October 2006 - Boost - lists.preview.boost.org

spirit question
by Aljaz 12 Oct '06

12 Oct '06

Hello again.. I decided to go for Spirit to solve my problem (replacing $variable in string), and I made my own grammar to parse the string.. Now the problems that I have to face with and have no idea how to solve them: 1st) there should be keywords in the grammar/scanner class from some vector <string> which is outside the scanner class that scanner should look for (to be used with definition).. I have no idea what would be the right way to pass/give/read them from scanner class 2nd) when I find a match with scanner class I call [function(self.matched)].. How to pass 2 arguments or more? For instance I will have to pass 3 arguments from $random(1,2,3) + variable name.. so call_some_func("random", 1, 2, 3); How should I solve that? Maybe any example available? Thanks a lot for help Kind regards

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[mpl] BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS Problems
by Jared McIntyre 12 Oct '06

12 Oct '06

I have an extremely large mpl::map who's size doesn't fit in the pre defined map files. I'm trying to get mpl to process the map without using the preprocessed file. I've added a BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS define to the atdafx and a BOOST_MPL_LIMIT_MAP_SIZE where map is defined. It continues to want to use the file associated with BOOST_MPL_LIMIT_MAP_SIZE. BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS is definitely being defined before any mpl header files are loaded. Any thoughts? This is Boost 1.33.0 if that makes any difference. The attempt to load the file is on line 36 of map.hpp. Jared

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[Boost-bugs] [ boost-Bugs-1576175 ] directory_iterator doesn't work with catch
by SourceForge.net 12 Oct '06

12 Oct '06

Bugs item #1576175, was opened at 2006-10-12 13:12 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1576175&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: filesystem Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Beman Dawes (beman_dawes) Summary: directory_iterator doesn't work with catch Initial Comment: Fedora Core 4, gcc version 4.0.2 20051125 (Red Hat 4.0.2-8) The next construction doesn't work (but it works if directory_iterator is changed to some other iterator or just counter): path dir_path(dir_name); directory_iterator end_itr; try { for (directory_iterator itr(dir_name); itr!=end_itr; ++itr) { try { ...... } catch (...) { cout<<"First catch"<<endl; throw 20; } } } catch (...) { cout<<"Second catch"<<endl; } Result: First catch and stucked program, "strace" shows: "futex(0x...,FUTEX_WAIT,2,NULL". ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1576175&group_… ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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GIL Review: Sample code
by Lubomir Bourdev 12 Oct '06

12 Oct '06

Several people suggested to me in email that I should post some GIL sample code, so they get a feel of what GIL is like. My biggest recommendation: If you write a review, please spend an hour to watch the GIL video presentation. That will give you a better feel for GIL. You can also get extra sample GIL code snippets here: - in the tutorial (the Mandelbrot view section is not in the video) - section 15 of the design guide - http://opensource.adobe.com/gil/gil_sample_code.cpp - http://opensource.adobe.com/gil/numeric_example.cpp - http://opensource.adobe.com/gil/html/beforeafterexample.html Here are a few more: // To fill a view with blue template <typename View> void fill_blue(const View& view) { typename View::pixel_t blue; color_convert(rgb8_pixel_t(0,0,255),blue); fill_pixels(view,blue); } // To fill the top left quadrant of the image with blue void fill_blue_quadrant() { rgb8_image_t img; jpeg_read_image("test.jpg",img); fill_blue(subimage_view(view(img),0,0,img.width()/2, img.height()/2)); jpeg_write_view("blue_box.jpg",const_view(img)); } // Find the location of the grayscale pixel with highest magnitude // (or the first in a top-bottom left-right traversal, if multiple) template <typename GView> // Models Grayscale View typename GView::point_t max_gray_channel_coords(const GView& view) { assert(view.size()>0); typename GView::difference_type index = std::max_element(view.begin(),view.end()) - view.begin(); return typename GView::point_t(index % view.width(), index / view.width()); } // Find the location of the highest-intensity pixel in the view template <typename View> // Models ImageViewConcept typename View::point_t max_intensity_coords(const View& view) { return max_gray_channel_coords(color_converted_view<gray32f_pixel_t>(view)); } // Find the location in the grayscale view with the largest horizontal gradient magnitude template <typename GView> // Models grayscale image view typename GView::point_t max_gray_xgradient_coords(const GView& src) { typedef typename GView::channel_t channel_t; // the type of a grayscale image with the same channel as src typedef typename image_type<channel_t, gray_t>::type grad_image_t; // create a temp image of the same size as src grad_image_t buffer(get_dimensions(src)); // clear it (our sample x_gradient code doesn't touch the first and last column) fill_pixels(view(buffer),channel_t(0)); // call the generic x_gradient (see the tutorial for the code) x_gradient(src, view(buffer)); return max_gray_channel_coords(const_view(buffer)); } void test_max_gradient() { typedef point2<std::ptrdiff_t> point_t; rgb8_planar_image_t img; jpeg_read_image("test.jpg",img); point_t coords = max_gray_xgradient_coords(nth_channel_view(const_view(img),0)); cout << "Largest horizontal gradient of the RED CHANNEL: ("<<coords.x<<","<<coords.y<<")\n"; coords = max_gray_xgradient_coords(color_converted_view<gray32f_pixel_t>(const_vi ew(img))); cout << "Largest horizontal gradient of the LUMINOSITY: ("<<coords.x<<","<<coords.y<<")\n"; } Of course, the above functions like fill_blue, max_intensity_coords are fully generic. They work with images in any color space, any channel depth, interleaved and planar. Putting them in function objects will make them work for images with run-time specified types. Lubomir

