- Boost-users - lists.boost.org

Re: [Boost-users] Thread pool
by Sohail Somani 02 Nov '06

02 Nov '06

Ooh, there is a bunch of stuff in here. Thanks! > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Oliver.Kowalke(a)qimonda.com > Sent: Wednesday, November 01, 2006 9:37 PM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Thread pool > > Hello Sohail, > take a look at defer library in the vault (section 'Concurrent > Programming'). > Oliver

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Failure to compile the Boost library on Win XP with MinGW
by Colin Smith 02 Nov '06

02 Nov '06

Hi, I'm running into some large frustrations with trying to compile the Boost library on WinXP using MinGW 3.4.2 (I would like to compile it so that I can use the project_options). I can't get the library to compile and I'm finding that the opaqueness of the error messages and the lack of troubleshooting documentation are very well effectively preventing me from making progress. Either this gets resolved quickly, or I'll have to drop Boost from my project and implement the functionality I need with other libraries or by hand. It seems that every compilation rule inexplicably fails when I run the jam script. I'm using the command "bjam -sTOOLS=mingw install". All the compiling rules fail and then the header files get copied. A sample of the failure messages are below. Unfortunately, the error messages do not give me any useful clues as to what is going wrong. I've also tried the command "bjam -sTOOLS=mingw stage" and received equally unimpressive results. Any help on this would be very much appreciated. -- Colin gcc-C++-action bin\boost\libs\date_time\build \boost_date_time.dll\mingw\debug\gr eg_month.obj g++: no input files "c:\MinGW\bin\g++" -c -Wall -ftemplate-depth-255 -DBOOST_ALL_DYN_LINK=1 -D USE_DATE_TIME_PRE_1_33_FACET_IO -g -O0 -fno-inline -mno-cygwin -I"bin\boost\lib s\date_time\build" -I "c:\MinGW\include\" -I "C:\boost_1_33_1" -o "bin\boost\lib s\date_time\build\boost_date_time.dll\mingw\debug\greg_month.obj" "C:\boost_1_33 _1\libs\date_time\build\../src/gregorian/greg_month.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\ming w\debug\greg_month.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\gr eg_weekday.obj g++: no input files "c:\MinGW\bin\g++" -c -Wall -ftemplate-depth-255 -DBOOST_ALL_DYN_LINK=1 -D USE_DATE_TIME_PRE_1_33_FACET_IO -g -O0 -fno-inline -mno-cygwin -I"bin\boost\lib s\date_time\build" -I "c:\MinGW\include\" -I "C:\boost_1_33_1" -o "bin\boost\lib s\date_time\build\boost_date_time.dll\mingw\debug\greg_weekday.obj" "C:\boost_1_ 33_1\libs\date_time\build\../src/gregorian/greg_weekday.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\ming w\debug\greg_weekday.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\da te_generators.obj g++: no input files "c:\MinGW\bin\g++" -c -Wall -ftemplate-depth-255 -DBOOST_ALL_DYN_LINK=1 -D USE_DATE_TIME_PRE_1_33_FACET_IO -g -O0 -fno-inline -mno-cygwin -I"bin\boost\lib s\date_time\build" -I "c:\MinGW\include\" -I "C:\boost_1_33_1" -o "bin\boost\lib s\date_time\build\boost_date_time.dll\mingw\debug\date_generators.obj" "C:\boost _1_33_1\libs\date_time\build\../src/gregorian/date_generators.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\ming w\debug\date_generators.obj... ...skipped <@boost!libs!date_time!build\boost_date_time.dll\mingw\debug>boost_da te_time-mgw-d-1_33_1.dll for lack of <@boost!libs!date_time!build\boost_date_tim e.dll\mingw\debug >greg_month.obj... ...skipped <@boost!libs!date_time!build\boost_date_time.dll\mingw\debug>boost_da te_time-mgw-d-1_33_1.lib for lack of <@boost!libs!date_time!build\boost_date_tim e.dll\mingw\debug>greg_month.obj... ...skipped <@boost!lib>boost_date_time-mgw-d-1_33_1.dll for lack of <@boost!libs !date_time!build\boost_date_time.dll\mingw\debug>boost_date_time-mgw-d-1_33_1.dl l... ...skipped <@boost!lib>boost_date_time-mgw-d-1_33_1.lib for lack of <@boost!libs !date_time!build\boost_date_time.dll\mingw\debug>boost_date_time-mgw-d-1_33_1.li b... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\th reading-multi\greg_month.obj g++: no input files "c:\MinGW\bin\g++" -c -Wall -ftemplate-depth-255 -DBOOST_ALL_DYN_LINK=1 -D USE_DATE_TIME_PRE_1_33_FACET_IO -g -O0 -fno-inline -mthreads -mno-cygwin -I"bin \boost\libs\date_time\build" -I "c:\MinGW\include\" -I "C:\boost_1_33_1" -o "bin \boost\libs\date_time\build\boost_date_time.dll\mingw\debug\threading-multi\greg _month.obj" "C:\boost_1_33_1\libs\date_time\build\../src/gregorian/greg_month.cp p" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\ming w\debug\threading-multi\greg_month.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\th reading-multi\greg_weekday.obj g++: no input files "c:\MinGW\bin\g++" -c -Wall -ftemplate-depth-255 -DBOOST_ALL_DYN_LINK=1 -D USE_DATE_TIME_PRE_1_33_FACET_IO -g -O0 -fno-inline -mthreads -mno-cygwin -I"bin \boost\libs\date_time\build" -I "c:\MinGW\include\" -I "C:\boost_1_33_1" -o "bin \boost\libs\date_time\build\boost_date_time.dll\mingw\debug\threading-multi\greg _weekday.obj" "C:\boost_1_33_1\libs\date_time\build\../src/gregorian/greg_weekda y.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\ming w\debug\threading-multi\greg_weekday.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\th reading-multi\date_generators.obj g++: no input files -- ********************************* Colin Smith smithco(a)gmail.com *********************************

