- Boost - lists.boost.org

[system][chrono] header-only libs
by vicente.botet 06 Jan '11

06 Jan '11

Hi, after discussion with Ion about whether Boost.Interprocess could use Boost.Chrono and Boost.System he has found as major drawback that both are not header-only libs. I have implemented Boost.Chrono as a header only lib. If the user wants Boost.Chrono be a header-only lib s/he needs to define the BOOST_CHRONO_INLINED macro. While this could be useful, there is a problem as Boost.Chrono depends on Boost.System that is not a header-only lib. * I have added this on the configuration file #ifdef BOOST_CHRONO_INLINED #define BOOST_CHRONO_INLINE inline #define BOOST_CHRONO_DECL #else #define BOOST_CHRONO_INLINE // as before #endif * Copied all the .cpp files to the detail/inlined directory. * Renamed the .cpp file by .hpp files * Included in the old .cpp files the corresponding .hpp file in the detail/inlined directory * I've replaced the prefix suffix as follows: #ifndef BOOST_CHRONO_INLINED #include <boost/config/abi_prefix.hpp> // must be the last #include #endif #ifndef BOOST_CHRONO_INLINED #include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas #else #include <boost/chrono/detail/inlined/file_name.hpp> #endif * prefixed the definitions of the function in the .cpp files by BOOST_CHRONO_INLINE While doing this I have found a minor issue on Windows platform. I hve nedeed to sorrounded by () all the use of min and max functions on the test files to avoid the macros defined on the windows.h file. That means that a header-only lib could break user sources as it will include implicitly some platform files. Another drawback that I have no inspected yet could be the increase in size and compilation time of the user code. Beman do you mind if I try to make your library configurable as header-only, so Ion could use Boost.System and Boost.Chrono and preserve Boost.Interprocess as a header-only lib? Best, Vicente P.S. You can see the sandbox for the last modifications _____________________ Vicente Juan Botet Escribá http://viboes.blogspot.com/

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library_status.cpp
by Bryce Lelbach 06 Jan '11

06 Jan '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 library_status.cpp (cd $BOOST_ROOT/tools/regression/build && bjam library_status toolset=gcc) does not build for me. I don't know how long this has been broken for, but who is the maintainer of this software? - -- Bryce Lelbach aka wash boost-spirit.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAk0lOrQACgkQ9cB/V3/s9Ez94wCgpSQpaWDHsBFm1S1uvdRKrSG9 fwAAoKlJWaEaAuEKZwvZMCIwC5C//tOO =5BVP -----END PGP SIGNATURE-----

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combinations and permutations
by Howard Hinnant 06 Jan '11

06 Jan '11

Warming this up for tr2: http://home.roadrunner.com/~hinnant/combinations.html Comments welcome. Real world use welcome. -Howard

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[graph_parallel] Is a distributed directed edge list possible?
by caustik 06 Jan '11

06 Jan '11

Is it currently possible to represent a highly connected graph where any given vertex may contain more directed edges than can be held in a single process' OutEdgeListS? I see that the distributed version of adjacency_list allows vertices to be distributed across multiple processes in a process group, but I don't see the ability to allow directed edges to be distributed across multiple processes. Is this an intentional limitation? caustik

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Re: [boost] [Boost-testing] [ratio] Intel compilers issue : internal error:assertion failed: copy_template_param_expr: bad expressionkind (shared/edgcpfe/il.c, line 12561)
by vicente.botet 05 Jan '11

05 Jan '11

Hi, sorry for cross-posting, but as no body answered on the Boost testing list ... Best, Vicente ----- Original Message ----- From: "vicente.botet" <vicente.botet(a)wanadoo.fr> To: "Running Boost regression tests" <boost-testing(a)lists.boost.org> Sent: Wednesday, January 05, 2011 8:56 AM Subject: [Boost-testing] [ratio] Intel compilers issue : internal error:assertion failed: copy_template_param_expr: bad expressionkind (shared/edgcpfe/il.c, line 12561) > Hi, > > on Intel compilers I have two test mpl_plus_pass.cpp and ratio_ext_pass.cpp that make this error. > > internal error: assertion failed: copy_template_param_expr: bad expression kind (shared/edgcpfe/il.c, line 12561) > > It seems that there is already an Intel ticket associated (tracker number #82149) see http://software.intel.com/en-us/forums/showthread.php?t=56558. > > Do someone know the state of this ticket and a workaround to this error for the failing tests? > > Thanks, > Vicente > _______________________________________________ > Boost-Testing mailing list > Boost-Testing(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-testing

