- Boost - lists.boost.org

[math/staticstics/design] How best to name statistical functions?
by John Maddock 14 Jul '06

14 Jul '06

Paul Bristow has been toiling away producing some statistical functions on top of some of my Math special functions, and we've encountered a bit of a naming dilemma that I hope the ever resourceful Boosters can solve for us :-) For a given cumulative distribution function (I'm going to use the students-t function as an example below) there are two (or maybe three) variations: P: this is the regular cumulative distribution function, and is a rising function in it's argument (rises from 0 to 1). Q: this is 1-P and is also known as the complement of the cumulative distribution function. It falls from 1 to 0 over the range of it's argument. A: this is less well used and is P-Q or 1-2Q depending upon your point of view. Naming scheme 1: ~~~~~~~~~~~~~~~~ We have the reasonably obvious: students_t(df,x) : calculates P students_t_c(df,x) : calculates Q However that varies slightly from the existing practice of erf/erfc which if followed here would lead to: students_t(df,x) : calculates P students_tc(df,x) : calculates Q but the lack of the underscore doesn't look right to me. Naming Scheme 2: ~~~~~~~~~~~~~~~~ How about we call a spade a spade and use: students_t_P(df,x) : calculates P students_t_Q(df,x) : calculates Q Not pretty, but the P and Q notations are universally used in the literature, and of course we could handle the A case as well if that was felt to be needed. It doesn't follow normal Boost all_lower_case_names either, but since lower case "p" and "q" have slightly different meanings in the literature (they're for values of P and Q) I'm less keen on: students_t_p(df,x) : calculates P students_t_q(df,x) : calculates Q Wacky Scheme 3: ~~~~~~~~~~~~~~~ Both of the above suffer from a rather spectacular explosion of function prototypes once you include every variant for each distribution, an alternative using named parameters might be: P(dist=students_t, df=4, x=5.2); // P for 4 degrees freedom and x=5.2 Q(dist=students_t, df=5, x=20.0); // Q for 5 degrees freedom and x=20.0 But of course internally this would have to forward to something like (1) or (2) so it doesn't actually save you any implementation effort, just reduces the number of names. Inverses: ~~~~~~~~~ And if that's not enough, we also have inverses: * Calculate x given degrees of freedom and P. * Calculate x given degrees of freedom and Q. * Calculate degrees of freedom given x and P. * Calculate degrees of freedom given x and Q. At present we're looking at something like: students_t_inv(df,p); // Calculate x given degrees of freedom and P. But the other variants don't have obvious names under this scheme? So I'm hoping some Boosters can work their usual naming magic :-) Many thanks, John.

6 37

Boost regression notification (2006-07-14 [RC_1_34_0])
by Douglas Gregor 14 Jul '06

