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how to pass pointer to boost.python function in python?
by Qinfeng(Javen) Shi 06 Sep '06

06 Sep '06

Dear all, I wraped a v_varray class into python by boost. I called it in python, most of its attributes work well. Only when I call a.push(1.0),it crashed due to not match type.The problem is that my input argument in c++ is float*(for passing an array) while python has no pointer type. How can I pass a variable in python to a.push() to make sure it work correctly? Many thanks for help! Javen /*************************running result in python:****************/ >>> a.push(1.0) Traceback (most recent call last): File "<stdin>", line 1, in ? Boost.Python.ArgumentError: Python argument types in array_floatstar.push(array_floatstar, float) did not match C++ signature: push(v_array<float*> {lvalue}, float*) >>> /*************************v_array def in stack.h:****************/ #ifndef _STACK_H #define _STACK_H #include <stdlib.h> template<class T> class v_array{ public: int index; int length; T* elements; T last() { return elements[index-1];} void decr() { index--;} v_array() { index = 0; length=0; elements = NULL;} T& operator[](unsigned int i) { return elements[i]; } void push(const T &new_ele) { while(index >= length) { length = 2*length + 3; elements = (T *)realloc(elements,sizeof(T) * length); } this->elements[index++] = new_ele; } void alloc(int newLength) { elements = (T *)realloc(elements, sizeof(T) * newLength); length = newLength; } T pop() { if (index > 0) return this->elements[--index]; else return T(); } }; #endif /*************************stack.cpp for boost.python(bjam need it to build a stack.so file):****************/ // Boost Includes ============================================================== #include <boost/python.hpp> #include <boost/cstdint.hpp> // Includes ==================================================================== #include "stack.h" // Using ======================================================================= using namespace boost::python; // Declarations ================================================================ BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(float) // Module ====================================================================== BOOST_PYTHON_MODULE(stack) { class_< v_array<float*> >("array_floatstar", init< >()) .def(init< const v_array<float*>& >()) .def_readwrite("index", &v_array<float*>::index) .def_readwrite("length", &v_array<float*>::length) .def_readwrite("elements", &v_array<float*>::elements) .def("last", &v_array<float*>::last, return_value_policy< return_opaque_pointer >()) .def("decr", &v_array<float*>::decr) .def("push", &v_array<float*>::push) .def("alloc", &v_array<float*>::alloc) .def("pop", &v_array<float*>::pop, return_value_policy< return_opaque_pointer >()) ; } -- Qinfeng(Javen) Shi Research School of Information Sciences and Engineering Australian National University Locked Bag 8001 Canberra ACT 2601

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portable way to determine return type from class member function
by Peter Piehler 05 Sep '06

05 Sep '06

Hello, i look for a portable way to determine the return-type of a member function: #include <boost/utility/result_of.hpp> #include <boost/type_traits/function_traits.hpp> class CMyClass { public: int method( void ) {return 5;} }; template< typename T > struct result_of {}; template< typename R, typename A > struct result_of< R(*)(A) > { typedef R type; }; template< typename R > struct result_of< R(*)(void) > { typedef R type; }; template< typename R, typename C > struct result_of< R(C::*)(void) > { typedef R type; }; template< typename R, typename C, typename A > struct result_of< R(C::*)(A) > { typedef R type; }; /*...some other specialisations...*/ /* (1) OK, but I must now return-type and signature */ //typedef int (CMyClass::*fnPointer_t)(void); /* (2) OK, but I must now return-type and signature */ //typedef typeof(int(CMyClass::*)(void)) fnPointer_t; /* (3) OK, compiler determine return-type and signature if CMyClass::method non-ambiguous */ typedef typeof(&CMyClass::method) fnPointer_t; int main( ) { fnPointer_t p = &CMyClass::method; /* (4) OK */ result_of< fnPointer_t >::type i; /* (5) OK, if CMyClass::method non-ambiguous */ result_of< typeof(&CMyClass::method) >::type i2; /* (6) Failure, type expected */ //result_of< p >::type i3; /* (7) OK */ result_of< typeof(p) >::type i4; /* (8) Failure, no function pointer support */ //boost::result_of< fnPointer_t >::type i5; /* (9) Failure, no function pointer support */ //boost::result_of< typeof(&CMyClass::method) >::type i6; /* (10) Failure, no function pointer support */ //boost::function_traits< fnPointer_t >::result_type i7; /* (11) Failure, no function pointer support */ //boost::function_traits< typeof(&CMyClass::method) >::result_type i8; } Which is a portable way? My prefered solution is number 5, but i dont now whether typeof(&CMyClass::method) is portable. Why function pointer are not supported by boost::result_of and boost::function_traits templates? Thanks and Greetings, Peter

