October 2004 - Boost-users - lists.preview.boost.org

Compilation problem with boost on SunCC (Forte 6.2 & 8)
by Puverle, Tomas (IT) 05 Oct '04

05 Oct '04

A repost, since no answer to my previous mail. > > Please find attached a small program and a the resulting > compilation > > errors on SunCC. > > This occurs in iterator_facade.hpp, operator != (), calling to > > interator_core_access::equal. I have tracked this down to the > > following problem: > > > > f(mpl::true_); > > f(mpl::false_); > > > > f(is_convertible<>()); //will not work > > > > is_convertible<> derives from mpl::bool<>, however it seems > that a bug > > in the compiler prevents it from converting to > mpl::true_/mpl::false_ > > in the above scenario (and in the program attached) > > > > A workaround for this is to change it to the following: > > > > f(mpl::true_); > > f(mpl::false_); > > > > f(mpl::bool_<is_convertible<>::value>()); > > > > Presumably this will be present in other places but this is > the only > > one our developers have hit so far. > > > > Thanks, > > > > Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited.

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uBLAS problem under Borland C++builder
by 徐亮 05 Oct '04

05 Oct '04

Hi Boost people I'm starting with uBLAS matrix class under Borland C++ builder. I copied a sample from boost document and complied it. There are always mistakes in "traits.hpp". I tried again in VC and no problem occured. I just wonder what's wrong with BC. I have copied the boost dir into BC's Include dir and have added it in Project->Options->Directories. Here's my copied code: #include <boost/numeric/ublas/matrix.hpp> #include <boost/numeric/ublas/io.hpp> int main () { using namespace boost::numeric::ublas; matrix<double> m (3, 3); for (unsigned i = 0; i < m.size1 (); ++ i) for (unsigned j = 0; j < m.size2 (); ++ j) m (i, j) = 3 * i + j; std::cout << m << std::endl; } Thanx 　　　　　　　

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Problem compiling Windows C++ code wit regex
by arno.schaefer＠sqs.de 05 Oct '04

05 Oct '04

Hi all, I try to compile some older C++ Code with your RegEx class and got in some source code problems with some ambiguity I believe between the std and the global namespace. I followed the include hierarchie starting from "boost/regex.h" down to "boost\config\stdlib\dinkumware.hpp" and here was my first problem, why this stdlib implementation was selected, I don't think, that this is the normal implementation for "VC++ 6.0 SP6" what I am using!? The errors I got are located in some windows system header and look like this only in one source file: : d:\programme\microsoft visual studio\vc98\include\objidl.h(9901) : error C2668: 'memset' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(435) : error C2668: 'memcmp' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(459) : error C2668: 'memcmp' : ambiguous call to overloaded function Error executing cl.exe. Any idea what kind of define can cause this problem? I visit every included headerfile and look also in the expanded preprocessor code (*.i file) and didn't see exactly what happend, so have somebody an idea? Thanks for your help Arno

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RE: [Boost-users] uBLAS lapack bindings
by Foster, Gareth 05 Oct '04

05 Oct '04

Excuse the slight drift offtopic, but is this part of boost intended for 3d maths/graphics? -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Daniel L Elliott Sent: 04 October 2004 19:38 To: boost-users(a)lists.boost.org Subject: [Boost-users] uBLAS lapack bindings Hello, I have a question about using uBLAS/LAPACK bindings on AIX 5.1 and VA6. I am doing something like the following: matrix<double> matrixTwo(200,200); identity_matrix<double> identMatrix = identity_matrix<double>(200); int inverseInfo = gesv(matrixTwo,identMatrix); I am getting the following errors: line 102.36: 1540-0130 (S) "matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::ublas::r ow_major,boost::numeric::ublas::unbounded_array<double,std::a\ llocator<double> > > >::size1" is not declared "/npd/delliott/boost/numeric/bindings/traits/matrix_traits.hpp", line 102.7: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::traits::matrix_size1<boost::numeric::ublas::matri x<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_a rray<double,std::allocator<double> > > >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double,std::allocator<double> > > &)". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 135.40: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double, std::allocator<double> > > &, identity_matrix<double> &)". "test.cpp", line 120.21: 1540-0700 (I) The previous message was produced while processing "main()". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 99.9: 1540-0038 (S) The name "typename traits::matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::u blas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator <double> > >>::matrix_structure" is not a type. "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 95.9: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double>,boost::numeric::bindings::t raits::detail::array<int> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double,std::allocator<double> > > &, array<int> &, identity_matrix<do...". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 137.16: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double\ ,std::allocator<double> > > &, identity_matrix<double> &)". As I understand it, I can simply pass the uBLAS matrix types and the traits/lapack .hpp files will take care of the rest. Any light that could be shed upon this subject would be of great assistance. By the way, I would have happily send this to uBLAS-dev, but have not been admitted yet :( Thank you, Dan _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] boost install with gentoo issue?
by Foster, Gareth 05 Oct '04

05 Oct '04

I used boost via the fedora rpms, and that was okay, maybe that will help you narrow down the problem (ie maybe it's a gentoo thing rather than a packaged boost thing). Cheers mate Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of dave(a)superelite.net Sent: 05 October 2004 04:59 To: boost-users(a)lists.boost.org Subject: [Boost-users] boost install with gentoo issue? Well, more likely my mistake, ive been up awhile.. I installed the boost libs onto my gentoo machine with emerge. I then added -lboost_regex to my linker flags..thats it. When I run my app, it hangs, I think when waiting on pulling data of off a UDP socket. Though I cant tell, I'm about to crash and its been one of those days. But I do know everything is back to normal when I take -lboost_regex out of the flags again. I know I'm awfully vague due to lazy/tiredness, but does this ring a bell with anyone? I've installed boost the traditional way (bjam) on other linux distros before without any issue, but ive never tried emerge before. I dont know if this has something to do with it, or i am somehow missing something really obvious.. Thanks for bearing with me, Dave _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Re: Problem compiling Windows C++ code wit regex
by arno.schaefer＠sqs.de 05 Oct '04

