June 2012 - Boost - lists.preview.boost.org

[1.50] OK to merge documentation changes?
by John Maddock 10 Jun '12

10 Jun '12

I have some documentation changes that I'd like to merge: * Corrected typos in Boost.Math docs. * Updated some scripts and Jamfiles for correct PDF doc build generation. Is there a good time to commit these to release, or is it all to late for 1.50 now? Thanks, John.

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[git/modularization] Suggested names for branches?
by Beman Dawes 10 Jun '12

10 Jun '12

At the C++Now! session discussing moving to git and modularization, I showed the usual git flow overview graphic from http://nvie.com/posts/a-successful-git-branching-model/ showing the workflow for a library. Someone (Dave?) mentioned that the git flow choices for branch names were not what we would like for Boost. I agree, but don't recall the exact suggestions for more appropriate names. The three branches in question, with the git-flow names in parens, were the main development branch (develop), release prep branches (?), and the branch with actual releases (master). Is there a better usual convention for these names? I have a vague memory of someone mentioning "master" for the main development branch, "release" for the branch with the actual releases, and maybe "beta-x.xx.x" for release prep branches. To try to avoid an extended bicycle shed discussion, perhaps people could mention names they have actually seen used and know worked well. --Beman

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Re: [boost] [review] Multiprecision review scheduled for June 8th - 17th, 2012
by Marc Glisse 09 Jun '12

09 Jun '12

(sorry for the broken thread, I wasn't subscribed yet) A few quick comments: * gmpxx != mpfr_class * the version of gmpxx in the repository hasn't used any temporary for the example given in the introduction for a while, it is only because of a slow release cycle that you haven't seen it yet (will be in 5.1). * the example about using 0 vs 11 temporaries doesn't mention what happens to the boost package if we disable expression template. Does it use a single temporary (using rvalue-references) or plenty? * having an implicit narrowing conversion from double to bigint is a bad idea, it should be explicit (it isn't completely obvious from the doc if that is the case). * you could get good results with a backend that uses gmp's mpn_* functions but not the mpz_t type. * what about infinite precision floats? By that I mean something like bigint*2^n, where operations + - * are computed exactly. It can be quite a bit faster than rationals, when it is sufficient. * if I want reference-counting, I guess that should be done in a back-end. -- Marc Glisse

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C++Now! keynote videos are available
by Marshall Clow 08 Jun '12

08 Jun '12

Howard's was not recorded Daveed: http://www.youtube.com/watch?v=8SOCYQ033K8 Sean: http://www.youtube.com/watch?v=iGenpw2NeKQ The full list of videos is at: http://www.youtube.com/user/BoostCon (more will be added soon) -- Marshall Marshall Clow Idio Software <mailto:mclow.lists@gmail.com> A.D. 1517: Martin Luther nails his 95 Theses to the church door and is promptly moderated down to (-1, Flamebait). -- Yu Suzuki

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basic information: code post
by Majid Qureshi 08 Jun '12

08 Jun '12

Hi I am new to boost mailing list. I am wondering if I wish to submit my template class for review to be added as part of boost library, what do I need to do? and please advise if I am not suppose to send email to this mailing list for any such proposal. Also what mailing list do I need to send such emails? Very much appreciated.Thanks

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[Who's using boost?] Sankel Software
by David Sankel 08 Jun '12

08 Jun '12

Sankel Software Sankel Software has been using boost for over 10 years to develop high performance and customized CAD/CAM applications, industrial control, computer artistry, and business software. If it wasn't for Boost, we would have stopped using C++ long ago. Its libraries allow us to write more concise code and, more importantly, give us the tools to implement higher level constructs such as denotational semantics based, top-down program design. Home Page: http://sankelsoftware.com Here is a list of the libraries we currently use: - Boost.Any - Boost.Serialization - Boost.Array - Boost.Assign - Boost.Bind - Boost.Integer - Boost.DateTime - Boost.Foreach - Boost.Function - Boost.Fusion - Boost.Variant - Boost.Optional - Boost.LexicalCast - Boost.SmartPtr - Boost.Math - Boost.MPL - Boost.MultiIndex - Boost.Operators - Boost.Signals2 - Boost.Thread - Boost.Tuple - Boost.TypeTraits - Boost.Utility - David -- David Sankel Sankel Software www.sankelsoftware.com 585 617 4748 (Office)

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[1.50.0] Release branch open for bug fixes and doc updates
by Beman Dawes 07 Jun '12

07 Jun '12

The final release is scheduled for Monday, June 25th. The release candidate is scheduled to to be built Thursday, June 21st. That gives us two weeks to apply post-beta bug fixes and doc updates. Let's try a slightly more streamlined procedure for this post-beta period; until Monday, June 18th permission is not required to merge bug fixes and documentation updates. Starting June 18th permission of a release manager is required for all merges. As always, New libraries and new features are not allowed during a post-beta period. Thanks, --Beman

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[1.50] Can't build quickbook PDF docs.
by John Maddock 07 Jun '12

