May 2005 - Boost-users - lists.boost.org

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

07 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Jon Kalb > We could change the configuration of the footer for messages sent to this > list to include the wiki's URL. > > > _______________________________________________ > > Boost-users mailing list > > Boost-users(a)lists.boost.org > > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > Could be something like: > > ______________________________________________________________ > Boost-users(a)lists.boost.org http://boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl > > I'm not crazy about adding more text to the footer and I'm not certain > that > anyone actually ever *reads* the footer, but perhaps it would raise the > visibility of the wiki. (I wish the URL wasn't so long.) > > -- > Jon Kalb > Kalb(a)LibertySoft.com > [Brian Braatz Writes:] This is a good idea. My simple suggestion is to do this only use tinyurl.

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Boost.Jam - long file names in .a files lookup fix
by Snaury 06 May '05

06 May '05

Hello, boost-users, There is a bug in file `filent.c' in function `file_archscan', which causes long .o files in archives invisible to jam, and thus jam always recompiles such .o files, when using, for instance, mingw. The problem is in microsoft's coff definition of stringtables in archives, in which each name must be ended by '\0' versus (linux?) coff, where '\n' is used instead. The following patch is trivial, and I hope someone with cvs access can apply it. Btw, the same 'bug' is in current perforce's jam. diff -druN boost-jam-3.1.10/filent.c boost-jam-3.1.10-df/filent.c --- boost-jam-3.1.10/filent.c Tue Jun 1 09:45:14 2004 +++ boost-jam-3.1.10-df/filent.c Tue May 3 16:07:51 2005 @@ -251,7 +251,8 @@ */ name = string_table + atoi( ar_hdr.ar_name + 1 ); - endname = name + strlen( name ); + for( endname = name; *endname && *endname != '\n'; ++endname ) + /* nothing */; } else {

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