers_to_wake == 0) { BOOST_ASSERT(++loop_count == 1); //Check for invalid loop conditions (but will also detect spurious wakeups) ++m_num_waiting_readers; m_waiting_readers.wait(l); --m_num_waiting_readers; } In release mode, it's fine, but what could be causing these "spurious wakeups"?

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Newbie Issues linking Boost Unit Test Framework
by Malloc 27 Dec '04

27 Dec '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hey there... I recently downloaded, built, and installed Boost 1.32. I am attempting to use the Boost Unit Test Framework but am running into difficulties figuring out which lib to link to. I am compiling with MS VC++ 7.1. The headers appear to be discovered as they should be, but the linker is failing to find the correct lib. I have tried many of the libs which were created by the build, but these all create more errors (typically to do with redefinitions of std:: functions). At this point I am only trying to compile the example code supplied on the projects web site. some of the libs I tried: libboost_prg_exec_monitor-vc71-mt-1_32.lib libboost_test_exec_monitor-vc71-mt-1_32.lib libboost_unit_test_framework-vc71-mt-1_32.lib some articles I found online advised turning on mutithreading in the compiler properities, enabling run time type identification, and setting exceptions to /EHa I've done all of this but nothing is working, it really just looks like a linker problem. Thanks for any help Dave - ------------------------- linking errors: Linking... main.obj : error LNK2019: unresolved external symbol "bool __cdecl boost::test_tools::tt_detail::test_and_continue_impl(bool,class boost::basic_wrap_stringstream<char> &,class boost::unit_test::basic_cstring<char const >,unsigned int,bool,enum boost::unit_test::log_level)" (?test_and_continue_impl@tt_detail@test_tools@boost@@YA_N_NAAV?$basic_ wrap_stringstream@D@3@V?$basic_cstring@$$CBD@unit_test@3@I0W4log_level @63@@Z) referenced in function "void __cdecl free_test_function(void)" (?free_test_function@@YAXXZ) main.obj : error LNK2019: unresolved external symbol "public: void __thiscall boost::unit_test::test_suite::add(class boost::unit_test::test_case *,unsigned long,int)" (?add@test_suite@unit_test@boost@@QAEXPAVtest_case@23@KH@Z) referenced in function "class boost::unit_test::test_suite * __cdecl init_unit_test_suite(int,char * * const)" (?init_unit_test_suite@@YAPAVtest_suite@unit_test@boost@@HQAPAD@Z) main.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::unit_test::test_suite::test_suite(class boost::unit_test::basic_cstring<char const >)" (??0test_suite@unit_test@boost@@QAE@V?$basic_cstring@$$CBD@12@@Z) referenced in function "class boost::unit_test::test_suite * __cdecl init_unit_test_suite(int,char * * const)" (?init_unit_test_suite@@YAPAVtest_suite@unit_test@boost@@HQAPAD@Z) main.obj : error LNK2019: unresolved external symbol "class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const & __cdecl boost::unit_test::ut_detail::normalize_test_case_name(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)" (?normalize_test_case_name@ut_detail@unit_test@boost@@YAABV?$basic_str ing@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AAV45@@Z) referenced in function "class boost::unit_test::test_case * __cdecl boost::unit_test::create_test_case(void (__cdecl*)(void),class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?create_test_case@unit_test@boost@@YAPAVtest_case@12@P6AXXZV?$basic_s tring@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) main.obj : error LNK2001: unresolved external symbol "public: virtual unsigned long __thiscall boost::unit_test::test_case::size(void)const " (?size@test_case@unit_test@boost@@UBEKXZ) main.obj : error LNK2019: unresolved external symbol "protected: __thiscall boost::unit_test::test_case::test_case(class boost::unit_test::basic_cstring<char const >,bool,unsigned long,bool)" (??0test_case@unit_test@boost@@IAE@V?$basic_cstring@$$CBD@12@_NK1@Z) referenced in function "public: __thiscall boost::unit_test::function_test_case::function_test_case(void (__cdecl*)(void),class boost::unit_test::basic_cstring<char const >)" (??0function_test_case@unit_test@boost@@QAE@P6AXXZV?$basic_cstring@$$C BD@12@@Z) libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __malloc_dbg referenced in function "void * __cdecl operator new(unsigned int,struct std::_DebugHeapTag_t const &,char *,int)" (??2@YAPAXIABU_DebugHeapTag_t@std@@PADH@Z) libcpmtd.lib(_tolower.obj) : error LNK2001: unresolved external symbol __malloc_dbg libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __free_dbg referenced in function "void __cdecl operator delete(void *,struct std::_DebugHeapTag_t const &,char *,int)" (??3@YAXPAXABU_DebugHeapTag_t@std@@PADH@Z) LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main referenced in function _mainCRTStartup Debug/unittests.exe : fatal error LNK1120: 9 unresolved externals Build Time 0:00 Build log was saved at "file://e:\C++Source\unittests\Debug\BuildLog.htm" unittests - 11 error(s), 0 warning(s) - ---------------------- Done ---------------------- Build: 0 succeeded, 1 failed, 0 skipped - ---------------------------------------------------------------------- - ---------- -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.3 for non-commercial use <http://www.pgp.com> iQA/AwUBQc8OX06myMoV5dC/EQL6eACeI7zolVzltRg/K4qyEtKtezJCVnkAmgK6 xSo1f992Mg3vXkIyQ/2Nk1z+ =6lrH -----END PGP SIGNATURE-----

