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Error report!!
by Ulises Herrera 09 May '02

09 May '02

The file... boost/random/uniform_smallint.hpp need... #include <boost/static_assert.hpp> when boost is compiled with g++-3.0 and a program is linked with it. -- _______________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup

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building Boost using Jam
by jd.schmidt＠juno.com 09 May '02

09 May '02

Hi, I'm new to using Boost. I've been trying to build Boost using Jam on Windows 2000. My compiler is MSVC6 SP5. As the documentation (www.boost.org/tools/build/index.html) says, I went to my Boost root directory (C:\boost_1_27_0 for me) and used the command jam -sBOOST_ROOT=. -sTOOLS="msvc" and I get the message: 'jam' is not recognized as an internal or external command, operable program, or batch file OK, fine, jam.exe is in C:\boost_1_27_0\boost-build; that's just where I downloaded it to. I've tried to run Jam from the boost-build directory, but I get the message: Jamfile: No such file or directory ...found 8 targets... This doesn't seem very straightforward. What do I need to do here so that I can build Boost? ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.

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build setup - what have I missed?
by dick.bridges＠tais.com 09 May '02

09 May '02

This worked once. Then the [yeah, it wasn't backed up] disk drive died. Target system is Win2000, SP5 and MS Visual C++ 6.0, SP5. Downloaded boost-build.win.zip and extracted it to c:\bin\boost-build. Added c:\bin\boost-build to the path. Set environment variables: BOOST_BUILD=c:\bin\boost-build JAM_TOOLSET=VISUALC VISUALC="c:\Program Files\Microsoft Visual Studio\VC98\bin" Checked out from CVS to d:\dev cd'd to d:\dev\boost and executed: %BOOST_BUILD%\jam -sBOOST_ROOT=. -sTOOLS=msvc <result> warning: unknown rule boost-build don't know how to make all ...found 1 target... ...can't find 1 target... </result> I've clearly screwed something up but I can't figure out what. Help would be appreciated. TIA (from the eternal newbie)

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Unable to compile Boost Graph (BGL) inVisual Studio 7 (.NET)
by dmarsh26us 08 May '02

08 May '02

Have just bought the book and downloaded the source it all looks cool.... BUT Can't build a thing! Managed to get hold of AllExamples.dsw eventually converted it to a new VC7 solution ok (few errors on some projects). But no builds, cannot build any of my own code with BGL either. HELP. This is the jist of it:- ------ Build started: Project: dfs_example, Configuration: Debug Win32 ------ Compiling... dfs-example.cpp ../boost_1_25_1\boost\type_traits\cv_traits.hpp(188) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2844) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information Build log was saved at "file://c:\BGL\VC++ Projects\Debug\BuildLog.htm" dfs_example - 1 error(s), 0 warning(s) ---------------------- Done ---------------------- Build: 0 succeeded, 1 failed, 0 skipped The cv traits class seems to trigger the compiler to crash horribly. I don't even know what this class does yet. (only got to page 55 of the book!) Anyone know a workaround? Anyone tried VC7 with boost yet? Is there a microsoft patch yet? Can't go back to VC6 as am using other new libraries. Thanks David Marsh

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Help me pay the piper?
by dick.bridges＠tais.com 08 May '02

08 May '02

Now that I've used all this swell stuph, it's time to pay the piper: turn it over to QC and get it into "The Build". Unfortunately the QC people would like some instructions that describe which version of boost-build I'm using; how to install it; which version of the libs I'm using; etc. <some background> It's been a couple of months since I started with the boost libs, and I don't remember all the gyrations I went through to get it working and I'm POSITIVE I did a LOT more than is required. I remember that, after downloading and extracting boost_1_27_0.tar.gz, I had to get the current version from CVS before I could get a clean compile. (I tried turning over copies of my disk drives to them but it turns out that is not considered acceptable documentation. %>[ ) I've been following the jamboost and Boost-Users mailing lists so I know there've been quite a few changes - especially to boost-build. After building a "clean" testbed machine, I started by downloading boost-build.win.zip and following the instructions in the readme.html. Well, that didn't work. I can do a hand job on the path but I'm not sure what environment variables are actually required. Current plan is to pull the library source directly from CVS. Problem is, I don't know what version to tell QC I'm using and, unless all the folks at boost.org would agree not to add anything to CVS for a while, I SURE can't tell them how to re-create what I did. ;) </some background> I can always take what I've got; check it in and call it a day but that's not the path to getting boost integrated into the development environment around here. (Hey, I'm trying to be an evangelist here.) Anyone by any chance working on some updated instructions and/or docs that maybe aren't ready for prime time but would be willing to share? TIA PS: Current target systems are Win2000, SP2 and Visual C++ 6.0, SP5 and vanilla Red Had Linux 7.2.

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voronoi diagram and BGL
by Louis Lavery 08 May '02

08 May '02

Hi, Is it possible to order the edges of a vertex of a boost graph? >From what I can glean from the BGL documentation, I guess the answer will be "No, but may be some time in the future". I so, how soon in the future? Thanks, Louis.

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Solaris jam build
by cs_jritchie 08 May '02

08 May '02

I am receiving the following on a Solaris system when using: jam -sBOOST_ROOT=. -sTOOLS=gcc status/Jamfile:53: in failed-test-file warning: unknown rule FAIL_EXPECTED status/Jamfile:100: in fail-to-build ./tools/build/boost-base.jam:1407: in subvariant-target ./tools/build/boost-base.jam:1448: in main-target ./tools/build/boost-base.jam:1065: in declare-local-target status/Jamfile:35: in boost-test status/Jamfile:119: in compile-fail status/Jamfile:368: in SubInclude ./tools/build/allyourbase.jam:1141: in subinclude Jamfile:5: in module scope {...above repeated many times...} Unable to load Boost.Build, it seems that the build system files were located, but the build system is not defined. Attempted to use, as the bootstrap, this file: ./tools/build/boost-build.jam. This means that even though that file was loaded it either failed to directly load the build system files, or it failed to specify where to find and load the files by calling the 'build-system [path] ;' rule. Please consult the documentation at 'http://www.boost.org'. What am I doing wrong? Any help is appreciated.