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Building Tests With Boost Test
by Eric Lemings 05 Sep '06

05 Sep '06

Hi, Can anyone point me to the documentation for writing Jamfiles to build tests that use the Boost Test library? All that I can find in the Boost Test documentation is source code. Thanks, Eric.

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[variant] MSVC7.1 produces an Internal Compiler error when variant gets too complicated
by Eoin 05 Sep '06

05 Sep '06

Hello I am developing a library which uses a variant like this one class my_class {}; typedef boost::make_recursive_variant< my_class, int , std::string, boost::posix_time::ptime, std::vector<boost::recursive_variant_>, std::map<std::string, boost::recursive_variant_> >::type param; Under a Debug build when the type my_class is not present everything compiles perfectly, however with my_class I get internal compiler errors such as the ones below; G:\Program Files (x86)\Microsoft Visual Studio .NET 2003\Vc7\include\xstring(827) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information c1xx : fatal error C1063: INTERNAL COMPILER ERROR Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information While playing around with the code and making adjustments (like reordering the types for the variant) I once got the compiler to display this error; fatal error C1067: compiler limit : debug information module size exceeded Searchs on the net pointed to using the #pragma component (mintypeinfo, on ) around the offending code, but even when I include this pragam enclosing the entire header containing my variant type I continue to get the Internal Compiler Error for some files, though it does go away for others. As hinted to by searches on the net this problem seems to be related to debug information and indeed everything does work fine under a release build. However as I am developing a library for use by others I cannot force them to avoid debug builds :^) . Everything works fine with the lastest MinGW debug or release. Any suggestions would be very much appreciated. Kind Regards, Eoin.

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Too stupid to install Boost
by Thomas 05 Sep '06