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Problems with lexical_cast
by Georgios Diamantopoulos 27 Dec '04

27 Dec '04

Hello, I am trying to convert from wchar_t to std::string with #include <iostream> #include <sstream> #include <boost/lexical_cast.hpp> int main() { std::cout << boost::lexical_cast<std::string>(L"blah") << std::endl; return 0; } but I get the following error: d:\SDK\boost\include\boost-1_32\boost\lexical_cast.hpp(158) : error C2679: binary '=' : no operator found which takes a right-hand operand of type 'std::basic_stringstream<_Elem,_Traits,_Alloc>::_Mystr' (or there is no acceptable conversion) Any ideas? This is with boost 1.3.2 and VC7.1 Best regards, Georgios

2 1

units library
by Chris Goller 26 Dec '04

26 Dec '04

I've been looking around for a unit conversion library. I've seen some on http://groups.yahoo.com/group/boost/files/ but am wondering if any have been put into boost release yet. Thanks, Chris

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function_traits<> help, ASAP please!
by Hossein Haeri 26 Dec '04

26 Dec '04

Dear all, According to the Boost.Type_Traits I guess that function_traits<> is supposed to be of the most docile ones. After all it's got a few lines of comment... Don't know how, and why, but the following plain-jane programme #include <iostream> #include "boost\type_traits\function_traits.hpp" int main() { typedef void (*FType) (); typedef typename boost::function_traits<FType> ::result_type return_type; cin.get(); return 0; } Gives me the following error under GCC 3.3.1 (which I'm sure supports partial template specialisation): Compiler: Default compiler Building Makefile: "C:\Documents and Settings\Hossein\My Documents\My Programmes\Probability I\Distributions\7.2.1\Makefile.win" Executing make... make.exe -f "C:\Documents and Settings\Hossein\My Documents\My Programmes\Probability I\Distributions\7.2.1\Makefile.win" all g++.exe -D__DEBUG__ -c 7_2_1Main.cpp -o 7_2_1Main.o -I"C:/Dev-Cpp/include/c++/3.3.1" -I"C:/Dev-Cpp/include/c++/3.3.1/mingw32" -I"C:/Dev-Cpp/include/c++/3.3.1/backward" -I"C:/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include" -I"C:/Dev-Cpp/include" -pg -g3 7_2_1Main.cpp: In instantiation of `boost::function_traits<void (*)()>': 7_2_1Main.cpp:57: instantiated from here 7_2_1Main.cpp:57: error: base class `boost::detail::function_traits_helper<void (**)()>' has incomplete type 7_2_1Main.cpp: In function `int main()': 7_2_1Main.cpp:57: error: no type named `result_type' in `struct boost::function_traits<void (*)()>' 7_2_1Main.cpp:57: error: using `typename' outside of template 7_2_1Main.cpp:57: error: ISO C++ forbids declaration of `return_type' with no type make.exe: *** [7_2_1Main.o] Error 1 Execution terminated Is he right? Is there anything particular I should had done, and I've not? TIA, --Hossein __________________________________ Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard. http://promotions.yahoo.com/new_mail

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Random, Random Seed
by Hossein Haeri 25 Dec '04

25 Dec '04

Dear all, Using the following (slightly manipulated) sample code of Boost.Random, I'm always gettig the same sequence: boost::mt19937 rng; boost::uniform_int<> six(1,6); boost::variate_generator<boost::mt19937, boost::uniform_int<> > die(rng, six); for(size_t i = 0; i < 10; ++i) cout << die() << " "; I know that this is the consequence of the fact that the generators are deterministic ones, plus another fact that they start using the same seed. This behaviour, however, is not that much desirable, and I'm seaking some sort of good random seed. Any suggestions? TIA and Merry Christmas, --Hossein __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail

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Looking for lazy if_
by Agoston Bejo 24 Dec '04

24 Dec '04

Hi! I'm looking for some "lazy" version of boost::mpl::if_. I'm not very much into MPL, so I don't really know either if such a function exists in boost or whether it can be easily constructed. Platform: VC++7.1 Thx in advance, Agoston This example shows you how it may cause problems that both "branches" of if_ get evaluated: //------------------------------------------------------------ #include <iostream> #include <vector> #include <boost/mpl/if.hpp> #include <boost/type_traits.hpp> using namespace std; using namespace boost; using namespace mpl; template<typename T> struct t_type { typedef typename if_< is_arithmetic<T>, T, typename T::value_type>::type // ERROR! type; }; int _tmain(int argc, _TCHAR* argv[]) { cout << typeid(t_type<int>::type).name() << endl; // 'int' cout << typeid(t_type<vector<double> >::type).name() << endl; // 'double' return 0; } //------------------------------------------------------------ Error message: error C2825: 'T::value_type': cannot form a qualified name see reference to class template instantiation 't_type<T>' being compiled with [ T=int ]

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Presentation and problem with uBlas.
by Le Farfadet Spatial 24 Dec '04

24 Dec '04

Hello every body out there ! Let me introduce myself : I am Yoann LE BARS and I am a fresh Boost user. I am french too, so please excuse my bad english. I have got a problem with Boost uBlas, I hope it is the good list to post about it. I have made a little exemple which show what is my problem (it compiles but I found the behaviour very strange) : http://cpp.sourceforge.net/pastebin.php?show=2439 Here is a version which works but do not satisfy me : http://cpp.sourceforge.net/pastebin.php?show=2440 Why does it not satisfy me ? Well, because I am fulling a sparse matrix with an identity matrix, the A matrix and the transposed A matrix : it is very redondant and A can be a very big matrix. That is the reason why I have make the LeastSquareMatrix class. I believe I have done something wrong in it, but what ? Best regards. Yoann LE BARS, alias Le Farfadet Spatial

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[MPL] replace_if question
by David Greene 23 Dec '04

23 Dec '04

Well, my mpl adventure continues. I'm trying to place pair members of a sequence with their keys: #include <boost/type_traits.hpp> #include <boost/mpl/pair.hpp> #include <boost/mpl/key_type.hpp> #include <boost/mpl/map.hpp> #include <boost/mpl/vector.hpp> #include <boost/mpl/replace_if.hpp> #include <boost/mpl/int.hpp> #include <iostream> #include <typeinfo> using namespace boost; using namespace boost::mpl; struct pair_base {}; template<typename Key, typename Value> struct pair_type : public pair<Key, Value>, private pair_base {}; template<typename Sequence> struct replaceit { typedef typename replace_if< Sequence, is_base_and_derived<pair_base, _>, key_type<map<>, _> >::type type; }; int main(void) { replaceit< vector< charm pair_type<int, int_<32> >, pair_type<long, int_<64> > double > >::type toprint; std::cout << typeid(toprint).name() << std::endl; return(0); }; I know this is incorrect because the pairs will be replaced by the key_type metafunction itself. If I add ::type to the end of key_type<map<>, _> the compiler complains that no ::first member exists: boost-1_32/boost/mpl/pair.hpp: In instantiation of `boost::mpl::first<mpl_::_>': replace.cc:25: instantiated from `boost::mpl::key_type_impl<boost::mpl::aux::map_tag>::apply<boost::mpl::map<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::_>' replace.cc:25: instantiated from `boost::mpl::key_type<boost::mpl::map<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::_>' replace.cc:25: instantiated from here boost-1_32/boost/mpl/pair.hpp:43: no type named `first' in `struct mpl_::_' What's the right way to do this? Furthermore, is there a better way to identify pairs in replace_if than deriving from a special class? All I can think of is writing a predicate class and specializing it for mpl::pair<U, V>. Seems like there should be an easier way. Thanks! -Dave

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Questions about boost.thread
by Kosta 23 Dec '04

23 Dec '04

Hi! I have the following questions about boost.thread: 1) Did I miss an abstraction about atomic operations, e.g. for ++, --, +=, -=, <, ==, =, ... for uint8_t, uint16_t, uint32_t, ... (something like InterlockedIncrement() on WIN32)? I know that I can Mutexes and Locks to implement the desired behavior, but I think a more lightweight solution for this basic operations should be available, too. 2) How can I change the priority of a boost::thread? 3) boost::shared_ptr<> and boost::weak_ptr<> are not thread safe, are they? What is the suggested way to write thread safe implementations of them? Kosta

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RE: [Boost-users] /clr causes __fastcall to become __stdcall-->unresolved externals for regex
by Fuqua, Andrew (ISSAtlanta) 23 Dec '04

23 Dec '04

> You'll have to modify the definition of BOOST_REGEX_CALL in > boost/regex/config.hpp so that it's __cdecl whatever the build options are > (this is what the next version will do anyway BTW). Excellent. That's easy enough. THANKS!