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[filesystem] unable to parse file path
by Küppers, Ben 02 Nov '06

02 Nov '06

Greetings, I posted this topic on the boost mailing list but believe this is a better place to discuss it. I am trying to write some cross-platform code that processes a Windows provided file path. The file path is of the form .\filename.ext (i.e. Windows style relative to current directory). Using the construct boost::filesystem::path path( ".\\filename.ext", boost::filesystem::native ) I have been able to successfully parse this path on Windows. However, I can't seem to find a construct that yields similar results on Linux. I have tried using default and explicit name checkers which result in either a filesystem_error exception or the obscurely named hidden file .\filename.ext. The library contains the logic to do this right otherwise the Windows version wouldn't work either. However, it seems the necessary code is excluded from compilation for systems other than Windows. I am trying to understand why this decision is made at compile time and is not accessible at runtime. Ideally, I would like to be able to tell the path class to use Windows path parsing (regardless of the platform the app is running on). Something in the style of: boost::filesystem::path path( ".\\filename.ext", boost::filesystem::windows ) There is a windows_name checker but it doesn't support the ".". Neither would the library be able to parse the path because of the compile-time exclusion mentioned above. At the moment, I don't see any other option than to process the path string manually before passing it to the path constructor (kind-a defeats the whole purpose of using this class). Anybody have any ideas? Also, am I really trying to do something that exotic or is this library missing some essential functionality? Ben This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.

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Re: [Boost-users] Boost ROCKS !!!!!
by Sohail Somani 02 Nov '06

02 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Nindi Singh > Sent: Wednesday, November 01, 2006 5:06 PM Dude, please stop posting html email :)

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Re: [Boost-users] Boost ROCKS !!!!!
by Nindi Singh 02 Nov '06

