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regex_match problem
by Wilkinson, John 25 May '05

25 May '05

I am trying to use regex to parse NMEA messages. I am new to regex and regular expressions in general, and am having problems getting regex_match to do what I want. The code below demonstrates the problem. I was hoping it would return: 1 1.2,3.4 2 1.2 3 3.4 instead it returns: 1 1.2,3.4 2 1.2 3 1.2 4 5 6 1.2 7 3.4 8 3.4 9 10 11 3.4 thanks John W. const string float_regex = "([+-]?(([\\d]+\\.?)|(\\.[\\d]+)|([\\d]+\\.[\\d]+))){0,1}"; const regex e( float_regex + "," + float_regex ); string str = "1.2,3.4"; smatch match; bool result = regex_match( str, match, e ); if ( result ) { for( int i = 0; i < match.size(); ++i ) { cout << i+1 << " " << match[i] << endl; } }

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CVS directories in tarballs
by Emre Turkay 25 May '05

25 May '05

Hi Folks, Why are the CVS directories are excluded from the tarball? I think it would be useful to distribute them with anonymous cvs access settings because - someone might want to get the boost library but particularly interested in the latest additions of one specific library, - one could see what is new in a particular directory/file with a "cvs diff", - and it encourages bug-fixing. Thanks, emre

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Re: [Boost-users] Building boost on AIX with GCC -- pthread problems
by Patrik Jonsson 25 May '05

25 May '05

> > > Hi - > > I'm trying to build boost on an AIX box using GCC, and am having > pthread issues. > > In particular: > > ------------------------------------------------------------------------ > $ uname -a > AIX dev-app-a00 2 5 00089FFC4C00 unknown unknown AIX > > $ gcc -v > Reading specs from > /usr/local/lib/gcc-lib/powerpc-ibm-aix5.1.0.0/3.3.3/specs > Configured with: ../gcc-3.3.3/configure --disable-nls > Thread model: aix > gcc version 3.3.3 > > $ bjam -v > Boost.Jam Version 3.1.10. OS=AIX. > [... elided copyright stuff ...] > > $ bjam > [... elided PYTHON stuff here ...] > ...found 7231 targets... > ...updating 840 targets... > gcc-C++-action > bin/boost/libs/date_time/build/libboost_date_time.so/gcc/debug/shared-linkable-true/greg_month.o > > In file included from > /home/dkatz/dev/Engine/Agorai/Boost/boost/detail/lwm_pthreads.hpp:20, > from > /home/dkatz/dev/Engine/Agorai/Boost/boost/detail/lightweight_mutex.hpp:92, > > from > /home/dkatz/dev/Engine/Agorai/Boost/boost/detail/shared_count.hpp:28, > from > /home/dkatz/dev/Engine/Agorai/Boost/boost/shared_ptr.hpp:26, > from > /home/dkatz/dev/Engine/Agorai/Boost/boost/date_time/gregorian/greg_month.hpp:14, > > from > /home/dkatz/dev/Engine/Agorai/Boost/libs/date_time/src/gregorian/greg_month.cpp:14: > > /usr/include/pthread.h:554: error: `pthread_rwlock_t' was not declared > in this > scope > /usr/include/pthread.h:554: error: parse error before `)' token > [... lots more pthread problems of this sort ...] > ^C...interrupted > $ > Hi, I got this same problem when I (accidentally) tried to build Boost with gcc 3.2. When I used 3.4, everything worked, so you might try upgrading the compiler. cheers, /Patrik > ------------------------------------------------------------------------ > **

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std::queue serialization
by beastmasterT 25 May '05

25 May '05

I am using the serialization library, and I need an interface to the std::queue class. Has anyone done this before? If I need to do it by hand, I could use a bit of guidance. I've tried to modify the deque.hpp provided, but without success. Thanks, Kyle

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RE: [Boost-users] Scoped_ptr + deleter
by Sohail Somani 24 May '05

24 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Richard Hadsell > Sent: Tuesday, May 24, 2005 7:00 AM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Scoped_ptr + deleter > > > Caleb Epstein wrote: > > >I'm not certain, but I would guess that overhead is the reason. > >Perhaps someone more closely involved in the implementation (Peter?) > >would care to comment. > > > > > As a user of scoped_ptr and scoped_array, I expressed a > strong opinion > that its memory usage remain as is, and some Boost developers > agreed. > If you have a way to maintain the current behavior (speed and memory > footprint) as a default, you are welcome to add functionality. > Otherwise, it becomes useless to me. What about something like: #include <iostream> #include <vector> #include <algorithm> using namespace std; template <class A> struct caller { static void callme(A * d) { delete d; } }; template <class A,class caller> struct l00lz { A * p_; l00lz(A * p):p_(p) { caller::callme(p_); } }; int main() { int * a = new int(5); l00lz<int,caller<int> > b(a); return 0; } AFAIK, it wouldn't affect the speed nor memory footprint