05 Sep '06

Hi, I would like to use the Boost RegEx Library. Somehow I failed installing it (WinXP, VC6). Is there a step by step instruction to get boost running under this configuration? The steps I took so far: 1) Set the MSDevDir and MSVCDir EnvVars by hand. 2) Compiled BJam and copied it to the boost root. 3) Execute bjam "-sTOOLS msvc" install 4) Set the path for include files and libraries in Tools->Options->Directories to the folder I unzipped Boost to. Got the following error messages while trying to compile a simple regex example :( Thanks in advance, Thomas --------------------Configuration: trwetst - Win32 Release-------------------- Compiling... trwetst.cpp C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::re gex_traits<char,class boost::w32_regex_traits<char> > > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > >(class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > *,bool (__thiscall T::*)(void ))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::*' to 'bool (__ thiscall T::*)(void)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,cla ss boost::w32_regex_traits<char> > >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::* )' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::cpp _regex_traits<char> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::cpp_regex_traits<char> > >(class boost::re_detail::perl_ma tcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::cpp_regex_traits<char> > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<char const *,cl ass std::allocator<struct boost::sub_match<char const *> >,class boost::cpp_regex_traits<char> >::*' to 'bool (__thiscall T::*)(void)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::cpp_regex_traits<char> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::cpp_regex_traits<char> >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_ regex_traits<char> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_regex_traits<char> > >(class boost::re_detail::perl_matc her<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_regex_traits<char> > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_regex_traits<char> >::*' to 'bool (__thiscall T::*)(void)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_regex_traits<char> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::c_regex_traits<char> >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::w32 _regex_traits<char> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::w32_regex_traits<char> > >(class boost::re_detail::perl_ma tcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::w32_regex_traits<char> > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<char const *,cl ass std::allocator<struct boost::sub_match<char const *> >,class boost::w32_regex_traits<char> >::*' to 'bool (__thiscall T::*)(void)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::w32_regex_traits<char> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,class boost::w32_regex_traits<char> >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const * > >,struct boost::regex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<uns igned short const *> >,struct boost::regex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > > >(class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,s truct boost::regex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocato r<struct boost::sub_match<unsigned short const *> >,struct boost::regex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > >::*' to 'bool (__thiscall T::*)(void)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::r egex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost:: regex_traits<unsigned short,class boost::w32_regex_traits<unsigned short> > >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const * > >,class boost::cpp_regex_traits<unsigned short> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::cpp_rege x_traits<unsigned short> > >(class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::cpp_regex_traits<unsigned short> > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::cpp_regex_traits<unsigned short> >::*' to 'bool (__thiscall T::*)(v oid)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::cp p_regex_traits<unsigned short> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::cpp_regex_traits<unsigned short> >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const * > >,struct boost::c_regex_traits<unsigned short> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::c_regex_ traits<unsigned short> > >(class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::c_regex_traits<unsigned short> > *,bool (__thiscall T::*)(void))' : cannot co nvert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::c_regex_traits<unsigned short> >::*' to 'bool (__thiscall T::*)(void) ' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::c _regex_traits<unsigned short> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,struct boost::c_regex_traits<unsigned short> >::*)' C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: '__thiscall boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const * > >,class boost::w32_regex_traits<unsigned short> > >::boost::re_detail::concrete_protected_call<class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::w32_rege x_traits<unsigned short> > >(class boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::w32_regex_traits<unsigned short> > *,bool (__thiscall T::*)(void))' : cannot convert parameter 2 from 'bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::w32_regex_traits<unsigned short> >::*' to 'bool (__thiscall T::*)(v oid)' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast C:\BOOST\boost/shared_ptr.hpp(246) : while compiling class-template member function 'bool __thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::w3 2_regex_traits<unsigned short> >::protected_call(bool (__thiscall boost::re_detail::perl_matcher<unsigned short const *,class std::allocator<struct boost::sub_match<unsigned short const *> >,class boost::w32_regex_traits<unsigned short> >::*)' Error executing cl.exe. trwetst.exe - 8 error(s), 0 warning(s)

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Re: [Boost-users] how to wrap multi files(*.cc, *.h) to python by pyste orboost.python? (Fran?ois Duranleau)
by Qinfeng(Javen) Shi 05 Sep '06

05 Sep '06

Thanks very much! And thanks for your help last time about template functions as well! Best wishes! -- Qinfeng(Javen) Shi Research School of Information Sciences and Engineering Australian National University Locked Bag 8001 Canberra ACT 2601

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Re: [Boost-users] Too stupid to install Boost
by Hughes, James 05 Sep '06