02 Nov '06

OK did it . <Phactory.h> #ifndef PHACTORY_HEADER_GUARD #define PHACTORY_HEADER_GUARD #include<string> #include<map> #include<cassert> #include<boost/shared_ptr.hpp> #include<boost/variant.hpp> #include<boost/utility.hpp> #include<boost/static_assert.hpp> #include<boost/mpl/size.hpp> #include<boost/mpl/list.hpp> #include<boost/mpl/at.hpp> template<unsigned long i> struct unsigned_long {enum {value=i};}; template<class BaseClass> struct PhRegistraBase { typedef typename boost::make_variant_over<typename BaseClass::variant_type_list::type>::type variant; typedef std::map<std::string,variant> ParameterMap; virtual boost::shared_ptr<BaseClass> RetrieveObject(const std::string &theKey,const ParameterMap& theMap )const=0; }; template<class BaseClass> class Phactory { public: typedef typename boost::make_variant_over<typename BaseClass::variant_type_list::type>::type variant; typedef std::map<std::string,variant> ParameterMap; bool Register(const std::string &theKey, const PhRegistraBase<BaseClass>* theRegistra){ return theInnerMap.insert(InnerMap::value_type(theKey,theRegistra)).second; } boost::shared_ptr<BaseClass> RetrieveObject(const std::string &id, const ParameterMap & theMap)const { InnerMapIterator theIterator (theInnerMap.find(id)); if(theIterator==theInnerMap.end())return boost::shared_ptr<BaseClass>(static_cast<BaseClass *>(0)); return theIterator->second->RetrieveObject(id,theMap); } private: typedef typename std::map<std::string,const PhRegistraBase<BaseClass> *> InnerMap; typedef typename std::map<std::string,const PhRegistraBase<BaseClass> *>::const_iterator InnerMapIterator; std::map<std::string,const PhRegistraBase<BaseClass> *> theInnerMap; }; #define CPARAM_1 boost::get<const boost::mpl::at_c<signature,0>::type &>(theMap.find(theVarNames[0])->second) #define CPARAM_2 CPARAM_1, boost::get<const boost::mpl::at_c<signature,1>::type &>(theMap.find(theVarNames[1])->second) #define CPARAM_3 CPARAM_2, boost::get<const boost::mpl::at_c<signature,2>::type &>(theMap.find(theVarNames[2])->second) #define CPARAM_4 CPARAM_3, boost::get<const boost::mpl::at_c<signature,3>::type &>(theMap.find(theVarNames[3])->second) #define CPARAM_5 CPARAM_4, boost::get<const boost::mpl::at_c<signature,4>::type &>(theMap.find(theVarNames[4])->second) #define CPARAM_6 CPARAM_5, boost::get<const boost::mpl::at_c<signature,5>::type &>(theMap.find(theVarNames[5])->second) #define CPARAM_7 CPARAM_6, boost::get<const boost::mpl::at_c<signature,6>::type &>(theMap.find(theVarNames[6])->second) #define CPARAM_8 CPARAM_7, boost::get<const boost::mpl::at_c<signature,7>::type &>(theMap.find(theVarNames[7])->second) #define CPARAM_9 CPARAM_8, boost::get<const boost::mpl::at_c<signature,8>::type &>(theMap.find(theVarNames[8])->second) #define CPARAM_10 CPARAM_9, boost::get<const boost::mpl::at_c<signature,9>::type &>(theMap.find(theVarNames[9])->second) #define INNER_RETRIVE_OBJECT(Nb) \ template<> boost::shared_ptr<BaseClass> InnerRetrieveObject< Nb >(const std::string &theKey,const ParameterMap& theMap)const{ \ CheckMap(theMap); \ return boost::shared_ptr<BaseClass>(new DerivedClass( CPARAM_##Nb ) \ ); \ } template < class BaseClass, class DerivedClass > class PhRegistra:public PhRegistraBase<BaseClass>{ public: typedef typename DerivedClass::constructor_signature_typelist signature; typedef typename boost::make_variant_over<typename BaseClass::variant_type_list::type>::type variant; typedef std::map<std::string,variant> ParameterMap; enum {ssize = boost::mpl::size<signature>::value}; template<unsigned long i> PhRegistra(const std::string &theKey, const char *theVariableNames[],const unsigned_long<i> *p=0) { BOOST_STATIC_ASSERT(i==ssize); // Must have ONE variable name for each paramter of the constructor for(unsigned long i(0);i<ssize;++i) theVarNames[i]=std::string(theVariableNames[i]); Singleton<Phactory<BaseClass> >::instance().Register(theKey,this); } boost::shared_ptr<BaseClass> RetrieveObject(const std::string &theKey,const ParameterMap& theMap)const{ return InnerRetrieveObject<ssize>(theKey,theMap); } template<int i> boost::shared_ptr<BaseClass> InnerRetrieveObject(const std::string &theKey,const ParameterMap&)const; INNER_RETRIVE_OBJECT(1) INNER_RETRIVE_OBJECT(2) INNER_RETRIVE_OBJECT(3) INNER_RETRIVE_OBJECT(4) INNER_RETRIVE_OBJECT(5) INNER_RETRIVE_OBJECT(6) INNER_RETRIVE_OBJECT(7) INNER_RETRIVE_OBJECT(8) INNER_RETRIVE_OBJECT(9) INNER_RETRIVE_OBJECT(10) private: void CheckMap(const ParameterMap& theMap)const { assert(theMap.size()==ssize); for(unsigned long i(0);i<ssize;++i)assert(theMap.find(theVarNames[i])!