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Re: [boost] [Boost-users] The last (I think) of the Boostcon videos
by Pascal Dennerly 15 Jul '11

15 Jul '11

Definite +1 from me too! Although I'm still having problems viewing http://blip.tv/boostcon/haskell-the-pseudocode-language-for-c-template-meta…. Keeps on telling me "Sorry, this episode may have just been added to blip.tv and isn't quite ready to watch yet. Please try again later." Does anyone else see this? Pascal

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[Spirit] bin_float parser
by Vitaly Budovski 15 Jul '11

15 Jul '11

Hi, Now that Boost 1.47 has been released, I'm hoping to get the following parsers added for the next version. Attempt #2, which has hopefully addressed all of the issues from the previous submission. Please see attached diffs and test case. Cheers, Vitaly

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BOOST_DATE_TIME_NO_LIB
by gpolo1＠tampabay.rr.com 15 Jul '11

15 Jul '11

Without the #define, boost tries to automatically link with the appropriate library. It just so happens that my boost installation does not have this library. So I was wondering if I even need this library? Aren't all boost classes compiled via hpp. I #defined BOOST_DATE_TIME_NO_LIB in my header file and the program compiles and works fine. So what is the purpose of this definition. I am using boost 1.32 along with Visual Studio 6.0. I have compiled it on Linux successfully, but I have not ran it yet.

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Query regarding Boost 1.47.0
by Kumar, Nilesh 14 Jul '11

14 Jul '11

Hi, I have read the Release notes. I wanted to confirm a few things with respect to Boost 1.47.0 : 1. Is RHEL 5.5 supported? 2. Is there a 64-bit support? Thanks and regards, Nilesh ---------------------------------------------------------------------- This message w/attachments (message) is intended solely for the use of the intended recipient(s) and may contain information that is privileged, confidential or proprietary. If you are not an intended recipient, please notify the sender, and then please delete and destroy all copies and attachments, and be advised that any review or dissemination of, or the taking of any action in reliance on, the information contained in or attached to this message is prohibited. Unless specifically indicated, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Sender. Subject to applicable law, Sender may intercept, monitor, review and retain e-communications (EC) traveling through its networks/systems and may produce any such EC to regulators, law enforcement, in litigation and as required by law. The laws of the country of each sender/recipient may impact the handling of EC, and EC may be archived, supervised and produced in countries other than the country in which you are located. This message cannot be guaranteed to be secure or free of errors or viruses. Attachments that are part of this EC may have additional important disclosures and disclaimers, which you should read. By messaging with Sender you consent to the foregoing.

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TTI library review appeal
by Edward Diener 14 Jul '11

14 Jul '11

Congratulations to all those involved in getting Boost 1.4.7 out the door. Now that it is finished, please consider reviewing my TTI library if you are at all interested in template metaprogramming and type traits introspection. Eddie Diener

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[AutoIndex] The AutoIndex tool is now in Boost Trunk.
by John Maddock 14 Jul '11

14 Jul '11

AutoIndex is now in Trunk, there are numerous small improvements based on the feedback from the review, so those existing users are encouraged to upgrade to the latest and greatest. I made some changes to the way HTML indexes are produced, so that formatting is now handled by the stylesheets, if anyone would like to suggest improvements to the CSS I'm sure they'd be most welcome, examples here: http://svn.boost.org/svn/boost/trunk/libs/type_traits/doc/html/index/s14.ht… Regards, John.