07 Jun '12

Just a note that the quickbook docs don't build as a PDF due to XML validation failures at the FO stage: fop.render.pdf ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.pdf M:/download/programs/xep/xep.bat ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.fo ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.pdf (document [system-id file:/M:/data/boost/branches/release/doc/pdf/../../bin.v2/tools/quickbook/doc/msvc-10.0/debug/link-static/threading-multi/quickbook.fo] (validate [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:inline'. [error] Attribute 'break-before' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:block'. [error] Attribute 'margin-left' cannot occur at element 'fo:block'. [error] Attribute 'font-family' cannot occur at element 'fo:block'. [error] Attribute 'keep-together.within-column' cannot occur at element 'fo:block'. [error] Attribute 'keep-with-next.within-column' cannot occur at element 'fo:block'. [error] Attribute 'font-family' cannot occur at element 'fo:block'. [error] Attribute 'font-weight' cannot occur at element 'fo:block'. [error] Attribute 'keep-with-next.within-column' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'text-align' cannot occur at element 'fo:block'. [error] Attribute 'start-indent' cannot occur at element 'fo:block'. [error] Attribute 'marker-class-name' cannot occur at element 'fo:marker'. [error] Element 'fo:marker' should be a descendant of 'flow'. [error] Attribute 'font-size' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:inline'. [error] Attribute 'internal-destination' cannot occur at element 'fo:basic-link'. [error] Attribute 'color' cannot occur at element 'fo:inline'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:block'. [error] Attribute 'border-color' cannot occur at element 'fo:block'. [error] Attribute 'border-width' cannot occur at element 'fo:block'. [error] Attribute 'border-style' cannot occur at element 'fo:block'. [error] Attribute 'padding-left' cannot occur at element 'fo:block'. [error] Attribute 'padding-right' cannot occur at element 'fo:block'. [error] Attribute 'padding-top' cannot occur at element 'fo:block'. [error] Attribute 'padding-bottom' cannot occur at element 'fo:block'. [error] Attribute 'widows' cannot occur at element 'fo:block'. [error] Attribute 'orphans' cannot occur at element 'fo:block'. [error] Attribute 'font-size' cannot occur at element 'fo:block'. [error] Attribute 'hyphenate' cannot occur at element 'fo:block'. etc. Any ideas? Thanks, John.

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status of sp_counted_base_solaris.hpp
by Graham Bennett 07 Jun '12

07 Jun '12

Hi all, I'm interested in getting boost::shared_ptr to use atomic ops on Solaris. I notice there is an implementation using the OS-provided atomics in boost/detail/sp_counted_base_solaris.hpp, but it doesn't seem to be included. According to this thread: http://lists.boost.org/Archives/boost/2006/07/107144.php, it seems the reason might be that it wasn't possible to come up with a proper preprocessor condition to include it on the right versions of Solaris. I'm considering modifying my boost installation to include this header on Solaris - does anyone know of any issues with the code, or can they confirm that it has been well tested? Are there any other reasons for its omission? Thanks, Graham -- Graham Bennett

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[review] Multiprecision review scheduled for June 8th - 17th, 2012
by Jeffrey Lee Hellrung, Jr. 07 Jun '12

07 Jun '12

Hi all, The review of the proposed Boost.Multiprecision library authored by John Maddock and Christopher Kormanyos has been scheduled for June 8th - June 17th, 2012 and will be managed by myself. >From the Introduction: -------- "The Multiprecision Library provides *User-defined* integer, rational and floating-point C++ types which try to emulate as closely as practicable the C++ built-in types, but provide for more range and precision. Depending upon the number type, precision may be arbitrarily large (limited only by available memory), fixed at compile time values, for example 50 decimal digits, or a variable controlled at run-time by member functions. The types are expression-template-enabled for better performance than naive user-defined types." -------- And from the original formal review request from John: -------- Features: * Expression template enabled front end. * Support for Integer, Rational and Floating Point types. Supported Integer backends: * GMP. * Libtommath. * cpp_int. cpp_int is an all C++ Boost licensed backend, supports both arbitrary precision types (with Allocator support), and signed and unsigned fixed precision types (with no memory allocation). There are also some integer specific functions - for Miller Rabin testing, bit fiddling, random numbers. Plus interoperability with Boost.Rational (though that loses the expression template frontend). Supported Rational Backends: * GMP * libtommath * cpp_int (as above) Supported Floating point backends: * GMP * MPFR * cpp_dec_float cpp_dec_float is an all C++ Boost licensed type, adapted from Christopher Kormanyos' e_float code (published in TOMS last year). All the floating point types, have full std lib support (cos sin exp, pow etc), as well as full interoperability with Boost.Math. There's nothing in principal to prevent extension to complex numbers and interval arithmetic types (plus any other number types I've forgotten!), but I've run out of energy for now ;-) Code is in the sandbox under /big_number/. Docs can be viewed online here: http://svn.boost.org/svn/boost/sandbox/big_number/libs/multiprecision/doc/h… -------- I hope everyone interested can reserve some time to read through the documentation, try the code out, and post a formal review, either during the formal review window or before. I expect to conduct the review in the "traditional" manner, i.e., entirely within the regular boost developers' mailing list (boost(a)lists.boost.org) I will send a reminder of review process details closer to the review window. Thanks! - Jeff

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