=theMap.end()); } std::string theVarNames[ssize]; }; #define PARAM_NAMES(n) n , static_cast<unsigned_long<sizeof(n)/sizeof(char*)> *>(0) #endif ----------------- end of Phactory.h <main,cpp> #include<vector> #include<iostream> #include"Phactory.h" using namespace std; template<class Object> //Quick liitle singletone just to demonstrate class Singleton { public: static Object & instance(){static Object theObject;return theObject;} virtual ~Singleton(){} private: Singleton(); Singleton(const Singleton<Object> & illegal); Singleton<Object> & operator=(const Singleton<Object> & illegal){return *this;} }; struct Dummy{}; struct Base { typedef boost::mpl::list<double,int,unsigned long,std::string,std::vector<double>,float,Dummy> variant_type_list; Base(){} virtual void f()const=0; virtual ~Base(){}; }; struct Derived :public Base { typedef boost::mpl::list<double,int,std::string,std::vector<double> > constructor_signature_typelist; Derived(double x_,int n_,const std::string &s_,const std::vector<double>&v_): x(x_),n(n_),s(s_),v(v_){} virtual void f()const{ cout << "My Double is " << x << "\n" << "My int is " << n << "\n" << "My String is " << s << "\n" << "My Vector Size is " << v.size() << "\n"; } private: double x; int n; std::string s; std::vector<double> v; }; namespace { const char * theVarNames[]={"Double","Int","String","Vector"}; PhRegistra<Base,Derived> thePhRegistra(std::string("DerivedObject"),PARAM_NAMES(theVarNames)); } int main() { std::map<std::string,typename boost::make_variant_over<typename Base::variant_type_list::type>::type> theMap; theMap["Double"]=1.0; theMap["Int"]=1; theMap["String"]="hello"; theMap["Vector"]=std::vector<double>(10); boost::shared_ptr<Base> thePtrSM(Singleton<Phactory<Base> >::instance().RetrieveObject("DerivedObject",theMap)); thePtrSM->f(); } ----- Original Message ---- From: Nindi Singh <nindi73(a)yahoo.co.uk> To: boost-users(a)lists.boost.org Sent: Wednesday, 1 November, 2006 8:59:31 PM Subject: Re: [Boost-users] Boost ROCKS !!!!! Cool ! Actualy I am now working another factory implementation. In the new implementation, the Base Class will hold a typedef for a Boost Variant, and then the derived objects can be instantiated by the factory by being given a std::map of the variants and stripping out the values to make a call to the constructor of the derived class. The ONLY intrusion on the classes would be a typelist in the Base class to type the appropriate Boost::Variant and a typelist in the derived class identifing the signature of the constructor to be called by the factory, similar to the factory i have posted previously. The MPL really is VERY cool, and I think I have JUST touched the surface !!!. In fact I put my order in for 'C++ Template Metaprogramming: Concepts, Tools, and Techniques from Boost and Beyond' at Amazon this afternoon !!!! ----- Original Message ---- From: Sohail Somani <s.somani(a)fincad.com> To: boost-users(a)lists.boost.org Sent: Wednesday, 1 November, 2006 8:46:28 PM Subject: Re: [Boost-users] Boost ROCKS !!!!! > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Nindi Singh > > For the past few months I have been making more and more use > of Boost, in fact I would say becoming more and more reliant > on Boost, every so often introducing myslef to a new library. > But discovering the MPL, well that was awsome. The first time > I applied it was to implement a factory. I would NEVR have > though of doing it this way WITHOUT the MPL. Any comments on > my use ( or indeed abuse !) of Boost would be more than apprieciated. [snip code] Actually, I've been thinking of doing something similar and I am also interested in what people say! PS: Boost does rock _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users All new Yahoo! Mail "The new Interface is stunning in its simplicity and ease of use." - PC Magazine _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Send instant messages to your online friends http://uk.messenger.yahoo.com

