- Boost-users - lists.boost.org

RE: [Boost-users] Re: The Boost Community
by Brian Braatz 09 May '05

09 May '05

Hmm... Ok Dave made some pretty good points below. Thinking... The perspective I am coming from is this. I have been connected to the boost world now for two years. I am a relative newbie. But I am thinking back to the things that can "immediately hook" a new person. I think the points you raised towards mine are all valid. I think the disconnect is we are thinking about different use cases if you will. I am coming from a "ok so a non-boost person hits the page, how do we best speak to that person" point of view. I think your points come more from a practical day to day perspective. I respect that. I can speak FROM the "newbie" perspective because it wasn't that long ago for me. And I can tell you that it takes an awful lot of patience and persistence to become someone who "sees what boost does" and can actually start using it in projects. The work done on the web site an the libraries is of excellent quality. For that I applaud. But for the person coming in cold, the bigger picture is difficult to get initially. I believe the issues I am raising can be best spoken to by: 1- Driving and encouraging more use of the Wiki 2- I would place a link to the users boost list and the wiki somewhere in the upper left of the page 3- Having a quick run down of each library also linked in the same area (this was suggested before) 4- Having a runtime environment for boost (like CGYWin does) (I have done something like this internal to our company- Dave- you may recall me showing you this at oopsla) I believe these suggestions would help the newbie. Of course these have to be balanced with the day to day needs of the day to day people. Brian :) > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of David Abrahams > Sent: Friday, May 06, 2005 6:05 AM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Re: The Boost Community > > "Brian Braatz" <brianb(a)rmtg.com> writes: > > > > > [Brian Braatz Writes:] > > Did some more peeking. Since I use outlook for everything (or the main > > page's archive searching) I was not aware of this view > > http://lists.boost.org/boost/2005/03/date.php > > > > This speaks to what I was raising before. However it is not "in my > > face" (I never noticed this view existed on the site before today). > > Maybe because the main Boost web archive was only recently changed to > use new software. > > > I would like to amend my suggestion to be the following: > > > > 1- Formal link to the list on boost.org main page > > There are lots of Boost mailing lists. If we drive everything we > think is important up to the top level it will become even harder to > use than it already is. What's wrong with > www.boost.org/more/mailing_lists.htm, which is prominently linked from > the main page? > > > 2- Boost wiki links also a "first class citizen" link on the first > > page I.e. it goes from the BOTTOM of the page to the TOP- and it > > goes from being "Unofficial" to being one if not the FIRST thing on > > the list > > > > My suggestion would be to list the left pane like so: > > > > Boost Wiki > > Boost Mailing list (takes you to the lists view above) > > I don't know about that; that view doesn't tell you how to post or > subscribe to the list. I don't think the "Boost Mailing List" link > ought to lead people down a tunnel that only gives them a view of the > archive. > > > And then everything else > > > > Addtionally- I would add putting a link to the Wiki in the mail > > (previously discussed) and at the top of the "archive view" link > > above. (responding to my own post) > > Not sure about that one either. We need some criteria to decide what > gets driven to the top level everywhere. > > -- > 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

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Re:
by pankaj jain 09 May '05

09 May '05

Hi , I am new user of boost.python. Please help me in solving this problem. problem 1) When I am running bjam from home/boost/libs/python/example/tutorial folder its running fine but building my hello.so in home/boost/bin/boost/libs/python/example/tutorial/hello.so/gcc/.. folder.is there any way to chagne the path for hello.so problem 2): when I am running bjam from any other folder ( home/boost/sample) its giving me this error :: /home/jamrules no such directory .../.../allyourbase.jam 1451 see definition of rules "root-path: being called. Please let me know any solution. Thanks for all your help Pankaj Doug Gregor <dgregor(a)cs.indiana.edu> wrote: On May 9, 2005, at 5:54 AM, Rui Carvalho wrote: > Hi, > > I have a directed graph (vecS, vecS, bidirectionalS) and I'm trying to > iterate through the neighbour vertices of a vertex u. When using > > for (tie(ai0,ai0_end) = adjacent_vertices(u,g); ai0 != ai0_end; ++ai0) > > the code goes only through the out vertices of u. Is there a way to > iterate > through all the neighbouring vertices in one loop (i.e. through both > the out > and in vertices of u)? I don't know of a good way to do this with the BGL. You'll need to either build some kind of smart iterator adaptor that traverses out_edges then in_edges, or have two separate loops. Doug _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users --------------------------------- Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone.

