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

[gil] Indexed Images
by Christian Henning 10 Nov '06

10 Nov '06

Hi there, I'm playing around with indexed images in GIL. My starting point was an email from Lubomir during the review. Here is what I have: struct indexed_pixel_deref_fn { typedef pixel_traits<rgb8_pixel_t>::reference reference; typedef pixel_traits<rgb8_pixel_t>::const_reference const_reference; typedef const_reference const_t; typedef reference result_type; typedef rgb8_pixel_t value_type; static const bool is_mutable = false; indexed_pixel_deref_fn( rgb8_pixel_t* table ) : _table( table ) {} rgb8_pixel_t operator()( const gray8_pixel_t& index ) const { return _table[index[0]]; } rgb8_pixel_t* _table; }; typedef gray8_view_t::add_deref<indexed_pixel_deref_fn> indexed_factory_t; typedef indexed_factory_t::type rgb8_indexed_view_t; int _tmain(int argc, _TCHAR* argv[]) { // create color lookup table rgb8_pixel_t rgb_black( 0, 0, 0 ); rgb8_pixel_t rgb_red( 255, 0, 0 ); rgb8_pixel_t my_index_table[2]; my_index_table[0] = rgb_red; my_index_table[1] = rgb_black; // create indexed image gray8_image_t indexed_img( 10,10 ); fill_pixels( view( indexed_img ), unsigned char( 0 ) ); rgb8_indexed_view_t indexed_view= indexed_factory_t::make( view( indexed_img ) , indexed_pixel_deref_fn( &my_index_table[0] )); // color convert the indexed image into an rgb8 image rgb8_image_t rgb_img( indexed_img.dimensions() ); copy_pixels( color_converted_view<rgb8_pixel_t>( view( indexed_img )) , view( rgb_img ) ); // save image - it should be all red jpeg_write_view( "test.jpg", const_view( rgb_img )); return 0; } I'm not sure if all these typedefs in the deref functor class are correct. Esspecially, I don't know what the const_t is for. So, my problem is the operator() in my deref isn't called at all. That shows me there is something wrong. Anyone, any idea why? Thanks, Christian

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Boost inspection notification (2006-11-10/RC_1_34_0) *X*
by Rene Rivera 10 Nov '06

10 Nov '06

Boost Inspection Report Run Date: 17:06:40 UTC, Friday 10 November 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: 11422 files scanned 891 directories scanned (including root) 243 problems reported Problem counts: 0 files with invalid line endings 0 bookmarks with invalid characters 3 invalid urls 176 broken links 21 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 (2) date_time (1) doc (2) filesystem (37) fusion (1) graph (3) inspect (1) interprocess (1) iostreams (4) lambda (4) more (66) mpl (1) multi_array (2) numeric (1) parameter (2) program_options (1) ptr_container (1) python (7) regex (1) regression (14) serialization (1) signals (1) test (81) tuple (1) type_traits (1) utility (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/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: ../build/Jamfile *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: 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libs/iostreams/doc/concepts/multi-character.html: *A* unlinked file libs/iostreams/doc/installation.html: *A* broken link: ../../../tools/build/v1/build_system.htm |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 libs/lambda/doc/index.html: *A* broken link: ../../LICENSE_1_0.txt |more| more/getting_started.html: *A* broken link: ../Jamfile *A* broken link: ../tools/build/v1/borland-tools.html *A* broken link: ../tools/build/v1/build_system.htm *A* broken link: ../tools/build/v1/build_system.htm#build *A* broken link: ../tools/build/v1/como-tools.html *A* broken link: ../tools/build/v1/cw-tools.html *A* broken link: ../tools/build/v1/darwin-tools.html *A* broken link: ../tools/build/v1/dmc-stlport-tools.html *A* broken link: ../tools/build/v1/dmc-tools.html *A* broken link: ../tools/build/v1/edg-tools.html *A* broken link: 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../tools/build/v1/vc7-stlport-tools.html *A* broken link: ../tools/build/v1/vc7-tools.html more/version_history.html: *A* broken link: ../tools/build/v1/intel-linux-tools.html *A* broken link: ../tools/build/v1/intel-win32-tools.html *A* broken link: ../tools/build/v1/msvc-stlport-tools.html |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 |numeric| libs/numeric/conversion/index.html: *A* broken link: ../../LICENSE_1_0.txt |parameter| libs/parameter/doc/html/python.html: *A* broken link: tag::x(int *A* broken link: tag::y*(int |program_options| libs/program_options/doc/index.html: *A* broken link: ../.../../LICENSE_1_0.txt |ptr_container| libs/ptr_container/doc/tutorial_example.html: *A* unlinked file |python| libs/python/doc/building.html: *A* broken link: ../../../tools/build/v1/build_system.htm *A* broken link: 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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/compilation.html: *A* broken link: ../../../build/Jamfile 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* 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Boost regression notification (2006-11-10 [RC_1_34_0])
by Douglas Gregor 10 Nov '06

