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boost::pool base class new override
by Rodrigo Serafim 11 Sep '03

11 Sep '03

hi first question: where on earth was boost while I was doing my last year project? just thinking of the amount of trouble I could have saved if I knew about it... makes me bang my head against several walls ;) Well, I starter looking towards memory managment with other eyes after 90% of my bugs being directly originated form it. So after looking on the boost memory library a question popped: how can I use smart pointers and pool toguether. In particular intrusive pointers and/or pool, being the "and/or" essencial. If i have class C all made and ready and now I want it work with smart pointers i just have to make a base class RefCount, use multiple inheritance to contruct C_RC and i can have both things. Problem is, now i want to use it in pool too, but my base class RefCount calls delete. My solution; make yet another base class Poolable and override new and delete there. Well to my surprise it worked but only in very special cases. I have to use pool<> and cant use object_pool<C_RC_P> it crashes. Also it only works in MSVC6 in Release, in Debug it crashes. In a nutshell, my questions: - Is object_pool->malloc / free diferent in semantics from pool->malloc / free ? - I dont mind using pool<> but doing pool<>(sizeof(C_RC_P)) isnt that typesafe, can I make it? - Why does it crash in debug ? I send the code in attatchement. sorry abount the lengthy mail, too many question, too little time Thanks, Rodrigo Serafim

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RE: [Boost-users] tupl::get bag
by Ben Hutchings 11 Sep '03

11 Sep '03

nagual <nagual(a)promsoft.ru> wrote: > I write example code for tuples::tuple::get use tuples::tie. > If compile icl (Intel C++) v 7.1 or bcc32 (Borland) v 5.6.4 all ok, > but if compile g++ (GCC) v 3.2.2 or cl (MSVC) v 13.00.9466 - > i have eror. > ;-c > I need to use it in MSVC. > Help me! <snip> Older compilers performed only minimal parsing of templates before they were instantiated, but the standard says they must do more parsing. This requires that you tell them which dependent names (names of things that depend on a template parameter) are being used as type or template names. You need to put the keyword "template" in front of "get<num>" so that the compiler can parse it correctly. Ben.

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2D Shared Array
by Kevin J. Menard, Jr. 11 Sep '03

11 Sep '03

Hi, Is it possible to build a shared_array of shared_arrays? I would imagine there must be away, but I haven't been so successful at my attempts to find it :-/ I'm working on converting an existing project over to the boost smart pointer library. We've been using dynamically allocated 2D arrays to hold points in a matrix, and would like to take advantage of the automatic clean-up that the boost smart pointers can provide. That's why I would like to make a shared_array of shared_arrays of some data type. Any help would be appreciated. And if I'm approaching this all wrong, please let me know. I'm open to suggestions for other ideas, so long as the individual points can still be referenced in the form of: point[row][col]. Thanks, Kevin

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RE: [Boost-users] regex traits for multibyte strings
by Ben Hutchings 11 Sep '03

11 Sep '03

John Maddock <john(a)johnmaddock.co.uk> wrote: > > Is it possible to define a traits class for regex that supports > > multibyte strings? I am intending to do so, but I'm unsure that it > > is possible because there are several required functions that take a > > parameter of type char_type, which wouldn't really hold a complete > > character. > > I suspect that the answer is "no", can you not use wchar_t, and if > necessary convert your multi-byte sequence to wchar_t "atoms" on- > the-fly using iterator adapters? I'll give it a try.

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Boost.Threads, gcc and HP-UX
by Raul Huertas Diaz 11 Sep '03

11 Sep '03

I've noticed that in boost/config/platform/hpux.hpp this lines: #ifdef __GNUC__ // GNU C on HP-UX does not support threads (checked up to gcc 3.3) # define BOOST_DISABLE_THREADS #endif have been added in version 1.30.x. Please, ¿can someone explain me why? I have commented out the #define BOOST_DISABLE_THREADS and it works in gcc 3.2 with HP-UX 11.00. We do not use Jam to build the library, but I think that that doesn't matter. gcc --version: gcc (GCC) 3.2 Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. uname -a: HP-UX habana B.11.00 A 9000/778 2004658305 two-user license Thanks in advance, -- Raúl Huertas Díaz

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tuple many type
by nagual 11 Sep '03

11 Sep '03

Hello, All! tuple declared with 10 types in template parametrs: template < class T0 = null_type, class T1 = null_type, class T2 = null_type, class T3 = null_type, class T4 = null_type, class T5 = null_type, class T6 = null_type, class T7 = null_type, class T8 = null_type, class T9 = null_type> class tuple; make_tuple & tie declared with maximum 10 arguments. I want to use theirs more 10 arguments. How can i do it? With best regards, nagual. E-mail: nagual(a)promsoft.ru