14 Jul '06

Boost Regression test failures Report time: 2006-07-14T11:10:54Z 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… 540 failures in 31 libraries algorithm/string (2) concept_check (1) conversion (1) date_time (1) filesystem (5) graph (6) integer (3) io (1) iostreams (61) iterator (1) lambda (2) mpl (20) numeric/conversion (4) numeric/interval (2) numeric/ublas (8) optional (2) parameter (33) pool (3) program_options (19) python (92) random (1) rational (5) serialization (179) signals (16) spirit (12) test (8) tr1 (39) typeof (9) utility (2) utility/enable_if (1) wave (1) |algorithm/string| regex: borland-5_6_4 replace: vc-7_1-stlport |concept_check| class_concept_check_test: vc-7_1-stlport |conversion| lexical_cast_test: sun-5.8 |date_time| testgreg_serialize_dll: mingw-3_4_2 |filesystem| fstream_test: sun-5.8 mbcopy: sun-5.8 operations_test: vc-7_1-stlport operations_test_dll: vc-7_1-stlport wide_test: sun-5.8 |graph| adjacency_matrix_test: vc-7_0 bidir_remove_edge: vc-7_0 csr_graph_test: sun-5.8 graphviz_test: msvc-8.0 msvc-8.0 vc-7_1-stlport |integer| integer_traits_test: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp |io| ios_state_unit_test: gcc-4.1.0_linux_x86_64 |iostreams| array_test: vc-6_5 auto_close_test: sun-5.8 vc-6_5 buffer_size_test: sun-5.8 vc-6_5 bzip2_test: msvc-7.1 msvc-8.0 sun-5.8 code_converter_test: sun-5.8 vc-6_5 component_access_test: sun-5.8 vc-6_5 compose_test: borland-5_6_4 sun-5.8 vc-6_5 copy_test: vc-6_5 counter_test: sun-5.8 vc-6_5 direct_adapter_test: vc-6_5 example_test: vc-6_5 vc-6_5-stlport file_descriptor_test: vc-6_5 file_test: vc-6_5 filtering_stream_test: sun-5.8 vc-6_5 vc-7_1-stlport finite_state_filter_test: cw-9.4 sun-5.8 flush_test: sun-5.8 vc-6_5 gzip_test: msvc-7.1 msvc-8.0 sun-5.8 invert_test: vc-6_5 line_filter_test: sun-5.8 vc-6_5 mapped_file_test: vc-6_5 newline_test: sun-5.8 vc-6_5 null_test: vc-6_5 pipeline_test: sun-5.8 vc-6_5 positioning_test: vc-6_5 regex_filter_test: sun-5.8 vc-6_5 restrict_test: sun-5.8 vc-6_5 seekable_file_test: sun-5.8 vc-6_5 seekable_filter_test: sun-5.8 vc-6_5 stdio_filter_test: sun-5.8 vc-6_5 symmetric_filter_test: sun-5.8 vc-6_5 tee_test: sun-5.8 vc-6_5 wide_stream_test: sun-5.8 vc-6_5 zlib_test: msvc-7.1 msvc-8.0 |iterator| is_lvalue_iterator: sun-5.8 |lambda| extending_rt_traits: sun-5.8 operator_tests_simple: sun-5.8 |mpl| apply: gcc-4.1.0_linux_x86_64 gcc-4.1.1_sunos_i86pc sun-5.8 count: sun-5.8 count_if: sun-5.8 equal: sun-5.8 erase: sun-5.8 find: sun-5.8 insert: sun-5.8 insert_range: sun-5.8 lambda_args: sun-5.8 multiset: gcc-3.4.5_linux_x86_64 gcc-4.0.3_linux gcc-4.1.0_linux gcc-4.1.0_linux_x86_64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 partition: sun-5.8 stable_partition: sun-5.8 vector_c: sun-5.8 |numeric/conversion| converter_test: borland-5_8_2 traits_test: borland-5_8_2 udt_example_0: borland-5_8_2 udt_support_test: borland-5_8_2 |numeric/interval| det: sun-5.8 test_float: vc-7_1-stlport |numeric/ublas| concepts: vc-7_1-stlport vc-7_1-stlport test1: msvc-8.0 vc-7_1-stlport test2: vc-7_1-stlport test4: vc-7_1-stlport test5: vc-7_1-stlport vc-7_1-stlport |optional| optional_test: sun-5.8 optional_test_ref: sun-5.8 |parameter| basics: borland-5_6_4 borland-5_8_2 sun-5.8 duplicates: borland-5_6_4 borland-5_8_2 earwicker: borland-5_6_4 borland-5_8_2 macros: borland-5_6_4 borland-5_8_2 sun-5.8 maybe: vc-6_5 vc-6_5-stlport vc-7_0 mpl: borland-5_6_4 borland-5_8_2 preprocessor: borland-5_6_4 borland-5_8_2 sun-5.8 vc-6_5 vc-6_5-stlport python-parameter-test: vc-6_5 vc-6_5-stlport vc-7_0 sfinae: borland-5_6_4 borland-5_8_2 vc-6_5-stlport singular: borland-5_6_4 borland-5_8_2 unnamed: borland-5_6_4 borland-5_8_2 unnamed_fail: vc-6_5 vc-6_5-stlport vc-7_0 |pool| test_pool_alloc: qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp |program_options| cmdline_test: sun-5.8 cmdline_test_dll: cw-9.4 sun-5.8 options_description_test: sun-5.8 options_description_test_dll: cw-9.4 sun-5.8 parsers_test: sun-5.8 parsers_test_dll: cw-9.4 sun-5.8 positional_options_test: sun-5.8 positional_options_test_dll: cw-9.4 sun-5.8 unicode_test_dll: borland-5_8_2 cw-9.4 variable_map_test: sun-5.8 variable_map_test_dll: borland-5_8_2 cw-9.4 sun-5.8 winmain_dll: cw-9.4 |python| andreas_beyer: sun-5.8 args: sun-5.8 auto_ptr: sun-5.8 back_reference: sun-5.8 bases: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux sun-5.8 ben_scott1: sun-5.8 bienstman1: sun-5.8 bienstman2: sun-5.8 bienstman3: sun-5.8 borrowed: sun-5.8 callbacks: sun-5.8 const_argument: sun-5.8 crossmod_exception: sun-5.8 data_members: sun-5.8 defaults: sun-5.8 dict: sun-5.8 docstring: sun-5.8 enum: sun-5.8 exception_translator: sun-5.8 exec: cw-9.4 darwin-4.0.1 gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux msvc-8.0 qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_gpp qcc-3.3.5_gpp sun-5.8 extract: sun-5.8 implicit: sun-5.8 indirect_traits_test: sun-5.8 injected: sun-5.8 iterator: sun-5.8 keywords: sun-5.8 list: sun-5.8 long: sun-5.8 minimal: sun-5.8 multi_arg_constructor: sun-5.8 nested: sun-5.8 numpy: sun-5.8 object: sun-5.8 object_manager: sun-5.8 opaque: sun-5.8 operators: sun-5.8 pearu1: sun-5.8 pickle1: sun-5.8 pickle2: sun-5.8 pickle3: sun-5.8 pickle4: sun-5.8 pointee: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux sun-5.8 pointer_type_id_test: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux sun-5.8 pointer_vector: sun-5.8 polymorphism: sun-5.8 polymorphism2: sun-5.8 polymorphism2_auto_ptr: sun-5.8 properties: sun-5.8 raw_ctor: sun-5.8 return_arg: sun-5.8 select_arg_to_python_test: sun-5.8 select_from_python_test: darwin-4.0.1 qcc-3.3.5_cpp qcc-3.3.5_gpp sun-5.8 select_holder: sun-5.8 shared_ptr: sun-5.8 slice: sun-5.8 staticmethod: sun-5.8 stl_iterator: sun-5.8 str: sun-5.8 string_literal: sun-5.8 test_pointer_adoption: sun-5.8 try: sun-5.8 tuple: sun-5.8 upcast: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux sun-5.8 vector_indexing_suite: sun-5.8 virtual_functions: sun-5.8 voidptr: sun-5.8 wrapper_held_type: sun-5.8 |random| random_test: intel-linux-9.0 |rational| rational_test: borland-5_6_4 sun-5.8 vc-6_5 vc-6_5-stlport vc-7_0 |serialization| test_array_binary_archive_dll: mingw-3_4_2 test_array_text_archive_dll: mingw-3_4_2 test_array_xml_archive_dll: mingw-3_4_2 test_binary_binary_archive_dll: mingw-3_4_2 test_binary_text_archive_dll: mingw-3_4_2 test_binary_xml_archive_dll: mingw-3_4_2 test_class_info_load_binary_archive_dll: mingw-3_4_2 test_class_info_load_text_archive_dll: mingw-3_4_2 test_class_info_load_text_warchive: vc-6_5 test_class_info_load_xml_archive_dll: mingw-3_4_2 test_class_info_save_binary_archive_dll: mingw-3_4_2 test_class_info_save_text_archive_dll: mingw-3_4_2 test_class_info_save_xml_archive: msvc-8.0 test_class_info_save_xml_archive_dll: mingw-3_4_2 test_codecvt_null: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp test_contained_class_binary_archive_dll: mingw-3_4_2 test_contained_class_text_archive_dll: mingw-3_4_2 test_contained_class_xml_archive_dll: mingw-3_4_2 test_cyclic_ptrs_binary_archive_dll: mingw-3_4_2 test_cyclic_ptrs_text_archive_dll: mingw-3_4_2 test_cyclic_ptrs_xml_archive_dll: mingw-3_4_2 test_delete_pointer_binary_archive_dll: mingw-3_4_2 test_delete_pointer_text_archive_dll: mingw-3_4_2 test_delete_pointer_xml_archive_dll: mingw-3_4_2 test_demo_auto_ptr_dll: mingw-3_4_2 test_demo_dll: mingw-3_4_2 test_demo_exception_dll: mingw-3_4_2 test_demo_fast_archive: sun-5.8 test_demo_fast_archive_dll: mingw-3_4_2 sun-5.8 test_demo_pimpl_dll: mingw-3_4_2 test_demo_polymorphic_dll: mingw-3_4_2 test_demo_portable_archive_dll: mingw-3_4_2 test_demo_shared_ptr_dll: mingw-3_4_2 test_demo_xml_dll: mingw-3_4_2 test_demo_xml_load_dll: mingw-3_4_2 test_demo_xml_save_dll: mingw-3_4_2 test_deque_binary_archive_dll: mingw-3_4_2 test_deque_text_archive_dll: mingw-3_4_2 test_deque_xml_archive_dll: mingw-3_4_2 test_derived_binary_archive_dll: mingw-3_4_2 test_derived_class_binary_archive_dll: mingw-3_4_2 test_derived_class_ptr_binary_archive_dll: mingw-3_4_2 test_derived_class_ptr_text_archive_dll: mingw-3_4_2 test_derived_class_ptr_xml_archive_dll: mingw-3_4_2 test_derived_class_text_archive_dll: mingw-3_4_2 test_derived_class_xml_archive_dll: mingw-3_4_2 test_derived_text_archive_dll: mingw-3_4_2 test_derived_xml_archive_dll: mingw-3_4_2 test_diamond_binary_archive_dll: mingw-3_4_2 test_diamond_text_archive_dll: mingw-3_4_2 test_diamond_xml_archive_dll: mingw-3_4_2 test_exported_binary_archive_dll: mingw-3_4_2 test_exported_text_archive_dll: mingw-3_4_2 test_exported_xml_archive_dll: mingw-3_4_2 test_list_binary_archive_dll: mingw-3_4_2 test_list_ptrs_binary_archive_dll: mingw-3_4_2 test_list_ptrs_text_archive_dll: mingw-3_4_2 test_list_ptrs_xml_archive_dll: mingw-3_4_2 test_list_text_archive_dll: mingw-3_4_2 test_list_xml_archive_dll: mingw-3_4_2 test_map_binary_archive_dll: mingw-3_4_2 test_map_text_archive_dll: mingw-3_4_2 test_map_xml_archive_dll: mingw-3_4_2 test_mi_binary_archive_dll: mingw-3_4_2 test_mi_text_archive_dll: mingw-3_4_2 test_mi_xml_archive_dll: mingw-3_4_2 test_mult_archive_types_dll: mingw-3_4_2 test_multiple_ptrs_binary_archive_dll: mingw-3_4_2 test_multiple_ptrs_text_archive_dll: mingw-3_4_2 test_multiple_ptrs_xml_archive_dll: mingw-3_4_2 test_no_rtti_binary_archive_dll: mingw-3_4_2 test_no_rtti_text_archive_dll: mingw-3_4_2 test_no_rtti_xml_archive_dll: mingw-3_4_2 test_non_default_ctor2_binary_archive_dll: mingw-3_4_2 test_non_default_ctor2_text_archive: qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_text_archive_dll: mingw-3_4_2 qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_text_warchive: qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_text_warchive_dll: qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_xml_archive_dll: mingw-3_4_2 test_non_default_ctor_binary_archive_dll: mingw-3_4_2 test_non_default_ctor_text_archive_dll: mingw-3_4_2 test_non_default_ctor_xml_archive_dll: mingw-3_4_2 test_non_intrusive_binary_archive_dll: mingw-3_4_2 test_non_intrusive_text_archive_dll: mingw-3_4_2 test_non_intrusive_xml_archive_dll: mingw-3_4_2 test_null_ptr_binary_archive_dll: mingw-3_4_2 test_null_ptr_text_archive_dll: mingw-3_4_2 test_null_ptr_xml_archive_dll: mingw-3_4_2 test_nvp_binary_archive_dll: mingw-3_4_2 test_nvp_text_archive_dll: mingw-3_4_2 test_nvp_xml_archive_dll: mingw-3_4_2 test_object_binary_archive_dll: mingw-3_4_2 test_object_text_archive_dll: mingw-3_4_2 test_object_xml_archive_dll: mingw-3_4_2 test_optional_binary_archive_dll: mingw-3_4_2 test_optional_text_archive_dll: mingw-3_4_2 test_optional_xml_archive_dll: mingw-3_4_2 test_polymorphic_binary_archive_dll: mingw-3_4_2 test_polymorphic_text_archive_dll: mingw-3_4_2 test_polymorphic_xml_archive_dll: mingw-3_4_2 test_primitive_binary_archive_dll: mingw-3_4_2 test_primitive_text_archive_dll: mingw-3_4_2 test_primitive_xml_archive_dll: mingw-3_4_2 test_private_ctor_dll: mingw-3_4_2 test_recursion_binary_archive_dll: mingw-3_4_2 test_recursion_text_archive_dll: mingw-3_4_2 test_recursion_xml_archive_dll: mingw-3_4_2 test_registered_binary_archive_dll: mingw-3_4_2 test_registered_text_archive_dll: mingw-3_4_2 test_registered_xml_archive_dll: mingw-3_4_2 test_reset_object_address: vc-7_0 test_reset_object_address_dll: mingw-3_4_2 vc-7_0 test_set_binary_archive_dll: mingw-3_4_2 test_set_text_archive_dll: mingw-3_4_2 test_set_xml_archive_dll: mingw-3_4_2 test_shared_ptr_132_binary_archive: sun-5.8 test_shared_ptr_132_binary_archive_dll: mingw-3_4_2 sun-5.8 test_shared_ptr_132_text_archive: sun-5.8 test_shared_ptr_132_text_archive_dll: mingw-3_4_2 sun-5.8 test_shared_ptr_132_text_warchive: sun-5.8 test_shared_ptr_132_text_warchive_dll: sun-5.8 test_shared_ptr_132_xml_archive: msvc-8.0 sun-5.8 test_shared_ptr_132_xml_archive_dll: mingw-3_4_2 sun-5.8 test_shared_ptr_132_xml_warchive: sun-5.8 test_shared_ptr_132_xml_warchive_dll: sun-5.8 test_shared_ptr_binary_archive_dll: mingw-3_4_2 test_shared_ptr_text_archive_dll: mingw-3_4_2 test_shared_ptr_xml_archive_dll: mingw-3_4_2 test_simple_class_binary_archive_dll: mingw-3_4_2 vc-6_5 test_simple_class_ptr_binary_archive_dll: mingw-3_4_2 test_simple_class_ptr_text_archive_dll: mingw-3_4_2 test_simple_class_ptr_xml_archive_dll: mingw-3_4_2 test_simple_class_text_archive_dll: mingw-3_4_2 vc-6_5 test_simple_class_text_warchive_dll: vc-6_5 test_simple_class_xml_archive_dll: mingw-3_4_2 