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semaphore
by Amerio 23 Dec '04

23 Dec '04

Hello, I'm lacking a boost semaphore, so I tried to roll my own. Being carefull with threads, I present here my version, hoping you gurus will spot any flaw. class sem { sem(unsigned count): m_count(count) {} void post() { boost::mutex::scoped_lock lock(m_mutex); ++m_count; m_cond_.notify_one(); } void wait() { boost::mutex::scoped_lock lock(m_mutex); while ( m_count==0 ) m_cond.wait( lock ); --m_count; } private: unsigned m_count; boost::mutex m_mutex; boost::condition m_cond; }; Objective : I need a semaphore to sync many readers to a single input queue. If you know another implementation or solution to this specific problem, your help is welcome. Thank you.

3 6

Boost contents
by Foster, Gareth 23 Dec '04

23 Dec '04

Hello, Just a general interest question which came to me reading the email below. Are there any critera for what can/can't be added to boost? Somebody was telling me about ACE recently, which apprently attempts to wrap POSIX with C++. It looks like there is overlap there with Boost. Does Boost have some similar aim, to be a set of libraries covering a certain anlge, or is it litterally a collection of useful code? Would something like a GUI abstraction system be considered? Or is the limit perhaps things that could resonably make it into the STL? Hope that isn't off topic, Thanks! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Jonathan Turkanis Sent: 23 December 2004 09:58 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: units library Dan Dimerman wrote: > Jeff Garland wrote: >> On Wed, 22 Dec 2004 15:33:18 -0700, Chris Goller wrote >> >>> I've been looking around for a unit conversion library. I've seen >>> some on http://groups.yahoo.com/group/boost/files/ but am wondering >>> if any have been put into boost release yet. >> >> >> Nope, none are in a boost release. And I think that the most active >> author has recently abandoned his effort :-( So I'm afraid you >> shouldn't expect anything soon. >> >> Jeff > Are you referring to something like this: > > boost_1_32_0/libs/mpl/doc/tutorial/dimensional-analysis.html I believe he's refering to Andy Little's pqs library. Andy announced recently that he wasn't going to propose it for review, but he didn't say why. I never looked at it. Matthias Schabel also was working on a physical quantities library in the last year or so, but I haven't heard anything recently. David and Aleksey appear to discuss dimencional anaylsis in some detail here: http://www.artima.com/cppsource/metafunctions.html, but I don't know how close this comes to a full-fledged dimensional anaylsis library. Jonathan _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

2 1

/clr causes __fastcall to become __stdcall --> unresolved externals for regex
by Fuqua, Andrew (ISSAtlanta) 23 Dec '04

23 Dec '04

I'm getting a handful of the following errors and warnings while trying to build with boost regex in MS Visual C++ .NET with the /clr option (managed extensions). boost_1_32_0\boost\regex\v4\match_results.hpp(189): warning C4561: '__fastcall' incompatible with the '/clr' option: converting to '__stdcall' error LNK2001: unresolved external symbol "public: class boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> > & __stdcall boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> >::operator=(class boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> > const &)" (??4?$reg_expression@DV?$regex_traits@D@boost@@V?$allocator@D@std@@@boos t@@$$FQAGAAV01@ABV01@@Z) The debug build works fine because config.hpp defines BOOST_REGEX_CALL to _cdecl. It's the release configuration that has the trouble with __fastcall being changed to __stdcall. How do I get around this (without getting rid of /clr or using a debug build)? thanks

2 1

RE: [Boost-users] Re: [newbie] building serialization library
by Muruganathan Annamalai 23 Dec '04