05 Oct '04

> afaik, that company (dimkumwhatever) wrote the MS stl library ... > Thanks for that information Gareth, I haven't noticed that til today, but I have still the problem with the "ambiguity" compilation error in the MS system header... regards Arno

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RE: [Boost-users] Problem compiling Windows C++ code wit regex
by Foster, Gareth 04 Oct '04

04 Oct '04

afaik, that company (dimkumwhatever) wrote the MS stl library ... -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of arno.schaefer(a)sqs.de Sent: 04 October 2004 15:37 To: boost-users(a)lists.boost.org Subject: [Boost-users] Problem compiling Windows C++ code wit regex Hi all, I try to compile some older C++ Code with your RegEx class and got in some source code problems with some ambiguity I believe between the std and the global namespace. I followed the include hierarchie starting from "boost/regex.h" down to "boost\config\stdlib\dinkumware.hpp" and here was my first problem, why this stdlib implementation was selected, I don't think, that this is the normal implementation for "VC++ 6.0 SP6" what I am using!? The errors I got are located in some windows system header and look like this only in one source file: : d:\programme\microsoft visual studio\vc98\include\objidl.h(9901) : error C2668: 'memset' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(435) : error C2668: 'memcmp' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(459) : error C2668: 'memcmp' : ambiguous call to overloaded function Error executing cl.exe. Any idea what kind of define can cause this problem? I visit every included headerfile and look also in the expanded preprocessor code (*.i file) and didn't see exactly what happend, so have somebody an idea? Thanks for your help Arno

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C++ Parsing - oops
by Foster, Gareth 03 Oct '04

03 Oct '04

Hello John, Joel, I didn't mean to knock your work with that last email John, it might have come across badly, it was meant more as a compliment to spirit and a reference to the fact that it 'appears' to fit the bill for what I want to do better, not to bash regex, I like regex too. For the record it needn't be 'perfect' indexing of the C++ code, I don't mind if I get two hits for the same classname for example. I used regex for a tool to index the C++ and C files themselves, so I could quickly search for file names using regular expressions, it works great! So thank you both, no offence caused I hope. So, will spirit be the best way then? Glad to hear its already a part of boost btw, congratulations mate. Cheers! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of John Maddock Sent: 30 September 2004 11:33 To: Subject: Re: [Boost-users] Boost:regex and C++ Parsing - Clarification > Thank you Caleb and Hartmut for your replies. You both seem to think regex > is a bad way to go, I will explain better what I want to write just to be > clear. > > I want to write a tool (cli probably) where I can say, here you go, here > is > a large folder full of code, go and parse it. I will store the results in > XML format somewhere, then, I can do say, "<myapp> class someclass" and > the > program will go and find where that class is declared/defined using its > database, saving me headache. > > So I thought I could use one of the C++ expat wrappers, and boost regex > looked powerful enough to do the parsing if only I were handy enough with > regular expression syntax. > > Anyway, I don't know if that better explanation will make any difference > to > you recommendations, I look forward to reading you opinions. > > Oh, and the example I looked at is here Hartmut: > http://boost.org/libs/regex/example/snippets/regex_search_example.cpp - > that > is what got me thinking I might actually be able to take on this > challenge. It depends what you want to do: if you want to use a "real" C++ parser then you will also have to preprocess the code (including the includes) and then parse the code. In theory this gives you a "perfect" result, but only if you know what include paths to use, and what predefined macros should be set (think about conditional code blocks). Regexes on the other hand, don't require you to preprocess the code, but can get confused by macros and the like. So you have to choose the way that best meets your expectations, and live with the defects either which way ;-) To solve your problem BTW, why not scan through the file for line starts (keeping count obviously!), and at each line start see if it's also the start of the regex you are interested in (one that matches a class definition for example), if you do this don't forget to either: prefix your expression with \A or Pass the match_continuous flag to regex_search, Either will anchor the search at the start of the line you are checking, and prevent the whole text being searched. John. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Re: Boost:regex and C++ Parsing - Spirit!
by Foster, Gareth 03 Oct '04

03 Oct '04

Wow, I just read through the 1st few pages of the spirit docs, and I can safely say, that is as close to naked women as C++ code will ever be, its such a sexy idea. One library, and you can parse any sort of config file, code or anything! Amazing. Well, any lingering desire to use regex for my pet project has now left the building, I can't wait to have a play with spirit. When will it be a part of boost? Is it worth installing it seperately (I'd hate to do that and have a new boost appear the day after). Also, reading this made up my mind that I should get a nice magazine about STL and C++ matters, can anyone recommend one (UK based preferable, but all sugestions welcome). Interetsing stuff, thank you all! Gaz

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boost::multi_array class member
by Sergio Ferrari 02 Oct '04

02 Oct '04

Hi to all. Sorry for my English. I'm trying to use a boost::multi_array as a private member of a class. How I can specifying the number of elements for every dimensions into the constructor? #include <iostream> #include "boost/multi_array.hpp" using namespace std; typedef boost::multi_array<int, 2> table; class X { public: X(); ~X(){}; // ... void do_something(); private: table tab; boost::array<table::index, 2> dims; }; X::X() { dims = {{3, 5}}; // fails table(dims); } int main() { X x; x.do_something(); system("PAUSE"); return 0; } Thanks to all. Sergio --------------------------------- Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish.

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