vc-6_5 test_simple_class_xml_warchive_dll: vc-6_5 test_split_binary_archive_dll: mingw-3_4_2 test_split_text_archive_dll: mingw-3_4_2 test_split_xml_archive_dll: mingw-3_4_2 test_tracking_binary_archive_dll: mingw-3_4_2 test_tracking_text_archive_dll: mingw-3_4_2 test_tracking_xml_archive_dll: mingw-3_4_2 test_unregistered_binary_archive_dll: mingw-3_4_2 test_unregistered_text_archive_dll: mingw-3_4_2 test_unregistered_xml_archive_dll: mingw-3_4_2 test_utf8_codecvt: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp test_variant_binary_archive_dll: mingw-3_4_2 test_variant_text_archive_dll: mingw-3_4_2 test_variant_xml_archive: borland-5_8_2 test_variant_xml_archive_dll: borland-5_8_2 mingw-3_4_2 test_variant_xml_warchive: borland-5_8_2 test_variant_xml_warchive_dll: borland-5_8_2 test_vector_binary_archive_dll: mingw-3_4_2 test_vector_text_archive_dll: mingw-3_4_2 test_vector_xml_archive_dll: mingw-3_4_2 test_void_cast_dll: mingw-3_4_2 |signals| dead_slot_test: gcc-3.3.6 gcc-3.3.6_linux qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp trackable_test: gcc-3.3.6 gcc-3.3.6_linux qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp |spirit| bug_fixes: sun-5.8 bug_fixes_debug: sun-5.8 char_strings_test: sun-5.8 char_strings_test_debug: sun-5.8 epsilon_tests: sun-5.8 epsilon_tests_debug: sun-5.8 file_iterator_tests: sun-5.8 file_iterator_tests_debug: sun-5.8 if_p_as_parser_tests: sun-5.8 mix_and_match_trees: sun-5.8 scanner_value_type_tests: intel-linux-9.0 while_p_as_parser_tests: sun-5.8 |test| basic_cstring_test: sun-5.8 boost_check_equal_str: sun-5.8 foreach_test: sun-5.8 ifstream_line_iterator_test: sun-5.8 output_test_stream_test: sun-5.8 parameterized_test_test: vc-6_5 vc-6_5-stlport token_iterator_test: sun-5.8 |tr1| run_random: sun-5.8 std_run_complex_overloads: sun-5.8 std_run_random: sun-5.8 std_test_bind: darwin-4.0.1 sun-5.8 std_test_complex: sun-5.8 std_test_function: sun-5.8 std_test_hash: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp sun-5.8 std_test_mem_fn: sun-5.8 std_test_random: sun-5.8 std_test_reference_wrapper: sun-5.8 std_test_result_of: sun-5.8 std_test_shared_ptr: sun-5.8 std_test_tuple: sun-5.8 std_test_tuple_tricky: sun-5.8 std_test_type_traits: sun-5.8 test_bind: darwin-4.0.1 test_boost: vc-7_1-stlport test_hash: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp vc-7_1-stlport test_random: sun-5.8 vc-7_1-stlport test_regex: vc-7_1-stlport test_type_traits: sun-5.8 tr1_extent_test: sun-5.8 tr1_is_abstract_test: sun-5.8 tr1_is_empty_test: sun-5.8 tr1_is_function_test: sun-5.8 tr1_is_member_func_test: sun-5.8 tr1_is_member_obj_test: sun-5.8 tr1_is_object_test: sun-5.8 tr1_is_reference_test: sun-5.8 tr1_rank_test: sun-5.8 tr1_tricky_function_type_test: sun-5.8 |typeof| function_binding_emulation: sun-5.8 function_binding_native: vc-6_5 vc-6_5-stlport vc-7_0 nested_typedef_emulation: cw-9.4 odr_no_uns: vc-6_5 vc-6_5-stlport vc-7_0 template_tpl_emulation: sun-5.8 |utility| addressof_test: sun-5.8 operators_test: gcc-3.4.5_linux_x86_64 |utility/enable_if| lazy: sun-5.8 |wave| test_re2c_lexer: sun-5.8

