Subject: [boost] Reminder: [Review] Formal Review of Proposed Boost.Ratio Library IS UNDERWAY
From: Anthony Williams (anthony.ajw_at_[hidden])
Date: 2010-10-04 12:14:55
The review of Vicente Botet' Ratio library lasts until October 11th,
2010, unless an extension occurs. This is an important basic library, so
Anthony Williams <anthony.ajw_at_[hidden]> writes:
> What is it?
> Portable implementation of the C++0x Standard Library's compile-time
> rational arithmetic working on C++03 and C++0x compilers. See the
> current C++0x working draft at
> Boost.Ratio provides:
> * A class template, ratio, for specifying compile time rational
> constants such as 1/3 of a nanosecond or the number of inches per
> meter. ratio represents a compile time ratio of compile time constants
> with support for compile time arithmetic with overflow and division by
> zero protection
> * It provides a textual representation of boost::ratio<N, D> in the form
> of a std::basic_string. Other types such as boost::duration can use
> these strings to aid in their I/O.
> This library is header-only and is designed to be generic and useful in
> a lot of areas of math and numerics C++ programming, in particular it is
> absolutely needed for the proposed Boost.Chrono and Boost.Stopwatches
> libraries which are currently in the review queue.
> Getting the library
> The latest version of this library may be downloaded from
> vault: http://www.boostpro.com/vault/index.php?action=downloadfile&filename=ratio.zip&directory=Math%20-%20Numerics&
> SVN: http://svn.boost.org/svn/boost/sandbox/chrono (directories boost/ratio and libs/ratio)
> and the docs may be viewed here
> html: http://svn.boost.org/svn/boost/sandbox/chrono/libs/ratio/doc/html/index.html
> pdf: http://svn.boost.org/svn/boost/sandbox/chrono/libs/ratio/doc/ratio.pdf
> You can get all these information also (which should avoid some long
> links) from
> It is worth noting that the tests included in the zip file are
> relatively sparse. Vicente has an extensive suite of tests licensed
> under the LLVM license. He has posted a message on the Boost Developers
> mailing list regarding the license requirements for tests (See
> http://thread.gmane.org/gmane.comp.lib.boost.devel/208978), and is
> awaiting the outcome of that discussion before making the tests available.
> Writing a review
> If you feel this is an interesting library, then please submit your
> review to the developer list (preferably), or to the review manager.
> Here are some questions you might want to answer in your review:
> - What is your evaluation of the design?
> - What is your evaluation of the implementation?
> - What is your evaluation of the documentation?
> - What is your evaluation of the potential usefulness of the library?
> - Did you try to use the library? With what compiler? Did you have any problems?
> - How much effort did you put into your evaluation? A glance? A quick
> - reading? In-depth study?
> - Are you knowledgeable about the problem domain?
> And finally, every review should answer this question:
> - Do you think the library should be accepted as a Boost library?
> Be sure to say this explicitly so that your other comments don't
> obscure your overall opinion.
> Review Manager for the proposed Boost.Ratio library
-- 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