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Re: [Boost-users] Boost ROCKS !!!!!
by Nindi Singh 01 Nov '06

01 Nov '06

Cool ! Actualy I am now working another factory implementation. In the new implementation, the Base Class will hold a typedef for a Boost Variant, and then the derived objects can be instantiated by the factory by being given a std::map of the variants and stripping out the values to make a call to the constructor of the derived class. The ONLY intrusion on the classes would be a typelist in the Base class to type the appropriate Boost::Variant and a typelist in the derived class identifing the signature of the constructor to be called by the factory, similar to the factory i have posted previously. The MPL really is VERY cool, and I think I have JUST touched the surface !!!. In fact I put my order in for 'C++ Template Metaprogramming: Concepts, Tools, and Techniques from Boost and Beyond' at Amazon this afternoon !!!! ----- Original Message ---- From: Sohail Somani <s.somani(a)fincad.com> To: boost-users(a)lists.boost.org Sent: Wednesday, 1 November, 2006 8:46:28 PM Subject: Re: [Boost-users] Boost ROCKS !!!!! > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Nindi Singh > > For the past few months I have been making more and more use > of Boost, in fact I would say becoming more and more reliant > on Boost, every so often introducing myslef to a new library. > But discovering the MPL, well that was awsome. The first time > I applied it was to implement a factory. I would NEVR have > though of doing it this way WITHOUT the MPL. Any comments on > my use ( or indeed abuse !) of Boost would be more than apprieciated. [snip code] Actually, I've been thinking of doing something similar and I am also interested in what people say! PS: Boost does rock _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ___________________________________________________________ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html

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Re: [Boost-users] Boost ROCKS !!!!!
by Sohail Somani 01 Nov '06

01 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Nindi Singh > > For the past few months I have been making more and more use > of Boost, in fact I would say becoming more and more reliant > on Boost, every so often introducing myslef to a new library. > But discovering the MPL, well that was awsome. The first time > I applied it was to implement a factory. I would NEVR have > though of doing it this way WITHOUT the MPL. Any comments on > my use ( or indeed abuse !) of Boost would be more than apprieciated. [snip code] Actually, I've been thinking of doing something similar and I am also interested in what people say! PS: Boost does rock

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Lambda probs
by Noah Roberts 01 Nov '06

01 Nov '06

My statement: T::iterator it = std::find_if(container.begin(), container.end(), l::bind(&typename T::value_type::GetName, l::_1) != l::constant(0) && !l::bind(stricmp, l::bind(&typename T::value_type::GetName, l::_1), l::var(name))); GetName() returns a char*. I get errors about there being no != or ! for const boost::lambda::lambda_functor<T> I also tried == 0 and == constant(0) for the second part. More detailed error follows: 1>c:\documents and settings\nroberts\my documents\visual studio 2005\projects\pipeflo refactor\code\clist_util.h(60) : error C2678: binary '!=' : no operator found which takes a left-hand operand of type 'const boost::lambda::lambda_functor<T>' (or there is no acceptable conversion) 1> with 1> [ 1> T=boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<char *(__thiscall NamedObject::* const )(void),const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>> 1> ] 1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\guiddef.h(197): could be 'int operator !=(const GUID &,const GUID &)' 1> while trying to match the argument list '(const boost::lambda::lambda_functor<T>, boost::lambda::lambda_functor<T>)' 1> with 1> [ 1> T=boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<char *(__thiscall NamedObject::* const )(void),const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>> 1> ] 1> and 1> [ 1> T=boost::lambda::identity<const int> 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\pipeflo refactor\code\clist.h(358) : see reference to function template instantiation 'bool NameInUse<CList_tmpl<VALUE_TYPE>>(T &,const char *,DLinkObject *,HWND)' being compiled 1> with 1> [ 1> VALUE_TYPE=DLinkObject, 1> T=CList_tmpl<DLinkObject> 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\pipeflo refactor\code\clist.h(357) : while compiling class template member function 'bool CList_tmpl<VALUE_TYPE>::NameInUse(char *,VALUE_TYPE *,HWND)' 1> with 1> [ 1> VALUE_TYPE=DLinkObject 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\pipeflo refactor\code\lineupchangeable.h(13) : see reference to class template instantiation 'CList_tmpl<VALUE_TYPE>' being compiled 1> with 1> [ 1> VALUE_TYPE=DLinkObject 1> ]

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microsec_clock not recognized in VC8
by Cheng, Victor S 01 Nov '06