05 Sep '06

VC6 might be too early a compiler to support some of the stuff regex uses (i.e. its non-compliant for some template C++ features)....Does it work with a later compiler?? James > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Thomas > Sent: 31 August 2006 15:19 > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Too stupid to install Boost > > Hi, > I would like to use the Boost RegEx Library. Somehow I failed > installing it (WinXP, VC6). Is there a step by step > instruction to get boost running under this configuration? > The steps I took so far: > 1) Set the MSDevDir and MSVCDir EnvVars by hand. > 2) Compiled BJam and copied it to the boost root. > 3) Execute bjam "-sTOOLS msvc" install > 4) Set the path for include files and libraries in > Tools->Options->Directories to the folder I unzipped Boost to. > > Got the following error messages while trying to compile a > simple regex example :( > > Thanks in advance, > Thomas > > --------------------Configuration: trwetst - Win32 > Release-------------------- > Compiling... > trwetst.cpp > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::re gex_traits<char,class boost::w32_regex_traits<char> > > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::regex_traits<char,class > boost::w32_regex_traits<char> > > >(class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::regex_traits<char,class boost::w32_regex_traits<char> > > > *,bool (__thiscall T::*)(void ))' : cannot convert > parameter 2 from 'bool (__thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::regex_traits<char,class boost::w32_regex_traits<char> > > >::*' to 'bool (__ thiscall T::*)(void)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::regex_traits<char,cla ss boost::w32_regex_traits<char> > > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::regex_traits<char,class boost::w32_regex_traits<char> > >::* )' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::cpp _regex_traits<char> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::cpp_regex_traits<char> > >(class > boost::re_detail::perl_ma tcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::cpp_regex_traits<char> > *,bool (__thiscall > T::*)(void))' : cannot convert parameter 2 from 'bool > (__thiscall boost::re_detail::perl_matcher<char const *,cl > ass std::allocator<struct boost::sub_match<char const *> > >,class boost::cpp_regex_traits<char> >::*' to 'bool > (__thiscall T::*)(void)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::cpp_regex_traits<char> > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<char > const *,class std::allocator<struct boost::sub_match<char > const *> >,class boost::cpp_regex_traits<char> >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::c_ regex_traits<char> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::c_regex_traits<char> > >(class > boost::re_detail::perl_matc her<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::c_regex_traits<char> > *,bool (__thiscall > T::*)(void))' : cannot convert parameter 2 from 'bool > (__thiscall boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> > >,struct boost::c_regex_traits<char> >::*' to 'bool > (__thiscall T::*)(void)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,struct > boost::c_regex_traits<char> >::protected_call(bool > (__thiscall boost::re_detail::perl_matcher<char > const *,class std::allocator<struct boost::sub_match<char > const *> >,struct boost::c_regex_traits<char> >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::w32 _regex_traits<char> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::w32_regex_traits<char> > >(class > boost::re_detail::perl_ma tcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::w32_regex_traits<char> > *,bool (__thiscall > T::*)(void))' : cannot convert parameter 2 from 'bool > (__thiscall boost::re_detail::perl_matcher<char const *,cl > ass std::allocator<struct boost::sub_match<char const *> > >,class boost::w32_regex_traits<char> >::*' to 'bool > (__thiscall T::*)(void)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<char const *,class > std::allocator<struct boost::sub_match<char const *> >,class > boost::w32_regex_traits<char> > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<char > const *,class std::allocator<struct boost::sub_match<char > const *> >,class boost::w32_regex_traits<char> >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const * > > >,struct boost::regex_traits<unsigned short,class > boost::w32_regex_traits<unsigned short> > > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<uns igned short const > *> >,struct boost::regex_traits<unsigned short,class > boost::w32_regex_traits<unsigned short> > > >(class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,s truct boost::regex_traits<unsigned short,class > boost::w32_regex_traits<unsigned short> > > *,bool > (__thiscall T::*)(void))' : cannot convert parameter 2 from > 'bool (__thiscall boost::re_detail::perl_matcher<unsigned > short const *,class std::allocato r<struct > boost::sub_match<unsigned short const *> >,struct > boost::regex_traits<unsigned short,class > boost::w32_regex_traits<unsigned short> > >::*' to 'bool > (__thiscall T::*)(void)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,struct boost::r egex_traits<unsigned short,class > boost::w32_regex_traits<unsigned short> > > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,struct > boost:: > regex_traits<unsigned short,class boost::w32_regex_traits<unsigned > short> > >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const * > > >,class boost::cpp_regex_traits<unsigned short> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::cpp_rege x_traits<unsigned short> > >(class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::cpp_regex_traits<unsigned short> > *,bool > (__thiscall T::*)(void))' : cannot > convert parameter 2 from 'bool (__thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::cpp_regex_traits<unsigned short> >::*' to > 'bool (__thiscall T::*)(v oid)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::cp p_regex_traits<unsigned short> > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::cpp_regex_traits<unsigned short> >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const * > > >,struct boost::c_regex_traits<unsigned short> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,struct boost::c_regex_ traits<unsigned short> > >(class > boost::re_detail::perl_matcher<unsigned > short const *,class std::allocator<struct > boost::sub_match<unsigned short const *> >,struct > boost::c_regex_traits<unsigned short> > *,bool (__thiscall > T::*)(void))' : cannot co nvert parameter 2 from 'bool > (__thiscall boost::re_detail::perl_matcher<unsigned short > const *,class std::allocator<struct boost::sub_match<unsigned > short const *> >,struct boost::c_regex_traits<unsigned short> > >::*' to 'bool (__thiscall T::*)(void) ' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,struct boost::c _regex_traits<unsigned short> > >::protected_call(bool (__thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,struct boost::c_regex_traits<unsigned short> >::*)' > C:\BOOST\boost/regex/v4/perl_matcher_common.hpp(129) : error C2664: > '__thiscall boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const * > > >,class boost::w32_regex_traits<unsigned short> > > >::boost::re_detail::concrete_protected_call<class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::w32_rege x_traits<unsigned short> > >(class > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::w32_regex_traits<unsigned short> > *,bool > (__thiscall T::*)(void))' : cannot > convert parameter 2 from 'bool (__thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const > *> >,class boost::w32_regex_traits<unsigned short> >::*' to > 'bool (__thiscall T::*)(v oid)' > Types pointed to are unrelated; conversion requires > reinterpret_cast, C-style cast or function-style cast > C:\BOOST\boost/shared_ptr.hpp(246) : while compiling > class-template member function 'bool __thiscall > boost::re_detail::perl_matcher<unsigned short const *,class > std::allocator<struct boost::sub_match<unsigned short const *> >,class > boost::w3 > 2_regex_traits<unsigned short> >::protected_call(bool > (__thiscall boost::re_detail::perl_matcher<unsigned short > const *,class std::allocator<struct boost::sub_match<unsigned > short const *> >,class boost::w32_regex_traits<unsigned short> >::*)' > Error executing cl.exe. > > trwetst.exe - 8 error(s), 0 warning(s) > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

