July 2012 - Boost - lists.boost.org

Re: [boost] Exact Decimal library
by Andrew Robb 02 Jul '12

02 Jul '12

I am proposing a Boost library for exact decimal numbers https://docs.google.com/document/d/19n-E8Mu-0MWCcNt0pQnFi2Osq-qdMDW6aCBweMK…<https://docs.google.com/document/d/19n-E8Mu-0MWCcNt0pQnFi2Osq-qdMDW6aCBweMK…> Message-ID: <33DFA071B6DD6D4FB44851BDE4A7259317128A(a)xchmbbal503.ds.susq.com> Andrew Robb wrote: > > Introduction [snip] > Exact Decimal [snip lots of information and reference links] The reason for your post is unclear. Are you proposing a Boost library? Are you asking for an indication of interest?

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[geometry] distance on multiline with spherical coordinates
by Karsten Ahnert 01 Jul '12

01 Jul '12

Hi, the following code produces some strange results: typedef cs::spherical_equatorial< boost::geometry::degree > cs_type; typedef model::point< double , 2, cs_type > point_type; typedef model::linestring< point_type > linestring_type; point_type p( 1.0 , 1.0 ); linestring_type l; l.push_back( point_type( 0.0 , 2.0 ) ); l.push_back( point_type( 2.0 , 2.0 ) ); l.push_back( point_type( 4.0 , 2.0 ) ); cout << "Distance : " << boost::geometry::distance( p , l ) << endl; for( size_t i=1 ; i<l.size() ; ++i ) { linestring_type l_tmp; l_tmp.push_back( l[i-1] ); l_tmp.push_back( l[i] ); cout << "Point distance : " << boost::geometry::distance( p , l_tmp ) << endl; } The output is Distance : 0.0174373 Point distance : 0.0174586 Point distance : 0.0174373 This looks like a bug. The distance to the second segment can not be smaller than that to the first one. If I change the coordinate system to cartesian coordinates everything works as expected. Do I miss some major points?

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boost::locale throw exception std::bad_cast
by Alex Ivanov 01 Jul '12

01 Jul '12

Here is code sample: boost::locale::generator gen; std::string text="To be or not to be, that is the question." ssegment_index map(word,text.begin(),text.end(),gen("en_US.UTF-8")); last line throw exception std::bad_cast The tests was made on tthe hosts: Darwin mac-os 10.4.0 Darwin Kernel Version 10.4.0 (gcc version 4.2.1) Linux fedora 2.6.34.9-69.fc13.x86_64 (gcc version 4.8.0 ) Linux fedora 2.6.34.7-66.fc13.x86_64 (gcc version 4.4.5) Linux debian 2.6.32-5-amd64 (gcc version 4.7.0) with boost_1_50_0_beta1 How can I handle this? -- реклама ----------------------------------------------------------- Распродажа % модной одежды. Скидки до 70%. Количество ограниченно! Подробнее на сайте Bonprix http://goo.gl/1qLK1

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