01 Nov '06

> I'm using 1.33.1 date_time library, but ran into a problem with > microsec_clock. It's not recognized in VC8: > > error C2653: 'microsec_clock' : is not a class or namespace name > > If I change it to second_clock, then it's fine. Is this a known > problem for VC8? > ---- Here is my test code -------- #include "boost/date_time/posix_time/posix_time.hpp" #include <iostream> int main() { using namespace boost::posix_time; using namespace boost::gregorian; ptime now = microsec_clock::local_time(); //second_clock::local_time(); ... } ----- Here is how I built the library ---- "C:\Program Files\Microsoft Visual Studio 8"\vc\bin\vcvars32.bat c: cd \dev\boost_1_33_1 bjam -sTOOLS=vc-8_0 --prefix=C:\Dev\Boost --without-python --builddir=build install ------------------------------------------------------------------------------ This message is intended only for the personal and confidential use of the designated recipient(s) named above. If you are not the intended recipient of this message you are hereby notified that any review, dissemination, distribution or copying of this message is strictly prohibited. This communication is for information purposes only and should not be regarded as an offer to sell or as a solicitation of an offer to buy any financial product, an official confirmation of any transaction, or as an official statement of Lehman Brothers. Email transmission cannot be guaranteed to be secure or error-free. Therefore, we do not represent that this information is complete or accurate and it should not be relied upon as such. All information is subject to change without notice. -------- IRS Circular 230 Disclosure: Please be advised that any discussion of U.S. tax matters contained within this communication (including any attachments) is not intended or written to be used and cannot be used for the purpose of (i) avoiding U.S. tax related penalties or (ii) promoting, marketing or recommending to another party any transaction or matter addressed herein.

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Re: [Boost-users] [boost.serialization] serialization crash
by RIVASSEAU Jean Noel 01 Nov '06

01 Nov '06

I've had the same problems. The problem is with the bool field. Code restoring the archive crashes if the bool stored in the archive is not equal to 0 or 1. But since you did not write a constructor in the Obj class, the boolean will actually be initialized with anything( eg, read 14675002 for example), and will be serialized that way in the archive since it seems the serialization code does not check if the bool is equal to 0 or 1 (only the restoration code). So, the solution is to initialize your boolean correctly and be very careful whenever you use booleans. However, I think the Serialization code should be fixed (remove the check for 0 or 1, it probably does more bad than good. Jean-Noël ________________________________ De : boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] De la part de Pavlo Korzhyk Envoyé : jeudi 26 octobre 2006 16:09 À : boost-users(a)lists.boost.org Objet : [Boost-users] [boost.serialization] serialization crash The following code crashes under cygwin+boost1.33 and under mingw+boost1.33 I create text archive in a file, and then serialization crashes when restoring object from that archive. The problem seem to be with bool field, if I replace bool x; with int x; in the class Obj implementation, everything runs fine. Is this a bug in serialization code? #include <iostream> #include <sstream> #include <fstream> #include <vector> #include <map> using namespace std; #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/serialization/vector.hpp> #include <boost/serialization/map.hpp> using namespace boost; using namespace boost::serialization; class Obj { friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & x; } public: bool x; }; class Item; class Cheq : public Obj{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & boost::serialization::base_object<Obj>(*this); ar & v; ar & id; } public: vector<Item> v; int id; Cheq(){} }; class Item{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & a; ar & s; } public: int a; string s; }; class Row{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & m1; ar & m2; } public: map<string,string> m1,m2; }; class Data{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & a; ar & m; ar & cheque; } public: int a; map<string,string> m; map<int,Cheq> cheque; }; BOOST_CLASS_TRACKING(Data, boost::serialization::track_never) #include "boost/serialization/export.hpp" BOOST_CLASS_EXPORT(Data); BOOST_CLASS_EXPORT(Cheq); BOOST_CLASS_EXPORT(Item); int main(int argc, char** argv) { Data d; d.cheque[0]=Cheq(); //if(argc>1 && argv[1][0]=='1') { ofstream os("datfile"); boost::archive::text_oarchive oar(os); oar << d; } //if(argc>1 && argv[1][0]=='2') { ifstream is("datfile"); boost::archive::text_iarchive iar(is); iar >> d; } cout << "without crash\n"; return 0; } -- WBR, Pavlo Korzhyk ICQ#155870780

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