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Trouble using the boost::regex library on the Windows Mobile 5.0 SDK
by Matthew Bourdua 05 Sep '06

05 Sep '06

Hello, This is my first time posting to the boost mailing list. I certainly apologize if I am going about posting my question to the wrong way. I was just wondering if anyone has experiencing using boost with the Windows Mobile 5.0 SDK (with Visual Studio 2005). I am having some trouble getting the most basic setup to build correctly. I am simply trying to build / deploy to the WM5.0 emulator at this point. Steps that I went through: 1. Create a new "Win32 Smart Device" project for the Windows Mobile 5.0 SDK, with all default settings 2. Copy the code from the regex overview page: http://www.boost.org/libs/regex/doc/introduction.html into the main .cpp file. 3. Change all std::string to std::wstring, change all boost::regex to boost::wregex, and all "literal strings" to L"literal strings". 4. Set the "include" and "library" directories to point to the boost files 5. Initial build failed because "#error unknown CE Compiler" was tripped on line 133 of visualc.hpp. 6. I commented out the #error statement, and added the line "#define BOOST_COMPILER_VERSION 8.0" - Was this a mistake? 7. Next build, I got a fatal error: <locale>, which is #included in regex_workaround.hpp could not be found. 8. I "fixed" this by defining BOOST_NO_STD_LOCALE - because I noticed that this would cause the compiler to skip over the #include statement - Was this a mistake? 9. Now when I build I get 3 warnings on lines 52,53, and 54 of interlocked.hpp that _InterlockedIncrement, _IterlockedDecrement, and _InterlockedCompareExchange are not available as intrinsic functions. 10. I also get a number of unusual link errors: - an "unresolved external" link error for "_InterlockedDecrement" - doesn't make sense since InterlockedDecrement is a valid WinCE 5.0 function (and the correct headers and libraries are included in the build) - an "unresolved external" link error for "basic_regex< wchar_t, ." - a "machine type 'X86' conflicts with target machine type 'THUMB'" link error I am able to get around the first error by defining BOOST_USE_WINDOWS_H because I noticed that this would cause the compiler to use a different chunk of code (is this a mistake?). However, I am not certain what to do about the unresolved boost_regex, and target machine conflict errors. I believe both conflicts exist because I built the boost libraries for X86 deployment, and they do not link correctly for Win CE deployment. I built the libraries using bjam, according to this page: http://www.boost.org/more/getting_started.html. Frankly, I don't know how to build the libraries in such a way that they can target Win CE (assuming this is the issue). Alternatively, does anybody know if it is possible the use boost::regex by simply including the .h / .cpp files in the project itself, and building them along with the rest of the project? It is not clear to me if this is even possible. However, I would actually prefer this method. NOTE: Using these exact same steps I was able to build the project as a standard Win32 (that is, Non-Win CE) console project, and it ran correctly. This is true both with BOOST_NO_STD_LOCALE defined, and without it. I would appreciate any help or insight that you could provide. Thanks, Matt