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tupl::get bag
by nagual 11 Sep '03

11 Sep '03

Hello, All! I write example code for tuples::tuple::get use tuples::tie. If compile icl (Intel C++) v 7.1 or bcc32 (Borland) v 5.6.4 all ok, but if compile g++ (GCC) v 3.2.2 or cl (MSVC) v 13.00.9466 - i have eror. ;-c I need to use it in MSVC. Help me! ========tie.cpp======== #include <iostream> #include <boost/tuple/tuple.hpp> using std::cout; using std::endl; template <int num, typename T> void print(T t) { int i1 = 0, i2 = 0, i3 = 0; char c1 = '\0', c2 = '\0', c3 = '\0'; using boost::tuples::tie; tie(i1, i2, i3, c1, c2, c3).get<num>() = t; //Error in g++ & cl cout<<tie(i1, i2, i3, c1, c2, c3).get<num>()<<endl; //Error in g++ & cl } int main() { print<0>(0); print<1>(1); print<2>(2); print<3>('a'); print<4>('b'); print<5>('c'); return 0; } ========tie.cpp======== ========g++ command line====== c:\g++ -Iboost -otie tie.cpp ========g++ command line====== ========g++ output====== tie.cpp: In function `void print(T)': tie.cpp:12: parse error before `)' token tie.cpp:13: parse error before `)' token ========g++ output====== ========cl command line====== c:\cl /EHsc tie.cpp ========cl command line====== ========cl output====== tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(17) : see reference to function template instantiation 'void print<0,int>(T)' being compiled with [ T=int ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(18) : see reference to function template instantiation 'void print<1,int>(T)' being compiled with [ T=int ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(19) : see reference to function template instantiation 'void print<2,int>(T)' being compiled with [ T=int ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(20) : see reference to function template instantiation 'void print<3,char>(T)' being compiled with [ T=char ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(21) : see reference to function template instantiation 'void print<4,char>(T)' being compiled with [ T=char ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' tie.cpp(12) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(22) : see reference to function template instantiation 'void print<5,char>(T)' being compiled with [ T=char ] tie.cpp(12) : error C2059: syntax error : ')' tie.cpp(13) : error C2039: 'get' : is not a member of 'boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>' with [ T1=boost::tuples::detail::assign_to_pointee<int>, T2=boost::tuples::detail::assign_to_pointee<int>, T3=boost::tuples::detail::assign_to_pointee<int>, T4=boost::tuples::detail::assign_to_pointee<char>, T5=boost::tuples::detail::assign_to_pointee<char>, T6=boost::tuples::detail::assign_to_pointee<char>, T7=boost::tuples::null_type, T8=boost::tuples::null_type, T9=boost::tuples::null_type, T10=boost::tuples::null_type ] tie.cpp(13) : error C2059: syntax error : ')' ========cl output====== With best regards, nagual. E-mail: nagual(a)promsoft.ru

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Test
by Douglas Gregor 10 Sep '03

10 Sep '03

please ignore

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boost::gregorian::from_string( std::string ) fails
by Andre du Toit 10 Sep '03

10 Sep '03

Hi. Calling boost::gregorian::from_string with string value = 2003-07-28 produces a range exception, i.e. year supposedly does not fall inside the range covered by boost::gregorian::date!!!! Any suggestions? Greetings, Andre.

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Probem compiling and vectors
by Pat OBrien 10 Sep '03

10 Sep '03

Hi, Here what I've done: (1) Create prjmgr.pyste looks like: prjmgr = AllFromHeader("project.h") (2) Ran the following command: python C:\boost-1.30.2\libs\python\pyste\src\pyste.py --module=prjmgr prjmgr.pyste (3) The output from the above conatins the following type of errors: In file included from C:interface/IPssProject.h:15, from C:/inc/PrjManager/project.h:21: C:inc/interfaceTier/dataobjects/IPrgStructureObj.h:20: 'vector' is used as a type, but is not defined as a type. In file included from C:inc/interfaceTier/interface/IPssProject.h:17, from C:inc/PrjManager/project.h:21: C:inc/interfaceTier/dataobjects/ICrossRefQuery.h:44: 'vector' is used as a type, but is not defined as a type. C:inc/interfaceTier/dataobjects/ICrossRefQuery.h:47: 'vector' is used as a type, but is not defined as a type. Does anyone have any Idea what I missing or doing wrong ? Thanks Pat --------------------------------- Want to chat instantly with your online friends? Get the FREE Yahoo!Messenger

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