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Cross compiling boost
by Bartosz Marcinkiewicz 12 Oct '06

12 Oct '06

Hello, I would like to cross-compile boost for XScale based system. Has anybody done this? I need to redefine commands: gcc, g++, ar, ld, as, strip, objdump, etc.. so during build process are executed commands from producer-provided toolchain (this is gcc-3.3.2 that produces binaries for XScale). Thankyou for any help, references to appropriate documentation are welcome. Best regards, bma.

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spirit question
by Aljaz 12 Oct '06

12 Oct '06

Hello again.. I decided to go for Spirit to solve my problem (replacing $variable in string), and I made my own grammar to parse the string.. Now the problems that I have to face with and have no idea how to solve them: 1st) there should be keywords in the grammar/scanner class from some vector <string> which is outside the scanner class that scanner should look for (to be used with definition).. I have no idea what would be the right way to pass/give/read them from scanner class 2nd) when I find a match with scanner class I call [function(self.matched)].. How to pass 2 arguments or more? For instance I will have to pass 3 arguments from $random(1,2,3) + variable name.. so call_some_func("random", 1, 2, 3); How should I solve that? Maybe any example available? Thanks a lot for help Kind regards

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boost::spirit problems
by Aljaz 12 Oct '06

12 Oct '06

Hello again.. I decided to go for Spirit to solve my problem (replacing $variable in string), and I made my own grammar to parse the string.. Now the problems that I have to face with and have no idea how to solve them: 1st) there should be keywords in the grammar/scanner class from some vector <string> which is outside the scanner class that scanner should look for (to be used with definition).. I have no idea what would be the right way to pass/give/read them from scanner class 2nd) when I find a match with scanner class I call [function(self.matched)].. How to pass 2 arguments or more? For instance I will have to pass 3 arguments from $random(1,2,3) + variable name.. so call_some_func("random", 1, 2, 3); How should I solve that? Maybe any example available? Thanks a lot for help Kind regards

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[ptr_container] request to make ptr_map expected failure on HP-UX/aCC
by Boris Gubenko 12 Oct '06

12 Oct '06

On both Tru64/cxx and HP-UX/aCC, the only failing ptr_container library test is ptr_map. On both platforms, it fails to compile with the same compilation errors: "../libs/ptr_container/test/ptr_map.cpp", line 328: error #2158: expression must be an lvalue or a function designator map_type::pointer a_pointer = &*m2.begin(); "../libs/ptr_container/test/ptr_map.cpp", line 330: error #2158: expression must be an lvalue or a function designator map_type::const_pointer a_cpointer = &*const_begin(m2); In the explicit-failures-markup, ptr_map is marked as expected failure for a number of toolsets including "hp_cxx-71_006_tru64". Based on the above, can "acc" be added to the list of toolsets for this test, in both CVS head and the RC branch? For now, because of this test, on metacomm test site, the ptr_container library appears as broken on HP-UX/aCC. The Note by Thorsten Ottosen associated with ptr_map states, that "For hp, this compiler bug is insignificant.". What exactly the bug is? We want to be sure, that EDG is aware of it. If nobody knows or remembers what the bug is, we'll investigate. Thanks, Boris Gubenko HP C++ team