1 0

[BGL] Add edge with vertex' properties instead of vertex descriptors
by Wang Weiwei 14 Jul '06

14 Jul '06

Hello, I have a graph type as follows: namespace boost { enum vertex_flag_t { vertex_flag = 111 }; BOOST_INSTALL_PROPERTY(vertex, flag); } typedef boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, property<vertex_name_t, std::string, property<vertex_flag_t, bool, property<vertex_color_t, default_color_type> > >, no_property> graph_t; graph_t g; That means I want to associate a string as name, a flag, and a default color to each vertex of my graph, now I want to add edges to my graph directly using the vertex' properties instead of their descriptors, e.g. boost::add_edge("vertex1", "vertex2", g); How can I accomplish this? Thanks. Max

2 1

Re: [boost] [BGL] Graphviz
by Wang Weiwei 14 Jul '06

14 Jul '06

>On Fri, 14 Jul 2006 10:58:00 -0300, Wang Weiwei <wwwang(a)ccsdl.org> wrote: > >> I know BGL is compatible with Graphviz file format. >> and Graphviz is also an open source library. >> >> Is Graphviz ported to windows platform? > >Yes. > >http://www.graphviz.org/Download_windows.php > >Bruno > Thanks! I have downloaded the .src.tgz file and unzipped it. But can only get a .src file instead of an organised folder containing the C++ source files, which is what I expected. ??? More help needed. :-( Thanks again. Max

2 1

[BGL] Graphviz
by Wang Weiwei 14 Jul '06

14 Jul '06

hello, I know BGL is compatible with Graphviz file format. and Graphviz is also an open source library. Is Graphviz ported to windows platform? Thanks Max

2 1

Re: [boost] [asio] has anybody enabled SSL in a large project?
by Scott 14 Jul '06

14 Jul '06

Hey Chris, >Is your program single or multithreaded? Any chance you can boil >it down to a test program? What version of OpenSSL are you >using? It's multithreaded. On the client side, we have one thread that basically starts in the io_service::run() method. Before starting the thread, we attach a async_read() callback handler then start the thread. When the thread receives data, it stores all messages in a global map (locked from a mutex), that all threads have access to. Messages can be received by an application defined message id. After each message is received, it reattaches the async_read() callback handler so the io_service never runs out of work to do. Other threads in the client such as the UI thread share the same socket and can send requests thru the socket. However all replies are handled by the receiver thread. There are other threads as well, but they don't really interact with ASIO. Server The server creates multiple threads to listen for incoming connections. At the end of each ThreadEntry() func is a call to a shared global asio::io_service::run(). These threads do typical server things such as handle incoming requests and send back responses. We also have other threads that are constantly running. As an example, there's a thread that monitors CPU performance. Clients can request a monitor be placed on the CPU activity level and when it changes this thread will immediately send data to client on the change. This is not a typical request/response scenario as the data will be sent to the client at random intervals (as far as the client is concerned) without a corresponding request (other than the initial monitor request). Given some of the scenarios I've described above, do you seen any implementation issues? OpenSSL version is 0.9.8a. I'll attempt to modify the included ASIO SSL example program to better mimic some of the processes we have running. :) Thanks, Scott

2 1

Re: [boost] [asio] has anybody enabled SSL in a large project?
by EMalenfant＠interstarinc.com 14 Jul '06