2 1

lazy question: any good way to convert enums to human readable strings?
by Andrew Schweitzer 05 Sep '06

05 Sep '06

I have done very little searching, but it seemed worth just asking... sorry if this is newsgroup pollution: Does anyone have a favored way to convert large enums into stings suitable for printing? For example, we have an enum declared: enum eFurniture { eOT_chair = 1, eOT_stool =2, eOT_sofa =3, ... eOT_lounger = 1000, }; It would be really nice if there were a programmatic way to do something like: STRINGED_ENUM(eFurniture) E_STRING(eOT_chair, 1) E_STRING(eOT_stool, 2) E_STRING(eOT_sofa, 3) ... E_STRING(eOT_lounger, 1000) and then there would be a programmatic way to get both the enum and the string, such as eFurniture eTheAntique = eOT_stool; //and then... char* szTheAntique[128]; GetEnumString<eObjectTypes>(eTheAntique, szTheAntique); printf("the antique is %s\n", szTheAntique); //or maybe... char* szTheAntique = eFurniture_STRING_TABLE[eTheAntique]; Any recomendations? Thanks, Andy.

3 4

Questions regarding lambda expressions
by Matyas W Egyhazy 04 Sep '06

04 Sep '06

Hello, I am confused about why two certain lamba expressions work (on VC8) while two others do not. I do not profess to be any sort of expert in boost lambda expressions. This code is being executed in a function which is a friend of a template "takostack". Basically, this function deals with a member "contents_" that is a scoped_array of scoped_ptrs. It is supposed to iteratively call the << operator for the elements of contents_ scoped_array. template<typename O> std::ostream& operator<< (std::ostream& os, const takostack<boost::scoped_ptr<O> >& s) { /* Works, not sure why */ for (int i(0); i < s.top_; ++i) { os << *(&boost::scoped_ptr<O>::get, boost::lambda::_1)(s.contents_[i]) << " "; } /* Works, not sure why */ std::for_each(&s.contents_[0], &s.contents_[0] + s.top_, os << *(&boost::scoped_ptr<O>::get, boost::lambda::_1)(boost::lambda::_1) << " "); /* Does not work, don't know why std::for_each(&s.contents_[0], &s.contents_[0] + s.top_, os << *(boost::lambda::_1 ->* &boost::scoped_ptr<O>::get)(boost::lambda::_1) << " "); */ /* Does not work, don't know why std::for_each(&s.contents_[0], &s.contents_[0] + s.top_, os << *(boost::bind(&boost::scoped_ptr<O>::get, boost::lambda::_1)(boost::lambda::_1)) << " "); */ } Basically, I would like to understand why compilation succeeds without using bind, and fails when bind or the member pointer operator is used. The first failed example fails with: Error 131 error C2784: 'const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::other_action<Action>,boost::tuples::tuple<boost::lambda::lambda_functor<T>>>> boost::lambda::operator *(const boost::lambda::lambda_functor<T> &)' : could not deduce template argument for 'const boost::lambda::lambda_functor<T> &' from 'boost::lambda::detail::member_pointer_caller<RET,A,B>' d:\source\c\takostack\takostack\takostack.h 135 Error 132 error C2100: illegal indirection d:\source\c\takostack\takostack\takostack.h 135 Error 133 error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'boost::lambda::detail::member_pointer_caller<RET,A,B>' (or there is no acceptable conversion) d:\source\c\takostack\takostack\takostack.h 135 The second failed example fails with: Error 131 error C2248: 'std::basic_ios<_Elem,_Traits>::basic_ios' : cannot access private member declared in class 'std::basic_ios<_Elem,_Traits>' D:\Microsoft Visual Studio 8\VC\include\ostream 581 Thanks, Matt

2 2