23 Dec '04

hi, When I try to compile the serialization library, Iam getting the following error, "cl" /Zm800 -nologo /EHsc -c -DNDEBUG -DNDEBUG -DBOOST_TEST_NO_AUTO_LINK=1 /Ogity /O2 /Gs /Ob2 /EHsc /GR /MT -Gy -I"bin\boost\libs\serialization\build" -I"d:\DEVSTU~1.0\Common\include" -I"E \boost_1_32_0" -Fo"bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\rele ase\runtime-link-static\threading-multi\xml_wgrammar.obj" -Tp"E:\boost_1_32_0\libs\serialization\build\.. src/xml_wgrammar.cpp" ..failed vc-C++ bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\release\ runtime-link-static\threading-multi\xml_wgrammar.obj... c-C++ bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\release\ runtime-link-static\threading-multi\xml_wiarchive.obj ml_wiarchive.cpp :\boost_1_32_0\boost/spirit/core/config.hpp(56) : fatal error C1189: #error : "Compiler not supported. See note in <boost/spirit/core/config.hpp>" If you look at config.cpp it is mentioned vc6 is not supported. How to overcome this? --annamalai -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org]On Behalf Of Robert Ramey Sent: Wednesday, December 22, 2004 9:52 PM To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: [newbie] building serialization library [newbie] building serialization libraryyes, see http://www.meta-comm.com/engineering/boost-regression/developer/serializatio n.html Robert Ramey "Muruganathan Annamalai" <Annamalai.Muruganathan(a)sisl.co.in> wrote in message news:037B536F875D9F4CA23B747E40FCF97B0558E9CF@blrk001a.sisl.co.in... hi, Is it possible to build the boost serialization library using VC6 compiler. --annamalai --------------------------------------------------------------- Attempted search from D:\c\whereis up to the root so i'm sorry to bother y'all with such a simple problem, all i need to know is how to compile (the 'hello world' scenario). thanks for your attention. -frank brown (stupid jerk) http://www.inwa.net/~frog _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

2 1

newbie-problem with using boost.python
by ozan 23 Dec '04

23 Dec '04

I am trying to build the example python code with boost by following the instructions on http://www.boost.org/libs/python/doc/tutorial/doc/html/python/hello.html but when I command "bjam -sTOOLS=msvc" on my command line (on WINDOWS XP) I am getting some error and messages like followings and I cannot get any boost_python.dll or hello.pyd. Thanks! ...found 1448 targets... ...updating 10 targets... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\from_python.obj from_python.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\libs\python\build\../s rc/converter/from_python.cpp(142) : error C2512: 'vector<struct boost::python::converter::rvalue_from_python_chain const *,class std::allocator<struct boost::python::converter::rvalue_from_python_chain const *> >' : no appropriate default constructor available CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\from_python.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_ 32_0\libs\python\build\../src/converter/from_python.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\from_python.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\type_id.obj type_id.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\type_id.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0 \libs\python\build\../src/converter/type_id.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\type_id.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\class.obj class.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\class.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\l ibs\python\build\../src/object/class.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\class.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\inheritance.obj inheritance.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2504: 'add_reference' : base class undefined D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2143: syntax error : missing ',' before '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2059: syntax error : '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2518: keyword 'typename' illegal in base class list; ignored D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2143: syntax error : missing ';' before '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2059: syntax error : ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2059: syntax error : '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : error C2143: syntax error : missing ';' before '}' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2327: 'cons<Head,Tail>::head' : member from enclosing class is not a type name, static, or enumerator D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2065: 'head' : undeclared identifier D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2656: 'cons' : function not allowed as a bit field D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2040: 'tail' : 'int (void)' differs in levels of indirection from '' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2143: syntax error : missing ';' before '{' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : error C2059: syntax error : 'End of Token Stream' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : fatal error C1201: unable to continue after syntax error in template class definition D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\inheritance.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_ 32_0\libs\python\build\../src/object/inheritance.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\inheritance.obj... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>from_p ython.obj... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.lib for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.CMD for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.lib... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.pyd for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.lib for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll... ...failed updating 4 targets... ...skipped 6 targets... D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\libs\python\example\tu torial> --------------------------------- Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard.

2 1

Any interest in type_traits workaround macros for ill conforming compilers?
by Ray Hilton 22 Dec '04

22 Dec '04

Something along theese lines #include <boost\type_traits.hpp> #define BOOST_REMOVE_POINTER(arg) \ namespace boost \ { \ template <> \ struct remove_pointer<arg*> \ { \ typedef arg type; \ }; \ } // end namespace boost user file struct abc { object x; object b; }; BOOST_REMOVE_POINTER(abc) boosts remove_pointer<T> will now work as expected for abc types Do such macros already exist in boost? Such macros can also be used on good compilers* to describe traits that it can't figure out, such as has_nothrow_assign<T> * compilers supporting partial template specialization

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