August 2006 - Boost-users - lists.boost.org

numeric problem on msvc8 x64
by Artem Alimarine 15 Aug '06

15 Aug '06

Hi, I get the following error compiling with MSVC toolset arhcitecture=x86 address-model=64: C:\boost-cvs\boost\boost/numeric/interval/hw_rounding.hpp(36) : fatal error C1189: #error : Boost.Numeric.Interval: Please specify rounding control mechanism. The source code is taken form RC4 head today (15-aug-2006). Is there something wrong with my setup or it's a feature ;-)? In header file that there is no handling of x64 whatsoever. So, it should be a feature. Can anyone advice an acceptable workaround? Artem.

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Re: [Boost-users] Boost serialization xml format and xml comments
by Todd Greer 15 Aug '06

15 Aug '06

Matt Schuckmann wrote: > Since the Serialization library doesn't use a complete xml > grammar (like what is provided on the Spirit examples page) and since it > doesn't let Spirit see the entire text it isn't quite as easy as it > might seem to make it work. So far I've gotten it to ignore comments > before and after most tags but I'm not sure if it'll work in the general > case. I wonder if, long term, it might be worth rewriting xml_iarchive to use a Spirit grammar for the overall parser. Robert, is there a particular rationale for the hybrid approach that you used, or is that just a product of how familiar you were with Spirit at the time? -- Todd Greer <at Affinegy dot com, tgreer>

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Using boost compiled with VC++ 8.0 on VC++ 6.0
by Matthias Hofmann 15 Aug '06

15 Aug '06

Hello everybody, I have just successfully compiled boost 1.33.1 with Visual C++ 8.0 Express Edition and it seems to work fine with that compiler. Unfortunately, I am still forced to use Visual C++ 6.0 for applications that include dialogs and other resources, as the Express Edition of Visual C++ 8.0 does not support these. Now I wonder if the boost libraries I have compiled with Visual C++ 8.0 Express Edition are also compatible with Visual C++ 6.0? -- Matthias Hofmann Anvil-Soft, CEO http://www.anvil-soft.com - The Creators of Toilet Tycoon http://www.anvil-soft.de - Die Macher des Klomanagers

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Boost serialization xml format and xml comments
by Matt Schuckmann 15 Aug '06

15 Aug '06

Is there a reason why the xml parser for the Serialization library can't handle comments in the xml files? Or was this just an oversight. Has anybody modified the grammar so that it will work with comments in the xml files? Thanks Matt S.

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[general] MSVC71 Warnings Off?
by Wu Yinghui, Freddie 15 Aug '06

15 Aug '06

Hi all, I guess this question could have been asked before. But I've failed to find an answer from my basic search from the web so far. So please try to bear with me if it is old stuff. Our development environment is using MSVC71 at the moment, and our coding standard requires warning level 4 and 64-bit compatiblity check of the compiler. But whenever I use some of the Boost library headers (most notably Boost.Function, Boost.Integer and Boost.uBLAS for now, and we have not started using most of the other libraries yet), there are tons of warnings from the compiler. As our development team view compiler warnings as important signs of potential problems in our own code, we'd like to suppress warnings from Boost headers (assuming that they are at least better tested than our code). So my question is: Is there a way for us to suppress warnings from Boost headers without affecting the warning level significantly on our own code? Any idea is greatly appreciated. :) Cheers, Freddie -- Wu Yinghui, Freddie Research & Development Software Engineer Volume Interactions Pte Ltd 1 Kim Seng Promenade, #12-01 Great World City East Tower Singapore 237994 Tel: +65 62226962 (Ext 216) Fax: +65 62226215 Email: yhwu(a)volumeinteractions.com URL: http://www.volumeinteractions.com Important: This message is intended for the recipient(s) addressed above. It contains privileged and confidential information. If you are not the intended recipient, please notify the sender immediately by replying to this message and then delete it from your system. You must not read, copy, use, or disseminate this communication in any form. Thank you.

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Re: [Boost-users] Boost serialization xml format and xml comments
by Todd Greer 15 Aug '06

15 Aug '06

Matt Schuckmann wrote: > Has anybody modified the grammar so that it will work with comments in > the xml files? As you investigate extending xml_iarchive to add this functionality, you may find it helpful to look at another example of extending xml_iarchive. In the Boost Vault, serialization/skip_xml_iarchive.zip extends xml_iarchive to of ignore unexpected xml elements. Though it does not handle comments, it may be sufficiently similar to your needs to justify glancing at its approach. -- Todd Greer <at Affinegy dot com, tgreer>

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Scripting using boost
by Shams 15 Aug '06

15 Aug '06

Hi, I want to simple scripting in my application, something like. IF window_title equals Firefox or window_title equals InternetExplorer open_kiosk() IF // nest if END_IF END_IF In this case I want to match the rule "window_title" and a parameter to that rule and upon seeing the text open_kiosk() I want to execute the real function. What would be the best boost libraries to use to achieve something like this? I am thinking of going with spirit and a combination of boost.regex or boost.xpressive. Thanks Shams

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A conflict in Boost?
by Ebbe Kristensen 15 Aug '06

15 Aug '06

I am developing a console program in Win32 using Borland C++ Builder 6 and Boost 1.33.1. I have a statically linked library that uses Boost tokenizer and regex. The main program uses Boost function and program_options. If my library is linked with the main program, the help output (generated by program_options) crashes with a null pointer access. This happens even if the library is not referenced in any way - it is enough just to link it in. Remove the library from the link list and the problem disappears. I'm fairly much out of ideas now so a bit of help would be very much appreciated. Ebbe

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[tuple] generating tuples from type lists
by imre＠u-tx.com 15 Aug '06

15 Aug '06

Hi, Is it possible to do this trick during compilation time? I was able to go from type lists to boost::cons but I can't find a way to make that last step. Thx. ImRe

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[BGL] dijkstra_shortest_path fails to call initialize_vertex
by Michael Barrientos 14 Aug '06

14 Aug '06

In Boost 1.33.1, the documentation at http://boost.org/libs/graph/doc/dijkstra_shortest_paths.html for the Dijkstra's Shortest Path algorithm says that the initialize_vertex(v,g) method of a Dijkstra visitor is invoked on each vertex in the graph before the start of the algorithm, but when I created a visitor with an initialize_vertex method, it was never called. I did some digging into the source, and found that when the Dijkstra's algorithm delegates to the Breadth First Search algorithm, it calls breadth_first_visit. However, only breadth_first_search calls initialize_vertex. Thus initialize vertex is never called. For now, I've decided to work around it without patching BGL, but can this be fixed in a future version?

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