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RE: [Boost-users] Re: The Boost Community
by Brian Braatz 08 May '05

08 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Beman Dawes > > FWIW, I really like http://community.boost.org > [Brian Braatz Writes:] Yes, it grows on you after awhile. What I like about it, is the undertone of community.

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RE: [Boost-users] Re: The Boost Community
by Foster, Gareth 08 May '05

08 May '05

Wouldn't something simply and descriptive like http://boostcommunity.org/ or http://community.boost.org/ make more sense? I know everyone is thinking marketing etc, but I think it will be possible to come up with something along those practical lines, that still sounds slick. Thesaurus entry for community anyone? Gaz > -----Original Message----- > From: Brian Braatz [mailto:brianb@rmtg.com] > Sent: 05 May 2005 20:55 > To: boost-users(a)lists.boost.org > Subject: RE: [Boost-users] Re: The Boost Community > > www.igotboost.org is available > > www.gotboosted.org and .com is available > > www.getboosted.org is available > > www.getmeboosted.org and .com is available > > www.boostme.net is available. > > www.boostme.org is available. > > > > -----Original Message----- > > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > > bounces(a)lists.boost.org] On Behalf Of Vladimir Krasovsky > > Sent: Thursday, May 05, 2005 1:13 AM > > To: David Abrahams > > Subject: Re: [Boost-users] Re: The Boost Community > > > > Hello David, > > > > Thursday, May 5, 2005, 12:17:14 AM, you wrote: > > > > > I actually love that. > > > > > www.gotboost.org > > > > By the way this domain is already used by someone. Can it be a > > problem? > > > > > > -- > > Best regards, > > Vladimir mailto:vkrasovsky@yandex.ru > > > > > > _______________________________________________ > > Boost-users mailing list > > Boost-users(a)lists.boost.org > > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > > > _______________________________________________ > 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] Re: The Boost Community
by Brian Braatz 08 May '05

08 May '05

HAHAHAHAHA I was just trying anything I could think of.. (name wise) Though "www.pimpmycode" does have a interesting ring to it... What we need is a discovery channel show, where we talk boring old app code and "pimp it out".... Geeks all over the world would be tuning in... > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of David Abrahams > Sent: Friday, May 06, 2005 6:06 AM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Re: The Boost Community > > "Brian Braatz" <brianb(a)rmtg.com> writes: > > > boostmycode.com is available. > > boostmycode.net is available. > > boostmycode.org is available. > > These are kinda like "pimp my ride." Fun, but... appropriate? > > -- > 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

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iostreams build problem (current cvs)
by Chris Hoeppler 08 May '05