10 Nov '06

Boost Regression test failures Report time: 2006-11-10T12:50:37Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/i… The following platforms have a large number of failures: borland-5.8.2 937 failures in 46 libraries (241 are from non-broken platforms) algorithm/minmax (1 of 4 failures are from non-broken platforms) algorithm/string (6 of 19 failures are from non-broken platforms) any (0 of 1 failures are from non-broken platforms) array (0 of 6 failures are from non-broken platforms) bind (0 of 19 failures are from non-broken platforms) config (0 of 3 failures are from non-broken platforms) conversion (0 of 3 failures are from non-broken platforms) date_time (39 of 129 failures are from non-broken platforms) disjoint_sets (1 of 3 failures are from non-broken platforms) dynamic_bitset (0 of 4 failures are from non-broken platforms) filesystem (6 of 18 failures are from non-broken platforms) foreach (1 of 14 failures are from non-broken platforms) function (0 of 8 failures are from non-broken platforms) functional (0 of 1 failures are from non-broken platforms) functional/hash (0 of 24 failures are from non-broken platforms) graph (2) integer (0 of 2 failures are from non-broken platforms) iostreams (35 of 91 failures are from non-broken platforms) iterator (13 of 40 failures are from non-broken platforms) logic (0 of 3 failures are from non-broken platforms) math (0 of 8 failures are from non-broken platforms) mpl (54 of 165 failures are from non-broken platforms) numeric/conversion (0 of 1 failures are from non-broken platforms) numeric/interval (0 of 5 failures are from non-broken platforms) optional (0 of 5 failures are from non-broken platforms) parameter (17 of 41 failures are from non-broken platforms) program_options (7) property_map (0 of 1 failures are from non-broken platforms) random (2 of 4 failures are from non-broken platforms) range (8 of 24 failures are from non-broken platforms) rational (1 of 4 failures are from non-broken platforms) regex (0 of 34 failures are from non-broken platforms) serialization (17 of 45 failures are from non-broken platforms) signals (5 of 15 failures are from non-broken platforms) smart_ptr (0 of 11 failures are from non-broken platforms) spirit (1) statechart (4) static_assert (0 of 2 failures are from non-broken platforms) test (3 of 11 failures are from non-broken platforms) thread (0 of 1 failures are from non-broken platforms) tokenizer (6 of 18 failures are from non-broken platforms) tr1 (0 of 49 failures are from non-broken platforms) type_traits (0 of 50 failures are from non-broken platforms) utility (2 of 11 failures are from non-broken platforms) variant (8 of 24 failures are from non-broken platforms) xpressive (2) Test failures marked with a (*) represent tests that failed on platforms that are considered broken. They are likely caused by misconfiguration by the regression tester or a failure in a core library such as Test or Config. |algorithm/minmax| minmax: borland-5.8.2* minmax_element: borland-5.6.4 borland-5.8.2* borland-5.8.2* |algorithm/string| conv: borland-5.6.4 borland-5.8.2* borland-5.8.2* find: borland-5.6.4 borland-5.8.2* borland-5.8.2* join: borland-5.6.4 borland-5.8.2* borland-5.8.2* predicate: borland-5.6.4 borland-5.8.2* borland-5.8.2* replace: borland-5.6.4 borland-5.8.2* borland-5.8.2* split: borland-5.6.4 borland-5.8.2* borland-5.8.2* trim: borland-5.8.2* |any| any_test: borland-5.8.2* |array| array0: borland-5.8.2* array1: borland-5.8.2* array2: borland-5.8.2* array3: borland-5.8.2* array4: borland-5.8.2* array5: borland-5.8.2* |bind| bind_const_test: borland-5.8.2* bind_cv_test: borland-5.8.2* bind_dm2_test: borland-5.8.2* bind_dm_test: borland-5.8.2* bind_eq_test: borland-5.8.2* bind_function_test: borland-5.8.2* bind_lookup_problem_test: borland-5.8.2* bind_not_test: borland-5.8.2* bind_rel_test: borland-5.8.2* bind_rv_sp_test: borland-5.8.2* bind_stateful_test: borland-5.8.2* bind_test: borland-5.8.2* bind_visit_test: borland-5.8.2* mem_fn_derived_test: borland-5.8.2* mem_fn_dm_test: borland-5.8.2* mem_fn_eq_test: borland-5.8.2* mem_fn_rv_test: borland-5.8.2* mem_fn_test: borland-5.8.2* mem_fn_void_test: borland-5.8.2* |config| abi_test: borland-5.8.2* config_info: borland-5.8.2* config_link_test: borland-5.8.2* |conversion| cast_test: borland-5.8.2* implicit_cast: borland-5.8.2* numeric_cast_test: borland-5.8.2* |date_time| testc_local_adjustor: borland-5.6.4 borland-5.8.2* borland-5.8.2* testclock: borland-5.6.4 borland-5.8.2* borland-5.8.2* testconstrained_value: borland-5.8.2* testcustom_time_zone: borland-5.8.2* borland-5.8.2* testdate: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_duration: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_duration_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_input_facet: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_input_facet_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_iterator: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdate_iterator_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdst_rules: borland-5.6.4 borland-5.8.2* borland-5.8.2* testdst_transition_day_rule: borland-5.6.4 borland-5.8.2* borland-5.8.2* testduration: borland-5.6.4 