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Just can't get started with boost testing framework
by Dave Harrison 24 May '05

24 May '05

Hi guys, I'm new to using Boost, and I'm hitting my head against what I'm pretty sure is a linking / inclusion problem. I'm trying to use the library to test code I'm writing, but I don't want to have to install the libraries onto the machine I'm compiling on (I just want a way I can have them in my code directory and include them from there). I've tried using both the unit_test_framework.hpp inclusion method, as well as linking against the built binary library, but I essentially keep hitting this problem : > g++ unit_test_example1.cpp unit_test_example1.cpp:10:55: error: boost/test/included/unit_test_framework.hpp: No such file or directory the only line in unit_test_example1.cpp is : #include <boost/test/included/unit_test_framework.hpp> In my code dir I've copied across the boost/test dir from the unzipped tar ball. Any help is greatly appreciated. Cheers Dave

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RE: [Boost-users] Scoped_ptr + deleter
by Sohail Somani 24 May '05

24 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Caleb Epstein > Sent: Monday, May 23, 2005 2:32 PM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Scoped_ptr + deleter > > > On 5/23/05, Sohail Somani <s.somani(a)fincad.com> wrote: > > Why doesn't scoped_ptr have an additional template > parameter to accept > > a deleter? > > Because that would make it larger than sizeof (T*). I > believe the general consensus on this is to use shared_ptr or > perhaps the upcoming policy_ptr. For educational purposes, why is this important?

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transmute_iterator
by Louis Lavery 24 May '05

24 May '05

I'm looking for a transforming iterator. I've looked at the boost transform_iterator but it doesn't quite do what I want. Well, in fact it does a little too much, it passes the dereferenced base iterator to the transform function - I would like it to pass the base iterator itself. The reason being is that the transform function is to return an object containing that base iterator (the object acts much along the lines of a boost graph edge/vertex descriptor). At the moment I've cut and pasted transform_iterator.hpp, renamed it transmute_iterator.hpp and edited it to remove one char (the dereferencing *) just so as I can try things out. Oh, I am slow! I was going to ask if such an iterator could be added to boost lib but have just realised that it is trivial for a transmute_iterator to model a transform_iterator. Hmm, so my question now is - is there some reason why the base iterator is dereferenced before being passed to the function? Wouldn't it be better to let the function decide that? thanks, Louis. BTW, you guys write some really great stuff, it's very much appreciated. And C++ Template Metaprogramming is mind blowing (especially chapters 10++). -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.322 / Virus Database: 266.11.12 - Release Date: 17/05/2005

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RE: [Boost-users] Re: Question
by Sliwa, Przemyslaw (London) 24 May '05

24 May '05

I have seen it already, thanks. There is nothing about it how to extract the headers and libs. Should I first compile the whole library and then extract it? Or perhaps first extract and then compile. In the second case I do not get any jam file. Can you help? Thanks Pshemek -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of David Abrahams Sent: 23 May 2005 12:10 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: Question "Sliwa, Przemyslaw (London)" <Przemyslaw_Sliwa(a)ml.com> writes: > Guys, > > I was just wondering if it is possible to install just a part of the > boost library? > The current version is a bit "big" and there are certain libs which I o > not need. See http://www.boost.org/tools/bcp/bcp.html HTH, -- Dave Abrahams Boost Consulting www.boost-consulting.com _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -------------------------------------------------------- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ --------------------------------------------------------

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static assertion in date_serialization_demo
by Paolo Coletta 24 May '05

24 May '05

Hi, I've tried to build this simple code using vc 7.1 using namespace boost::gregorian; date d(2004, Apr, 5); std::ofstream ofs("date_demo.txt"); boost::archive::text_oarchive oa(ofs); oa << d; but it fails due to a static assertion. The code is taken from the very first lines of boost_serialization_demo.cpp. It seems to compile with boost 1.32, but seems to fail with current boost. Since this demo is not be included in the jamfile (or I was not able to find it), I built it is using visual studio IDE. The compiler command-line options were: /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /Gm /EHsc /RTC1 /MLd /Fo"Debug/" /Fd"Debug/vc70.pdb" /W3 /nologo /c /Wp64 /ZI /TP I also tried to turn on/off the RTTI, but the result did not change. The error I get is d:\PROJECTS\boost\boost\archive\detail\oserializer.hpp(557) : error C2027: use of undefined type 'boost::STATIC_ASSERTION_FAILURE<x>' Am I missing something? Thanks, Paolo

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