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[BGL] problem w/ push_relabel_max_flow and floating point capacities
by Marc Schafer 05 Jan '11

05 Jan '11

Using the push_relabel_max_flow feature on graphs that have edge capacities in double or single precision often results in a failed assertion (line 706 push_relabel_max_flow.hpp) on debug builds although the answer provided is correct for builds with assertions disabled. The is_flow() method (line 564, push_relabel_max_flow.hpp) performs some consistency checking after the algorithm completes and there is an assertion that it returns true. The comparisons inside is_flow are done using ==, !=, >, and <. Using a locally modified version, I was able to see that all the cases where is_flow returns false are caused by errors on the order of machine precision. I believe the error is a faulty comparison mechanism inside is_flow rather than a problem with my graphs or the push_relabel_max_flow algorithm. -Marc

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[local] request SVN write access
by Lorenzo Caminiti 05 Jan '11

05 Jan '11

Hello, I would like to request write access to Boost SVN so I can commit Boost.Local. Boost.Local status is as follow: 1) Implemented and compiled on both MSVC and GCC. 2) Documented (using QuickBook). 3) There are examples to exercise all library features. 4) No regression tests yet. 5) Not peer-reviewed yet. I am not familiar with the process so I do not know at which point a Boost library under construction is committed into Boost SVN... please let me know if it is a good idea to commit Boost.Local or if I should wait. Thank you. -- Lorenzo

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[Trac] Request to add chrono component.
by Vicente Botet 05 Jan '11

05 Jan '11

Hi, Rene please, could someone add the chrono component on Trac system associated to my account viboes? Thanks, Vicente -- View this message in context: http://boost.2283326.n4.nabble.com/Trac-Request-to-add-chrono-component-tp3… Sent from the Boost - Dev mailing list archive at Nabble.com.

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[Review][Chrono] Boost.Chrono has been ACCEPTED into Boost
by Anthony Williams 05 Jan '11

05 Jan '11

Hi, I am pleased to announce that Boost.Chrono has been ACCEPTED into Boost. There were a reasonable number of reviews this time, and they were unanimous that Boost.Chrono should be accepted. Boost.Chrono provides the time facilities from the upcoming C++0x standard, so is an important base library. A few changes were requested by the reviewers which should be addressed before this library appears in a Boost release. I know that Vicente has already started working on some of these. The requested changes are: * The documentation needs revising to ensure everything is documented, and it is clear which time source is used for each clock type * The use of double underscores in identifiers should be stopped --- such identifiers are reserved for the implementation. * chrono::monotonic_clock will need renaming chrono::steady_clock to match the C++0x draft * the is_monotonic member of the clock types will need renaming is_steady to match the C++0x draft * Remove operator/ for dividing by a duration * Include examples for I/O in non-English languages * Remove "#if 0" blocks * Address all the "TODO" items in the source * Check the license on the time parsing code, and reimplement if the license is incompatible Apologies to the reviewers if I've missed anything. I would like to thank Vicente for submitting the library and those that took the time to write a review. Anthony -- Author of C++ Concurrency in Action http://www.stdthread.co.uk/book/ just::thread C++0x thread library http://www.stdthread.co.uk Just Software Solutions Ltd http://www.justsoftwaresolutions.co.uk 15 Carrallack Mews, St Just, Cornwall, TR19 7UL, UK. Company No. 5478976

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[Trac] Request to add ratio component.
by Vicente Botet 05 Jan '11

05 Jan '11

Hi, please, could someone add the ratio component on Trac system? Thanks, Vicente -- View this message in context: http://boost.2283326.n4.nabble.com/Trac-Request-to-add-ratio-component-tp31… Sent from the Boost - Dev mailing list archive at Nabble.com.

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