borland-5.8.2* borland-5.8.2* testfiletime_functions: borland-5.6.4 borland-5.8.2* borland-5.8.2* testformatters: borland-5.6.4 borland-5.8.2* borland-5.8.2* testformatters_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgenerators: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgenerators_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgeneric_period: borland-5.8.2* testgreg_duration_operators: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgreg_durations: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgreg_durations_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgreg_serialize: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgreg_serialize_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgreg_serialize_xml: borland-5.6.4 borland-5.8.2* borland-5.8.2* testgregorian_calendar: borland-5.8.2* testint_adapter: borland-5.8.2* testiterator: borland-5.6.4 borland-5.8.2* borland-5.8.2* testlocal_adjustor: borland-5.6.4 borland-5.8.2* borland-5.8.2* testmicrosec_time_clock: borland-5.6.4 borland-5.8.2* borland-5.8.2* testparse_time: borland-5.6.4 borland-5.8.2* borland-5.8.2* testperiod: borland-5.6.4 borland-5.8.2* borland-5.8.2* testperiod_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* testposix_time_zone: borland-5.8.2* borland-5.8.2* testtime: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_formatters: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_period: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_resolution_traits: borland-5.8.2* testtime_serialize: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_serialize_std_config: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_serialize_xml: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtime_serialize_xml_std_config: borland-5.6.4 borland-5.8.2* borland-5.8.2* testtz_database: borland-5.8.2* borland-5.8.2* testwcustom_time_zone: borland-5.6.4 borland-5.8.2* borland-5.8.2* testwposix_time_zone: borland-5.6.4 borland-5.8.2* borland-5.8.2* testwrapping_int: borland-5.8.2* |disjoint_sets| disjoint_set_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* |dynamic_bitset| dyn_bitset_unit_tests1: borland-5.8.2* dyn_bitset_unit_tests2: borland-5.8.2* dyn_bitset_unit_tests3: borland-5.8.2* dyn_bitset_unit_tests4: borland-5.8.2* |filesystem| convenience_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* fstream_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* large_file_support_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* operations_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* path_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_ls: borland-5.6.4 borland-5.8.2* borland-5.8.2* |foreach| array_byref: borland-5.8.2* array_byval: borland-5.8.2* call_once: borland-5.8.2* cstr_byref: borland-5.8.2* cstr_byval: borland-5.8.2* dependent_type: borland-5.8.2* noncopyable: borland-5.6.4 borland-5.8.2* borland-5.8.2* pair_byref: borland-5.8.2* pair_byval: borland-5.8.2* stl_byref: borland-5.8.2* stl_byval: borland-5.8.2* user_defined: borland-5.8.2* |function| contains2_test: borland-5.8.2* contains_test: borland-5.8.2* function_arith_portable: borland-5.8.2* function_n_test: borland-5.8.2* function_ref_portable: borland-5.8.2* mem_fun_portable: borland-5.8.2* std_bind_portable: borland-5.8.2* sum_avg_portable: borland-5.8.2* |functional| function_test: borland-5.8.2* |functional/hash| books: borland-5.8.2* container_fwd_test: borland-5.8.2* hash_built_in_array_test: borland-5.8.2* hash_custom_test: borland-5.8.2* hash_deque_test: borland-5.8.2* hash_float_test: borland-5.8.2* hash_friend_test: borland-5.8.2* hash_function_pointer_test: borland-5.8.2* hash_fwd_test_1: borland-5.8.2* hash_fwd_test_2: borland-5.8.2* hash_list_test: borland-5.8.2* hash_map_test: borland-5.8.2* hash_no_ext_macro_1: borland-5.8.2* hash_no_ext_macro_2: borland-5.8.2* hash_number_test: borland-5.8.2* hash_pointer_test: borland-5.8.2* hash_range_test: borland-5.8.2* hash_set_test: borland-5.8.2* hash_string_test: borland-5.8.2* hash_value_array_test: borland-5.8.2* hash_vector_test: borland-5.8.2* link_ext_test: borland-5.8.2* link_test: borland-5.8.2* portable: borland-5.8.2* |graph| adj_list_cc: qcc-3.3.5_gpp king_ordering: gcc-3.4.5_linux |integer| cstdint_test: borland-5.8.2* integer_test: borland-5.8.2* |iostreams| array_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* auto_close_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* buffer_size_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* bzip2_test: msvc-7.1 msvc-8.0 code_converter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* component_access_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* compose_test: borland-5.8.2* borland-5.8.2* copy_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* counter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* direct_adapter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* example_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* file_descriptor_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* cw-9.4 file_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* filtering_stream_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* finite_state_filter_test: cw-9.4 flush_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* gzip_test: msvc-7.1 msvc-8.0 invert_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* line_filter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* mapped_file_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* cw-9.4 newline_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* null_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* pipeline_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* regex_filter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* restrict_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* seekable_file_test: borland-5.8.2* borland-5.8.2* seekable_filter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* stdio_filter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* symmetric_filter_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* tee_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* wide_stream_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* zlib_test: msvc-7.1 msvc-8.0 |iterator| concept_tests: borland-5.6.4 borland-5.8.2* borland-5.8.2* counting_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* filter_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* indirect_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* interoperable: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_adaptor_cc: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_adaptor_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_archetype_cc: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_facade: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_traits_test: borland-5.8.2* permutation_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* reverse_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* transform_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* unit_tests: borland-5.6.4 borland-5.8.2* borland-5.8.2* |logic| tribool_io_test: borland-5.8.2* tribool_rename_test: borland-5.8.2* tribool_test: borland-5.8.2* |math| octonion_test: borland-5.8.2* borland-5.8.2* quaternion_mult_incl_test: borland-5.8.2* borland-5.8.2* quaternion_test: borland-5.8.2* borland-5.8.2* special_functions_test: borland-5.8.2* borland-5.8.2* |mpl| always: borland-5.6.4 borland-5.8.2* borland-5.8.2* apply_wrap: borland-5.8.2* borland-5.8.2* bind: borland-5.6.4 borland-5.8.2* borland-5.8.2* bool: borland-5.8.2* contains: borland-5.6.4 borland-5.8.2* borland-5.8.2* copy: borland-5.6.4 borland-5.8.2* borland-5.8.2* copy_if: borland-5.6.4 borland-5.8.2* borland-5.8.2* count: borland-5.6.4 borland-5.8.2* borland-5.8.2* count_if: borland-5.6.4 borland-5.8.2* borland-5.8.2* deque: borland-5.6.4 borland-5.8.2* borland-5.8.2* distance: borland-5.6.4 borland-5.8.2* borland-5.8.2* equal: borland-5.6.4 borland-5.8.2* borland-5.8.2* erase: borland-5.6.4 borland-5.8.2* borland-5.8.2* erase_range: borland-5.6.4 borland-5.8.2* borland-5.8.2* filter_view: borland-5.6.4 borland-5.8.2* borland-5.8.2* find: borland-5.6.4 borland-5.8.2* borland-5.8.2* find_if: borland-5.6.4 borland-5.8.2* borland-5.8.2* fold: borland-5.6.4 borland-5.8.2* borland-5.8.2* for_each: borland-5.6.4 borland-5.8.2* borland-5.8.2* identity: borland-5.6.4 borland-5.8.2* borland-5.8.2* index_of: borland-5.6.4 borland-5.8.2* borland-5.8.2* insert: borland-5.6.4 borland-5.8.2* borland-5.8.2* insert_range: borland-5.6.4 borland-5.8.2* borland-5.8.2* int: borland-5.8.2* borland-5.8.2* integral_c: borland-5.8.2* borland-5.8.2* is_placeholder: borland-5.6.4 borland-5.8.2* borland-5.8.2* joint_view: borland-5.6.4 borland-5.8.2* borland-5.8.2* lambda: borland-5.6.4 borland-5.8.2* borland-5.8.2* lambda_args: borland-5.6.4 borland-5.8.2* borland-5.8.2* list: borland-5.6.4 borland-5.8.2* borland-5.8.2* list_c: borland-5.6.4 borland-5.8.2* borland-5.8.2* lower_bound: borland-5.6.4 borland-5.8.2* borland-5.8.2* max_element: borland-5.6.4 borland-5.8.2* borland-5.8.2* multiset: gcc-4.0.3_linux gcc-4.1.0_linux gcc-4.1.0_linux_x86_64 pair_view: borland-5.6.4 borland-5.8.2* borland-5.8.2* partition: borland-5.6.4 borland-5.8.2* borland-5.8.2* pop_front: borland-5.6.4 borland-5.8.2* borland-5.8.2* push_front: borland-5.6.4 borland-5.8.2* borland-5.8.2* range_c: borland-5.6.4 borland-5.8.2* borland-5.8.2* remove: borland-5.6.4 borland-5.8.2* borland-5.8.2* remove_if: borland-5.6.4 borland-5.8.2* borland-5.8.2* replace: borland-5.6.4 borland-5.8.2* borland-5.8.2* replace_if: borland-5.6.4 borland-5.8.2* borland-5.8.2* reverse: borland-5.6.4 borland-5.8.2* borland-5.8.2* same_as: borland-5.6.4 borland-5.8.2* borland-5.8.2* single_view: borland-5.6.4 borland-5.8.2* borland-5.8.2* size: borland-5.6.4 borland-5.8.2* borland-5.8.2* size_t: borland-5.8.2* borland-5.8.2* sort: borland-5.6.4 borland-5.8.2* borland-5.8.2* stable_partition: borland-5.6.4 borland-5.8.2* borland-5.8.2* transform: borland-5.6.4 borland-5.8.2* borland-5.8.2* transform_view: borland-5.6.4 borland-5.8.2* borland-5.8.2* unique: borland-5.6.4 borland-5.8.2* borland-5.8.2* unpack_args: borland-5.6.4 borland-5.8.2* borland-5.8.2* upper_bound: borland-5.6.4 borland-5.8.2* borland-5.8.2* vector: borland-5.6.4 borland-5.8.2* borland-5.8.2* vector_c: borland-5.6.4 borland-5.8.2* borland-5.8.2* |numeric/conversion| numeric_cast_test: borland-5.8.2* |numeric/interval| add: borland-5.8.2* fmod: borland-5.8.2* mul: borland-5.8.2* pi: borland-5.8.2* pow: borland-5.8.2* |optional| optional_test: borland-5.8.2* optional_test_inplace: borland-5.8.2* optional_test_io: borland-5.8.2* optional_test_ref: borland-5.8.2* optional_test_tie: borland-5.8.2* |parameter| basics: borland-5.6.4 borland-5.8.2* borland-5.8.2* compose: borland-5.6.4 borland-5.8.2* borland-5.8.2* deduced: borland-5.6.4 borland-5.8.2* borland-5.8.2* deduced_dependent_predicate: borland-5.6.4 borland-5.8.2* borland-5.8.2* duplicates: gcc-4.0.3_linux gcc-4.1.0_linux gcc-4.1.0_linux_x86_64 gcc-4.1.1_sunos_i86pc earwicker: borland-5.6.4 borland-5.8.2* borland-5.8.2* efficiency: borland-5.6.4 borland-5.8.2* borland-5.8.2* macros: borland-5.6.4 borland-5.8.2* borland-5.8.2* mpl: borland-5.6.4 borland-5.8.2* borland-5.8.2* ntp: borland-5.6.4 borland-5.8.2* borland-5.8.2* preprocessor: borland-5.6.4 borland-5.8.2* borland-5.8.2* sfinae: borland-5.6.4 singular: borland-5.6.4 borland-5.8.2* borland-5.8.2* tutorial: borland-5.6.4 borland-5.8.2* borland-5.8.2* |program_options| cmdline_test_dll: cw-9.4 options_description_test_dll: cw-9.4 parsers_test_dll: cw-9.4 positional_options_test_dll: cw-9.4 unicode_test_dll: cw-9.4 variable_map_test_dll: cw-9.4 winmain_dll: cw-9.4 |property_map| dynamic_properties_test: borland-5.8.2* |random| random_demo: borland-5.6.4 borland-5.8.2* borland-5.8.2* random_test: intel-linux-9.0 |range| algorithm_example: borland-5.6.4 borland-5.8.2* borland-5.8.2* const_ranges: borland-5.6.4 borland-5.8.2* borland-5.8.2* extension_mechanism: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_pair: borland-5.6.4 borland-5.8.2* borland-5.8.2* iterator_range: borland-5.6.4 borland-5.8.2* borland-5.8.2* reversible_range: borland-5.6.4 borland-5.8.2* borland-5.8.2* std_container: borland-5.6.4 borland-5.8.2* borland-5.8.2* sub_range: borland-5.6.4 borland-5.8.2* borland-5.8.2* |rational| rational_example: borland-5.8.2* rational_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* |regex| bad_expression_test: borland-5.8.2* captures_example: borland-5.8.2* captures_test: borland-5.8.2* credit_card_example: borland-5.8.2* icu_example: borland-5.8.2* mfc_example: borland-5.8.2* object_cache_test: borland-5.8.2* partial_regex_grep: borland-5.8.2* partial_regex_match: borland-5.8.2* posix_api_check: borland-5.8.2* posix_api_check_cpp: borland-5.8.2* recursion_test: borland-5.8.2* regex_dll_config_info: borland-5.8.2* regex_grep_example_1: borland-5.8.2* regex_grep_example_2: borland-5.8.2* regex_grep_example_3: borland-5.8.2* regex_grep_example_4: borland-5.8.2* regex_iterator_example: borland-5.8.2* regex_match_example: borland-5.8.2* regex_merge_example: borland-5.8.2* regex_regress_dll: borland-5.8.2* regex_regress_threaded: borland-5.8.2* regex_replace_example: borland-5.8.2* regex_search_example: borland-5.8.2* regex_split_example_1: borland-5.8.2* regex_split_example_2: borland-5.8.2* regex_timer: borland-5.8.2* regex_token_iterator_eg_1: borland-5.8.2* regex_token_iterator_eg_2: borland-5.8.2* static_mutex_test: borland-5.8.2* test_collate_info: borland-5.8.2* unicode_iterator_test: borland-5.8.2* borland-5.8.2* wide_posix_api_check_cpp: borland-5.8.2* |serialization| test_codecvt_null: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_iterators: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_iterators_base64: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_registered_text_archive_dll: msvc-7.1 test_reset_object_address: msvc-7.0 test_reset_object_address_dll: msvc-7.0 test_utf8_codecvt: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_binary_archive: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_binary_archive_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_text_archive: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_text_archive_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_text_warchive: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_text_warchive_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_xml_archive: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_xml_archive_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_xml_warchive: borland-5.6.4 borland-5.8.2* borland-5.8.2* test_variant_xml_warchive_dll: borland-5.6.4 borland-5.8.2* borland-5.8.2* |signals| dead_slot_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* deletion_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* ordering_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* signal_n_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* trackable_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* |smart_ptr| atomic_count_test: borland-5.8.2* get_deleter_test: borland-5.8.2* intrusive_ptr_test: borland-5.8.2* lw_mutex_test: borland-5.8.2* pointer_cast_test: borland-5.8.2* shared_from_this_test: borland-5.8.2* shared_ptr_alloc2_test: borland-5.8.2* shared_ptr_basic_test: borland-5.8.2* shared_ptr_test: borland-5.8.2* smart_ptr_test: borland-5.8.2* weak_ptr_test: borland-5.8.2* |spirit| switch_tests_eps_default: intel-linux-9.0 |statechart| TransitionTestBoth: qcc-3.3.5_gpp qcc-3.3.5_gpp TransitionTestRelaxed: qcc-3.3.5_gpp qcc-3.3.5_gpp |static_assert| static_assert_example_2: borland-5.8.2* static_assert_example_3: borland-5.8.2* |test| basic_cstring_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* foreach_test: borland-5.8.2* ifstream_line_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* online_test: borland-5.8.2* test_case_template_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* |thread| test_tss_lib: borland-5.8.2* |tokenizer| examples: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_example_1: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_example_2: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_example_3: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_example_4: borland-5.6.4 borland-5.8.2* borland-5.8.2* simple_example_5: borland-5.6.4 borland-5.8.2* borland-5.8.2* |tr1| std_test_tr1_include: borland-5.8.2* borland-5.8.2* test_tr1_include: borland-5.8.2* borland-5.8.2* tr1_add_const_test: borland-5.8.2* tr1_add_cv_test: borland-5.8.2* tr1_add_pointer_test: borland-5.8.2* tr1_add_reference_test: borland-5.8.2* tr1_add_volatile_test: borland-5.8.2* tr1_aligned_storage_test: borland-5.8.2* tr1_alignment_of_test: borland-5.8.2* tr1_has_nothrow_assign_test: borland-5.8.2* tr1_has_nothrow_constr_test: borland-5.8.2* tr1_has_nothrow_copy_test: borland-5.8.2* tr1_has_trivial_assign_test: borland-5.8.2* tr1_has_trivial_constr_test: borland-5.8.2* tr1_has_trivial_copy_test: borland-5.8.2* tr1_has_trivial_destr_test: borland-5.8.2* tr1_has_virtual_destr_test: borland-5.8.2* tr1_is_arithmetic_test: borland-5.8.2* tr1_is_array_test: borland-5.8.2* tr1_is_class_test: borland-5.8.2* tr1_is_compound_test: borland-5.8.2* tr1_is_const_test: borland-5.8.2* tr1_is_empty_test: borland-5.8.2* tr1_is_enum_test: borland-5.8.2* tr1_is_floating_point_test: borland-5.8.2* tr1_is_function_test: borland-5.8.2* tr1_is_fundamental_test: borland-5.8.2* tr1_is_integral_test: borland-5.8.2* tr1_is_member_func_test: borland-5.8.2* tr1_is_member_obj_test: borland-5.8.2* tr1_is_member_pointer_test: borland-5.8.2* tr1_is_object_test: borland-5.8.2* tr1_is_pod_test: borland-5.8.2* tr1_is_pointer_test: borland-5.8.2* tr1_is_polymorphic_test: borland-5.8.2* tr1_is_reference_test: borland-5.8.2* tr1_is_same_test: borland-5.8.2* tr1_is_scalar_test: borland-5.8.2* tr1_is_signed_test: borland-5.8.2* tr1_is_union_test: borland-5.8.2* tr1_is_unsigned_test: borland-5.8.2* tr1_is_void_test: borland-5.8.2* tr1_is_volatile_test: borland-5.8.2* tr1_remove_cv_test: borland-5.8.2* tr1_remove_reference_test: borland-5.8.2* tr1_tky_abstract_type_test: borland-5.8.2* tr1_tky_partial_spec_test: borland-5.8.2* |type_traits| add_const_test: borland-5.8.2* add_cv_test: borland-5.8.2* add_pointer_test: borland-5.8.2* add_reference_test: borland-5.8.2* add_volatile_test: borland-5.8.2* aligned_storage_test: borland-5.8.2* alignment_of_test: borland-5.8.2* function_traits_test: borland-5.8.2* has_nothrow_assign_test: borland-5.8.2* has_nothrow_constr_test: borland-5.8.2* has_nothrow_copy_test: borland-5.8.2* has_trivial_assign_test: borland-5.8.2* has_trivial_constr_test: borland-5.8.2* has_trivial_copy_test: borland-5.8.2* has_trivial_destructor_test: borland-5.8.2* has_virtual_destructor_test: borland-5.8.2* is_arithmetic_test: borland-5.8.2* is_array_test: borland-5.8.2* is_class_test: borland-5.8.2* is_compound_test: borland-5.8.2* is_const_test: borland-5.8.2* is_empty_test: borland-5.8.2* is_enum_test: borland-5.8.2* is_float_test: borland-5.8.2* is_floating_point_test: borland-5.8.2* is_function_test: borland-5.8.2* is_fundamental_test: borland-5.8.2* is_integral_test: borland-5.8.2* is_member_func_test: borland-5.8.2* is_member_obj_test: borland-5.8.2* is_member_pointer_test: borland-5.8.2* is_object_test: borland-5.8.2* is_pod_test: borland-5.8.2* is_pointer_test: borland-5.8.2* is_polymorphic_test: borland-5.8.2* is_reference_test: borland-5.8.2* is_same_test: borland-5.8.2* is_scalar_test: borland-5.8.2* is_signed_test: borland-5.8.2* is_stateless_test: borland-5.8.2* is_union_test: borland-5.8.2* is_unsigned_test: borland-5.8.2* is_void_test: borland-5.8.2* is_volatile_test: borland-5.8.2* remove_cv_test: borland-5.8.2* remove_reference_test: borland-5.8.2* tricky_abstract_type_test: borland-5.8.2* tricky_partial_spec_test: borland-5.8.2* type_with_alignment_test: borland-5.8.2* udt_specialisations: borland-5.8.2* |utility| addressof_test: borland-5.8.2* assert_test: borland-5.8.2* base_from_member_test: borland-5.8.2* binary_search_test: borland-5.8.2* call_traits_test: borland-5.8.2* current_function_test: borland-5.8.2* operators_test: gcc-3.4.5_linux_x86_64 shared_iterator_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* value_init_test: borland-5.8.2* |variant| variant_comparison_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_reference_test: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test2: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test3: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test4: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test6: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test7: borland-5.6.4 borland-5.8.2* borland-5.8.2* variant_test8: borland-5.6.4 borland-5.8.2* borland-5.8.2* |xpressive| c_traits: gcc-4.1.0_linux test_regex_primitives: msvc-7.1