08 May '05

Hi, using a current boost download from cvs, I encountered the following build problem: the iostreams build seems to somehow pick up the names of the source files of the serialization lib. I am appending the head of the bjam output. Any idea what's going on here? Thanks Chris chris@fred:~/boost_050505> bjam stage ****************************************************** Building Boost.Regex with Unicode/ICU support disabled. HINT: define the environment variable ICU_PATH to point to the root directy of your ICU installation if you have one. Couldn't find utypes.h in ****************************************************** ...patience... don't know how to make <@boost!libs!iostreams!build>../src/basic_archive.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_iarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_oarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_iserializer.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_oserializer.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_pointer_iserializer.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_pointer_oserializer.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_serializer_map.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_text_iprimitive.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_text_oprimitive.cpp don't know how to make <@boost!libs!iostreams!build>../src/basic_xml_archive.cpp don't know how to make <@boost!libs!iostreams!build>../src/binary_iarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/binary_oarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/extended_type_info.cpp don't know how to make <@boost!libs!iostreams!build>../src/extended_type_info_no_rtti.cpp don't know how to make <@boost!libs!iostreams!build>../src/extended_type_info_typeid.cpp don't know how to make <@boost!libs!iostreams!build>../src/polymorphic_iarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/polymorphic_oarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/stl_port.cpp don't know how to make <@boost!libs!iostreams!build>../src/text_iarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/text_oarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/void_cast.cpp don't know how to make <@boost!libs!iostreams!build>../src/xml_grammar.cpp don't know how to make <@boost!libs!iostreams!build>../src/xml_iarchive.cpp don't know how to make <@boost!libs!iostreams!build>../src/xml_oarchive.cpp ...patience... ...found 7779 targets... ...updating 1725 targets... ...can't find 25 targets... ...can't make 220 targets... MkDir1 stage MkDir1 stage/lib MkDir1 bin MkDir1 bin/boost MkDir1 bin/boost/libs MkDir1 bin/boost/libs/test MkDir1 bin/boost/libs/test/build MkDir1 bin/boost/libs/test/build/libboost_prg_exec_monitor.so MkDir1 bin/boost/libs/test/build/libboost_prg_exec_monitor.so/gcc MkDir1 bin/boost/libs/test/build/libboost_prg_exec_monitor.so/gcc/debug MkDir1 bin/boost/libs/test/build/libboost_prg_exec_monitor.so/gcc/debug/shared-linkable -true gcc-C++-action bin/boost/libs/test/build/libboost_prg_exec_monitor.so/gcc/debug/shared-linkable -true/execution_monitor.o <snip> -- +++ Lassen Sie Ihren Gedanken freien Lauf... z.B. per FreeSMS +++ GMX bietet bis zu 100 FreeSMS/Monat: http://www.gmx.net/de/go/mail

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Boost serialization and dependency nightmares...
by kauai 08 May '05

08 May '05

Hi all, I have a container class that has a vector which contains several other classes. My container class has a serialize function that looks like this: friend class boost::serialization::access; template<class Archive> void serialize (Archive &ar, const unsigned int version) { // save/load base class information ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(MyBaseClass); ar.register_type(static_cast<SomeClass1*>(NULL)); ar.register_type(static_cast<SomeClass2*>(NULL)); ... ar & BOOST_SERIALIZATION_NVP(m_Vector); // std::vector } Got everything working but now an issue has come up: Someone wants to add a new class but it is not part of this package that is doing the serialzation. I want to avoid what I call "dependency hell", is there a way for that new class to get registered someplace other than in this function? Thanks for any help, Kauai Discover Yahoo! Stay in touch with email, IM, photo sharing and more. Check it out! http://discover.yahoo.com/stayintouch.html

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subclassing shared_ptr?
by Jean-François Brouillet 08 May '05