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Re: Problems building Python lib
by pendrildurham 08 May '02

08 May '02

Sorry -- Newbie here -- I don't know exactly what the 'latest CVS state' is or how to get it. I have been trying to build boost-python on Windows95 with MSVC++6. I have boost 1.27 and activestate python 2.2.1 build 222. I can get it to compile but the link fails. Here is the linker message for the boost-example1: Linking... Creating library Debug/hello.lib and object Debug/hello.exp example1.obj : error LNK2001: unresolved external symbol "bool __cdecl boost::python::handle_exception_impl(class boost::function0<void,struct boost::empty_function_policy,struct boost::empty_function_mixin,int>)" (?handle_exception_impl@python@boos t@@YA_NV?$function0@XUempty_function_policy@boost@@Uempty_function_mix in@2@H@2@@Z) bpl_static.lib(types.obj) : error LNK2001: unresolved external symbol "bool __cdecl boost::python::handle_exception_impl(class boost::function0<void,struct boost::empty_function_policy,struct boost::empty_function_mixin,int>)" (?handle_exception_imp l@python@boost@@YA_NV?$function0@XUempty_function_policy@boost@@Uempty _function_mixin@2@H@2@@Z) bpl_static.lib(extension_class.obj) : error LNK2001: unresolved external symbol "bool __cdecl boost::python::handle_exception_impl(class boost::function0<void,struct boost::empty_function_policy,struct boost::empty_function_mixin,int>)" (?handle_exc eption_impl@python@boost@@YA_NV?$function0@XUempty_function_policy@boo st@@Uempty_function_mixin@2@H@2@@Z) bpl_static.lib(extension_class.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) bpl_static.lib(functions.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) bpl_static.lib(objects.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) example1.obj : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) bpl_static.lib(module_builder.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) bpl_static.lib(init_function.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) bpl_static.lib(classes.obj) : error LNK2001: unresolved external symbol "struct _object * __cdecl boost::python::expect_non_null(struct _object *)" (?expect_non_null@python@boost@@YAPAU_object@@PAU3@@Z) Debug/hello.dll : fatal error LNK1120: 2 unresolved externals Error executing link.exe. hello.dll - 11 error(s), 0 warning(s) Perhaps there is something simple I can do to fix this? Perhaps there is something I need to include in the project to get the link to work? Can anyone help? Thanks --- In Boost-Users@y..., Albrecht Fritzsche <albrecht.fritzsche@t...> wrote: > David Abrahams wrote: > > >1. Get the latest CVS state. Release 1.27 is broken in several ways. > > > Ooops, ok - I will try the CVS version. > > >The library works with Python 2.2.1 > > > Thanks - that's the info I was hoping for :-) > > Ali

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creating a shared_ptr<T> from a weak_ptr<T>
by Toon Knapen 08 May '02

08 May '02

When creating a shared_ptr<T> from a weak_ptr<T>, I want the shared_ptr<T> to use the same count as the shared_ptr the weak_ptr was constructed from. I could create a new shared_ptr, based on the pointer I can get() from the weak_ptr. But in this case, this shared_ptr will keep its own count. Let me fill you in on my use-case. An object creates some big data-structure on request of its clients, taking into account some options specified by the client while making the request. Now I'd like the server-object to keep a weak_ptr to these big data-structure to provide quickly the same result once another client performs an identical request. The server should however not keep a shared_ptr because otherwise all datastructure will stay in memory. And therefor I need to create a shared_ptr from a weak_ptr. thanks, toon

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Re: [Boost-Users] AllExamples.dsw from BGL Errata Web-site
by Lie-Quan Lee 07 May '02

07 May '02

Hi Jon, Thanks to remind me that attachment doesn't work for yahoogroups. I put the file at http://groups.yahoo.com/group/boost/files/BGLVCprojects.tgz Just in case, it is also available at: http://www.osl.iu.edu/~llee/BGLVCprojects.tgz Jeremy Siek will update the file on BGL book errata page. On Tue, 2002-05-07 at 11:43, Jon Kalb wrote: > >Hi Richard, > > > >It looks like the BGLVCprojects.tgz online is corrupted somehow. I > >attached the right file (about 466.1K) in this message. Please extracts > >the contents of the tarball using winzip 8.0 or up. The tarball includes > >the missing workspace file and project files. > > > >Thanks for reporting that problem! > >-- > >Lie-Quan Lee (AKA: Rich Lee) > >Research Associate http://www.osl.iu.edu/~llee > >Computer Science Department llee(a)cs.indiana.edu > >Indiana University at Bloomington 812-855-3608(Office) > > > >[Non-text portions of this message have been removed] > > Rich, > > As you can see from the line inserted by Yahoo! Groups in your > message, Boost-Users is configured to not allow attachments. If you > wouldn't mind uploading the attachment to the group's shared file > area you can send a link to it. Or if you want to send the file to > me, I'll take care of it. > > Thanks. > > -- > Jon Kalb > Kalb(a)LibertySoft.com -- Lie-Quan Lee (AKA: Rich Lee) Research Associate http://www.osl.iu.edu/~llee Computer Science Department llee(a)cs.indiana.edu Indiana University at Bloomington 812-855-3608(Office)

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