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boost vault
by Andy Little 10 Nov '06

10 Nov '06

Can someone delete the "inner_product.zip" example in Generic Programming section of boost vault? My password doesnt seem to .work Thankyou. regards Andy Little

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[Boost-bugs] [ boost-Support Requests-1594210 ] Graph vs. Multi_index for geometric algorithms
by SourceForge.net 10 Nov '06

10 Nov '06

Support Requests item #1594210, was opened at 2006-11-10 07:19 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1594210&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: multi_index Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Joaqu�n M L�pez Mu�oz (joaquintides) Summary: Graph vs. Multi_index for geometric algorithms Initial Comment: Dear Boost Supporter, I am working on an implementation of a 2D polygon boolean class. I am aware that such classes are already available but all have technical (robustness, performance, flexibility) or license (commercial, GPL) limitations. I would like to use STL and Boost as much as possible. Some of my algorithms require various range searches and intersection tests. The multi_index_container class seems ideal to implement these. On the other hand I will need various graph traversal algorithms, which suggests using the Graph library, which has very limited possibilities for sorting an efficient searching. Do you see an easy way to combine the advantages of both libraries? Obviously, I would like to avoid maintaining a separate multi_sorted search structure next to my graph. My email address hans.van.zwol(a)nxp.com hans.van.zwol(a)xs4all.nl Thank you for any helpful suggestions! Hans van Zwol ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1594210&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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Re: [boost] boost::shared_ptr<>::compare_and_swap() -- AmIinsaneforwanting this?
by Talbot, George 10 Nov '06

10 Nov '06

> Talbot, George wrote: > > > I thought that the current implementation of shared_ptr is lock-free > > and multithreaded in the sense that I can pass shared_ptr between > > threads, and the reference count is updated correctly, etc. (I'm > > using BOOST 1.33.) Am I incorrect in thinking this? Peter Dimov wrote: > This is not the same as atomic. An atomic type allows you to modify a > variable from thread A while, at the same time, thread B is also reading > or > writing it. shared_ptr doesn't offer this level of thread-safety. As an > example, consider: > > shared_ptr<X> px; > > // thread A > > shared_ptr<X> px2( px ); > > // thread B > > px = px3; > > (you can also have thread B doing compare and swap, it doesn't matter.) > > Imagine that thread A reads the two pointers from px and is preempted > right > after that. Thread B overwrites the contents of px, and in doing so, > causes > its reference count to drop to zero; the object and the control block are > destroyed. Thread A wakes up and attempts to increment the now non- > existent > reference count. Bad things happen. > > But maybe I'm misunderstanding the intent of your compare and swap > primitive. I apologize if this is rapidly becoming a refresher course for me in multithreaded programming. ;^) Forgetting about compare-and-swap for a second, what you're saying is that the _initialization_ of px2 from px in thread A above is not atomic? Is this sequence atomic? // Before the treads start shared_ptr<X> px(blah); // thread A shared_ptr<X> px2; px2 = px; // thread B px = px3 I thought that constructors, destructors and the assignments were atomic from the documentation, but it doesn't mean I'm reading it right. I'm reading http://www.boost.org/libs/smart_ptr/compatibility.htm. Under "Features That Improve Robustness" it says "The manipulation of use counts is now thread safe on Windows, Linux and platforms that support pthreads. See <boost/detail/atomic_count.hpp> file for details." I really don't understand, based upon that statement and the statements made in the comments of atomic_count.hpp of exactly what operations are thread safe and what aren't when using shared_ptr. I'm sorry if I'm being too dense here. I think a section in the documentation saying exactly what is guaranteed and what isn't would help a lot. -- George T. Talbot gtalbot(a)locuspharma.com

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Re: [boost] boost::shared_ptr<>::compare_and_swap() -- Am I insaneforwanting this?
by Talbot, George 10 Nov '06

10 Nov '06

> Talbot, George wrote: > > Hi, > > > > I have a question for the designers and implementers of > > boost::shared_ptr: > > > > Is there any plan afoot to support lock-free programming using > > shared_ptr? I was fooling around with wanting to attempt lock-free > > update of a tree structure that I have that uses shared_ptr. If > > no-one's thinking about this, how might I go about implementing: > > > > bool boost::shared_ptr<T>::compare_and_swap(T* original, > > shared_ptr<T>& new_one) > Peter Dimov wrote: > > Very, very difficult. :-) shared_ptr is not atomic; I can pass a shared_ptr between threads right now, correct? > you can look at Joe Seigh's atomic_ptr: > > http://atomic-ptr-plus.sourceforge.net/ > > and Chris Thomasson's > > http://appcore.home.comcast.net/vzoom/refcount/ > > for examples of atomic reference counted pointers. > > Shared_ptr can be made atomic by using a spinlock. This isn't really > lock-free, though. I thought that the current implementation of shared_ptr is lock-free and multithreaded in the sense that I can pass shared_ptr between threads, and the reference count is updated correctly, etc. (I'm using BOOST 1.33.) Am I incorrect in thinking this? I can see where compare_and_swap() probably can't be added without adding a sequence number. Am I right saying that this is one of the reasons adding this to shared_pointer isn't realistic? -- George T. Talbot <gtalbot(a)locuspharma.com>

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Re: [boost] [system] Was: Re: [asio] Breaking changes committed to cvs HEAD
by Christopher Kohlhoff 10 Nov '06