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Boost.SQL, SOCI and beyond
by Nicola Musatti 12 Oct '06

12 Oct '06

Hallo, a few months ago there was a discussion on how a database interface library would be a welcome addition to TR2 and the SOCI developers suggested that SOCI could be a valid candidate for that role (http://article.gmane.org/gmane.comp.lib.boost.devel/140816) They also mentioned their intention to make SOCI ready for submission to Boost. Was any progress made on this issue? Is there any interest in reopening the discussion on such a library, SOCI submission notwithstanding? Cheers, Nicola Musatti

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Boost inspection notification (2006-10-12/RC_1_34_0) *X*
by Rene Rivera 12 Oct '06

12 Oct '06

Boost Inspection Report Run Date: 16:02:46 UTC, Thursday 12 October 2006 An inspection program <http://www.boost.org/tools/inspect/index.html> checks each file in the current Boost CVS for various problems, generating this as output. Problems detected include tabs in files, missing copyrights, broken URL's, and similar misdemeanors. Totals: 11686 files scanned 904 directories scanned (including root) 159 problems reported Problem counts: 0 files with invalid line endings 0 bookmarks with invalid characters 3 invalid urls 89 broken links 24 unlinked files 7 file/directory names issues 1 files with tabs 0 violations of the Boost min/max guidelines 35 usages of unnamed namespaces in headers (including .ipp files) Summary: archive (3) bind (1) boost-root (1) build (3) date_time (1) doc (2) filesystem (36) graph (3) iostreams (2) iterator (2) lambda (3) mpl (1) multi_array (2) parameter (2) ptr_container (1) regex (1) regression (13) serialization (1) signals (1) test (79) type_traits (1) Details: *R* invalid (cr only) line-ending *A* invalid bookmarks, invalid urls, broken links, unlinked files *N* file/directory names issues *T* tabs in file *M* uses of min or max that have not been protected from the min/max macros, or unallowed #undef-s *U* unnamed namespace in header |archive| boost/archive/basic_streambuf_locale_saver.hpp: *N* name exceeds 31 characters boost/archive/impl/xml_wiarchive_impl.ipp: *U* unnamed namespace at line 53 boost/archive/iterators/remove_whitespace.hpp: *U* unnamed namespace at line 57 |bind| boost/bind/placeholders.hpp: *U* unnamed namespace at line 25 |boost-root| index.htm: *A* broken link: ../doc/html/signals.html |build| tools/build/v1/variables.html: *A* unlinked file tools/build/v2/example/make/main.cpp.pro: *N* name contains more than one dot character ('.') tools/build/v2/test/test_system.html: *A* unlinked file |date_time| libs/date_time/xmldoc/date_time_docs_howto.html: *A* unlinked file |doc| doc/html/boost_math/inverse_complex.html: *A* unlinked file doc/html/jam.html: *A* unlinked file |filesystem| libs/filesystem/doc/do-list.htm: *A* invalid URL (hardwired file): file://?/ *A* invalid URL (hardwired file): file://?/UNC/ libs/filesystem/doc/i18n.html: *A* broken link: convenience.htm#basic_recursive_directory_iterator *A* broken link: exception.htm *A* broken link: operations.htm *A* broken link: operations.htm#Do-the-right-thing *A* broken link: operations.htm#is_directory *A* broken link: operations.htm#is_file *A* broken link: operations.htm#status libs/filesystem/doc/index.htm: *A* broken link: convenience.htm *A* broken link: fstream.htm *A* broken link: operations.htm#create_directory *A* broken link: operations.htm#create_hard_link *A* broken link: operations.htm#current_path *A* broken link: operations.htm#directory_iterator *A* broken link: operations.htm#equivalent *A* broken link: operations.htm#file_size *A* broken link: operations.htm#initial_path *A* broken link: operations.htm#is_file *A* broken link: operations.htm#is_symlink *A* broken link: operations.htm#status *A* broken link: operations.htm#symlink_status *A* broken link: path.htm#Canonical *A* broken link: path.htm#Grammar *A* broken link: path.htm#Normalized *A* broken link: path.htm#default_name_check *A* broken link: path.htm#name_check_mechanism *A* broken link: path.htm#normalize *A* broken link: path.htm#operator_eq *A* broken link: path.htm#synopsis libs/filesystem/doc/portability_guide.htm: *A* broken link: path.htm#name_check_typedef libs/filesystem/doc/tr2_proposal.html: *A* invalid URL (hardwired file): file:///C|/boost/site/libs/filesystem/doc/operations.htm#complete_note |graph| boost/graph/maximum_cardinality_matching.hpp: *N* name exceeds 31 characters libs/graph/doc/lengauer_tarjan_dominator_tree.htm: *N* name exceeds 31 characters libs/graph/doc/sorted_erdos_renyi_generator.html: *N* name exceeds 31 characters |iostreams| libs/iostreams/doc/acknowledgments.html: *A* unlinked file libs/iostreams/doc/concepts/multi-character.html: *A* unlinked file |iterator| libs/iterator/doc/issues.html: *A* unlinked file libs/iterator/doc/ref_problem.html: *A* unlinked file |lambda| boost/lambda/core.hpp: *U* unnamed namespace at line 62 boost/lambda/detail/lambda_functors.hpp: *U* unnamed namespace at line 25 boost/lambda/exceptions.hpp: *U* unnamed namespace at line 24 |mpl| boost/mpl/alias.hpp: *U* unnamed namespace at line 17 |multi_array| boost/multi_array/base.hpp: *U* unnamed namespace at line 69 libs/multi_array/test/generative_tests.hpp: *U* unnamed namespace at line 57 |parameter| libs/parameter/doc/html/python.html: *A* broken link: tag::x(int *A* broken link: tag::y*(int |ptr_container| libs/ptr_container/doc/tutorial_example.html: *A* unlinked file |regex| libs/regex/performance/input.html: *A* unlinked file |regression| regression/.htaccess: *N* leading character of ".htaccess" is not alphabetic tools/regression/xsl_reports/xsl/html/issues_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/library_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/library_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/make_tinyurl.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/summary_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/summary_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/issues_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/library_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/library_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/make_tinyurl.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/summary_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/summary_user_legend.html: *A* unlinked file |serialization| libs/serialization/src/basic_xml_grammar.ipp: *U* unnamed namespace at line 43 |signals| boost/signals/detail/named_slot_map.hpp: *T* |test| boost/test/floating_point_comparison.hpp: *U* unnamed namespace at line 206 *U* unnamed namespace at line 228 boost/test/impl/cpp_main.ipp: *U* unnamed namespace at 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namespace at line 43 boost/test/utils/runtime/cla/modifier.hpp: *U* unnamed namespace at line 34 boost/test/utils/runtime/env/modifier.hpp: *U* unnamed namespace at line 34 boost/test/utils/runtime/file/config_file.hpp: *U* unnamed namespace at line 169 *U* unnamed namespace at line 64 *U* unnamed namespace at line 74 boost/test/utils/runtime/file/config_file_iterator.hpp: *U* unnamed namespace at line 68 boost/test/utils/trivial_singleton.hpp: *U* unnamed namespace at line 52 *U* unnamed namespace at line 61 libs/test/build/msvc71_proj/config_file_iterator_test.vcproj: *N* name exceeds 31 characters libs/test/doc/components/prg_exec_monitor/index.html: *A* broken link: ../../../../../boost/test/cpp_main.hpp libs/test/doc/components/test_tools/index.html: *A* broken link: ../../tests/boost_check_equal_str.html libs/test/doc/components/test_tools/reference/BOOST_CHECK_CLOSE.html: *A* broken link: BOOST_CHECK_CLOSE_FRACTION.html 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