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Fwd: [Boost-users] [units] combined systems and prefixes and output
by Matthias Schabel 14 Jul '11

14 Jul '11

Can you include your atomic.hpp? Matthias > From: alfC <alfredo.correa(a)gmail.com> > Date: July 6, 2011 1:16:11 PM PDT > To: boost-users(a)lists.boost.org > Subject: [Boost-users] [units] combined systems and prefixes and output > Reply-To: boost-users(a)lists.boost.org > > Hi, > > After some effort I managed to add a new system to boost units > (namely "atomic"). The system works so far until I start using si > prefixes in combination and printing > > int main(){ > clog << 4.*atomic::hbar << endl; // output: 4 hbar > clog << 4.*(si::femto*si::second) << endl; // output: 4 fs > clog << 4.*(atomic::hbar/si::second) << endl; // output: 4 s^-1 hbar > auto a = atomic::hbar/(si::femto*si::second); // ok > clog << a << endl; // output: P(s^-1 hbar) > auto b = 4.*atomic::hbar/(si::femto*si::second); // ok > > clog << b << endl; // error!!!! why? > > return 0; > } > > As you see all lines work as expected except for the last line. Is > there a workaround? do I need to define prefixes specific for the > other system of units? > > The error message boils down to: > > usr/include/boost/units/detail/linear_algebra.hpp:197:48: error: no > type named ‘item’ in ‘struct > boost::units::list<boost::units::list<boost::units::static_rational<0l, > 1l>, boost::units::list<boost::units::static_rational<1l>, > boost::units::dimensionless_type> >, > boost::units::dimensionless_type>::next’ > > also I defined hbar as > > struct reduced_planck_constant_base_unit : base_unit< > reduced_planck_constant_base_unit, > action_dimension, > 3 > >{ > static string name(){return ("reduced Planck constant");} > static string symbol() {return ("hbar");} > }; > static const action hbar; > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users

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[1.47.0] Release notice
by Beman Dawes 14 Jul '11

14 Jul '11

Release 1.47.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release contains four new libraries (Chrono, Geometry, Phoenix, Ratio) and numerous enhancements and bug fixes for existing libraries. For details, including download links, see http://www.boost.org/users/news/version_1_47_0 The release can also be downloaded directly from SourceForge. See http://sourceforge.net/projects/boost/files/ To install this release on your system, see http://www.boost.org/doc/libs/release/more/getting_started/index.html Thanks, --The Boost release team Beman Dawes Daniel James Eric Niebler Rene Rivera Vladimir Prus

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problems with the Random library in Boost v1.47
by Hongyu Miao 14 Jul '11

14 Jul '11

Hi, All Sorry to bother you with this. I met a problem with the Random library in the latest release v1.47. The following code works well for v1.46.1: double unirand_real(double a, double b) { // Create a random number generator engine static boost:: mt19937 rng_real(static_cast<unsigned int>(std::time(0))); // select Uniform probability distribution boost::uniform_real<double> dist(a, b); // bind random number generator to distribution, forming a function boost:: variate_generator < boost:: mt19937 &, boost::uniform_real<double> > sampler(rng_real, dist); // sample from the distribution return sampler(); } However, when I adopted my code to v1.47, the following code failed due to memory access violation after a number of function calls: double unirand_real(double a, double b) { // Create a random number generator engine static boost::random::mt19937 rng_real(static_cast<unsigned int>(std::time(0))); // select Uniform probability distribution boost::random::uniform_real_distribution<> dist(a, b); // return random sample return dist(rng_real); } I will appreciate your help with this problem as right now I think the Random library may have a bug. Best, Jacky

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memory leak
by Aleksa Karalejic 14 Jul '11

14 Jul '11

Hi there, Today I have noticed memory leak in thread library - libboost_thread-vc80-mt-gd-1_46_1.lib. I am using vs2005 and pure _crtdumpmemoryleaks() fires memory leak detected in boost: one 16 bytes and another 36 bytes long. I didn't build libs by my own, but used boostpro for installing 1.46.1 version. Also I can't say where is the leak since I don't have any precise memory leak cacher. Then I tried with new version libboost_thread-vc80-mt-gd-1_47.lib, but worse - it fires five memory leaks (118 bytes all). Memory leak test is pure: #include <boost/thread.hpp> int main() { _CrtDumpMemoryLeaks(); } Best Regards, Aleksandar

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