08 May '05

- I'm porting to C++ a huge java library. - Java constructor semantics is close to that of C++ but not identical. - boost::shared_ptr does nearly exactly what I want except for 1 little thing peculiar to the project I'm working on. The short story is that, for the C++ version, I need an "after ctor" method to be called before any other member function is allowed to be called. The logical next step was to override operator-> which led me to a long route ending now with boost::shared_ptr. I should be able to solve my problem by _patching_ my local copy of shared_ptr.hpp as follows: ... template<class Y> explicit shared_ptr(Y * p): px(p), pn(p, checked_deleter<Y>()) // Y must be complete { p->constructor() ; // single patch for my purpose detail::sp_enable_shared_from_this( pn, p, p ); } ... But obviously, I'd rather not do that. So I came up with: template <typename T> struct Bridge : public boost::shared_ptr<T> { template <typename Y> explicit Bridge(Y * y) : boost::shared_ptr<Y>(y) { if (y) { y->constructor() ; } } } ; But then, the guarantee given in the boost shared_ptr documenation was broken: Quote: shared_ptr<T> can be implicitly converted to shared_ptr<U> whenever T* can be implicitly converted to U*. In particular, shared_ptr<T> is implicitly convertible to shared_ptr<T const>, to shared_ptr<U> where U is an accessible base of T, and to shared_ptr<void>. So, I added a copy constructor: template <typename T> struct Bridge : public boost::shared_ptr<T> { template <typename Y> explicit Bridge(Y * y) : boost::shared_ptr<Y>(y) { if (y) { y->javaConstructor() ; } } template<typename Y> Bridge(Bridge<Y> const & r) : boost::shared_ptr<Y>(r) { } } ; But then I get: /Users/verec/Tools/boost_1_32_0/osx/main.cpp: In constructor `Bridge<T>::Bridge(const Bridge<Y>&) [with Y = DisplayStruct, T = DeviceStruct]': /Users/verec/Tools/boost_1_32_0/osx/main.cpp:243: instantiated from here /Users/verec/Tools/boost_1_32_0/osx/main.cpp:21: error: type 'class boost::shared_ptr<DisplayStruct>' is not a direct base of 'Bridge<DeviceStruct>' Here's the relevant part of the code: #include <iostream> #include <vector> #include <string> #include <sstream> #include <boost/shared_ptr.hpp> struct ObjectStruct { ObjectStruct() { } ; virtual void constructor() { } virtual ~ObjectStruct() { } } ; typedef Bridge<ObjectStruct> Object ; struct DeviceStruct : public ObjectStruct { typedef Bridge<DeviceStruct> Device ; DeviceStruct() { std::cout << "Device standard c++ constructor." << std::endl ; } virtual void deviceMethod() { std::cout << "DeviceStruct::deviceMethod." << std::endl ; } virtual void constructor() { std::cout << "java's Device::constructor." << std::endl ; } static Device current ; static Device getCurrent() { return current ; } } ; typedef Bridge<DeviceStruct> Device ; struct DisplayStruct : public DeviceStruct { typedef Bridge<DisplayStruct> Display ; DisplayStruct() { std::cout << "Display standard c++ constructor." << std::endl ; } DisplayStruct() { std::cout << "Display standard c++ constructor." << std::endl ; } virtual void constructor() { DeviceStruct::constructor () ; std::cout << "java's Display::constructor." << std::endl ; } virtual void deviceMethod() { DeviceStruct::deviceMethod () ; std::cout << "DisplayStruct::deviceMethod." << std::endl ; } virtual void displayMethod() { std::cout << "displayMethod." << std::endl ; } } ; typedef Bridge<DisplayStruct> Display ; void callDevice(Device d) { d->deviceMethod() ; } int main (int argc, char * const argv[]) { Display display(new Display) ; Device device(new DeviceStruct) ; callDevice(device) ; callDevice(display) ; return 0 ; } What am I missing ? Many Thanks. -- Jean-François Brouillet verec(a)mac.com

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Regex matching of an empty string
by Edward Diener 07 May '05

07 May '05

If the string to match is an empty string, "", and the regular expression is such that it matches the empty string, such as "^$", should a match be found ?

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RE: [Boost-users] Re: The Boost Community
by Brian Braatz 07 May '05

07 May '05

www.igotboost.org is available www.gotboosted.org and .com is available www.getboosted.org is available www.getmeboosted.org and .com is available www.boostme.net is available. www.boostme.org is available. > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Vladimir Krasovsky > Sent: Thursday, May 05, 2005 1:13 AM > To: David Abrahams > Subject: Re: [Boost-users] Re: The Boost Community > > Hello David, > > Thursday, May 5, 2005, 12:17:14 AM, you wrote: > > > I actually love that. > > > www.gotboost.org > > By the way this domain is already used by someone. Can it be a > problem? > > > -- > Best regards, > Vladimir mailto:vkrasovsky@yandex.ru > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users

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