10 Nov '06

Hi Johan, Johan Nilsson <r.johan.nilsson(a)gmail.com> wrote: [...] > 2) I've implemented similar code previously, but only designed > for portability with linux and Win32. What I very often use, > is something corresponding to retrieving errno or calling > GetLastError (on Win32). > > With the current design, it is harder to implement library > code throwing system_errors (retrieving error codes) as you'll > need to get the corresponding error code in a > platform-specific way. Or did I miss something? I think the intention is that platform specific library implementations will initialise the error_code in a platform-specific way. At least, this is what asio does. > 4) I'm wondering about best practices for how to use the > error_code class portably while maintaining as much of the > (native) information as possible. Ideally, it should be > possible to check for specific error codes portably, while > having the native descriptions(messages) available for as much > details as possible. Using native_ecat and compare using > to_errno? Asio and its TR2 proposal provide a set of global constants of type error_code that can be used for portably checking for well known error codes. See sections 5.2 and 5.3.2.6 in N2054 for more detail: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2054.pdf Cheers, Chris

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Unrolling loops
by Guy Peleg 10 Nov '06

10 Nov '06

Hi, Is there any interest in a library which unrolls loops when traversing N times through containers? (where N is known in compile time) For example, 'fixed_size_for_each': // IT - Iterator // N - The number of elements template <typename IT, int N> struct fixed_size_for_each_impl; // ================ // Specialization 1: template <typename IT, int N> struct fixed_size_for_each_impl { template <class F> void operator()(IT it, F& op) { op(*it); fixed_size_for_each_impl<IT, N-1> tail; tail(++it, op); } }; // ================ // Specialization 2 ('stop condition'): template <typename IT> struct fixed_size_for_each_impl<IT, 1> { template <class F> void operator()(IT it, F& op) { op(*it); } }; // ================ // A sort of 'for_each' algorithm // that traverses N times through some // container while unrolling the loop template<int N, typename IT, typename F> F fixed_size_for_each(IT it, F op) { fixed_size_for_each_impl<IT, N>()(it, op); return op; } // ================ // Overloaded method especially for boost::array // because we know the number of elements (static_size) template<typename F, typename T, int N> F fixed_size_for_each(boost::array<T, N>& a, F op) { typedef boost::array<T, N> boost_array; return fixed_size_for_each<boost_array::static_size>(a.begin(), op); } Possible use: boost::array<Shape *, 4> a; .... fixed_size_for_each(a, mem_fun(&Shape::draw)); Other algorithms (e.g. find) can be done too, if there is a need I'll be happy to submit a suggestion. Thanks, Guy This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement, you may review at http://www.amdocs.com/email_disclaimer.asp

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[string_algo] comments
by Martin Adrian 10 Nov '06

10 Nov '06

I have used the string_algo library for a long time and is used to how it works. Recently I had to introduce a collegue to it and started to write a document but it wasn't easy. Here is a few points: 1. The word predicate is used to describe anything which can return a boolean value. While this is technicly correct it creates confusion since there are many different predicates used in the library. Example: Both trim_if and starts_with takes a PredicateT argument but they are not the same predicate types. I have found the following predicates: - Unary token predicate: These are all the classification predicates: is_space, is_from_range etc - Binary token predicate: These are the token comparison predicates: is_equal, is_iless etc - Unary string predicate: These are the string validation predicates: all, regex_match - Binary string predicate: These are the substring match predicates: starts_with, contains etc. Note here that the "string predicates" are different from the "token predicates" since they don't return functors (and can't be used directly with standard algorithms). My suggestion is to clear this up in such a way that all predicate types are given a name (e.g. UnaryTokenPredicateT) and that they are available as both a free function and a boolean functor. Naming will be tricky to get right. is_space: functor: boost::is_space( Locale ) free function: std::is_space( Char, Locale ) is_iequal: functor: boost::is_iequal( Locale ) free function: ??(Char1, Char2, Locale) starts_with: functor: ??(String, String) free function: starts_with(String, String) 2. There are a number of suffixes used within the library. Here is my interpretation: nosuffix: Mutable verision _copy: const version returning a copy _if: version using a (non-default) predicate _regex: version using a regex predicate _first, _last, _nth, _all, _head, _tail: for search/replace/erase algorithms _range: Not sure what this is supposed to mean Most are fine but there are some inconsistances: - find/replace/erase algorithms can work with 2 different predicates (token predicate and Finder). The naming isn't consistant. find_all takes a token predicate while make_find_iterator uses a Finder. - trim taking a unary token predicate is called trim_if but find taking the same argument is called find_token - replace with predicate is called find_format - join taking a regex argument is called join_if - starts_with etc use overload instead of _if suffix 3. There are lot of (randomly) missing algorithms. - erase_if, erase_all_if, erase_copy_if, erase_all_copy_if taking a Finder argument (all these are availble as replace with _formatter suffix) - is_token, is_itoken, is_ianyof - ifirst_finder, ilast_finder, inth_finder - find_all and split taking a finder argument - make_split_iterator and make_find_iterator with token predicate 4. Other stuff - ilexicographical_compare is missing locale argument - range_finder seems odd. What is the purpose? - why is the predicate called not_greater instead of less_equal (compare to std::less_equal) - regex_search_result is derived from iterator_range but iterator_range doesn't have a virtual destructor. It might be safe but I couldn't verify it. - there is no special string_algo "regex_match" predicate. The regex version is limited to basic_string argument.

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