14 Jul '06

From: viktor kougitko [mailto:klug@apriorit.com] > > From: "Scott" <cheesy4poofs(a)cox.net> > [snip] > > It all seemed great at first, because it seemed to > > seemlessly work. > > But eventually the communications break down. I either get > >asserts in > > my code from unexpected data in the stream, or the client hangs > > waiting for data that never appears or any of several > >different stream > > problems. It's rarely the exact same thing. But it > >eventually always > > fails. Especially on long sustained transfers. > > > > it seems that problem with buffer sizes try to change > asio/ssl/detail/openssl_stream_service.hpp > openssl_stream_service::create > ::BIO_new_bio_pair(&int_bio, 3*8192, &impl->ext_bio, 3*8192); > it helps in my case > I know next to nothing about asio's SSL implementation, but this reference to buffer sizes reminds me of a problem that we saw in a previous version of TAO: http://deuce.doc.wustl.edu/bugzilla/show_bug.cgi?id=1429 The fix in that case was to enable partial writes in open ssl, using SSL_set_mode to enable SSL_MODE_ENABLE_PARTIAL_WRITE and SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. HTH, Éric

2 1

Interest in a small array count facility?
by Gennaro Prota 14 Jul '06

14 Jul '06

Hi guys, a while ago there was some discussion about incorporating a compile-time array count facility in boost. I also provided an implementation for multidimensional arrays. Is there still interest for this? The benefits over the classical sizeof(array)/sizeof(array[0]) idiom are not overwhelming but at least there's a fair syntactical convenience and, of course, the advantage of unit test integration. If there's interest I can add it, to the utility subdirectory I guess (better suggestions are welcome; I really don't like using utility/ as a sort of repository for anything we have no better place for). --Gennaro.

8 32

Interest in super string class?
by Jeff Garland 14 Jul '06

14 Jul '06

I've been working on a little project where I've had to doing lots of string processing, so I decided to put together a string type that wraps up boost.regex and boost.string_algo into a string type. I also remember a discussion in the LWG about whether the various string algorithms should be built in or not -- well consider this a test -- personally I find it easier built into the string than as standalone functions. You can download from the string/text processing part of the vault: http://tinyurl.com/dbcye Below is the summary and motivating code example. Enjoy, Jeff -------------------------------------------------------------------------- Souped up string class that includes fancy query, replacement, and conversion functions. This type has the following main goals: * Is a drop-in replacement convertable to std::string and std::wstring * Provide case conversions and case insensitive comparison * Provide white space triming functions * Provide a split functions to parse a string into pieces base on string or regex * Provide sophisticated text replacement functions based on strings or regex * Provide append and insert functions for types Overall, this class is mostly a convience wrapper around functions available in boost.string_algo and boost.regex. This is best illustrated with some code: super_string s(" (456789) [123] 2006-10-01 abcdef "); s.to_upper(); cout << s << endl; s.trim(); //lop of the whitespace on both sides cout << s << endl; double dbl = 1.23456; s.append(dbl); //append any streamable type s+= " "; cout << s << endl; date d(2006, Jul, 1); s.insert_at(28, d); //insert any streamable type cout << s << endl; //find the yyyy-mm-dd date format if (s.contains_regex("\\d{4}-\\d{2}-\\d{2}")) { //replace parens around digits with square brackets [the digits] s.replace_all_regex("\$([0-9]+)\$", "__[$1]__"); cout << s << endl; //split the string on white space to process parts super_string::string_vector out_vec; unsigned int count = s.split_regex("\\s+", out_vec); if (count) { for(int i=0; i < out_vec.size(); ++i) { out_vec[i].replace_first("__",""); //get rid of first __ in string cout << i << " " << out_vec[i] << endl; } } } //wide strings too... wsuper_string ws(L" hello world "); ws.trim_left(); wcout << ws << endl; Expected output is: (456789) [123] 2006-10-01 ABCDEF (456789) [123] 2006-10-01 ABCDEF (456789) [123] 2006-10-01 ABCDEF1.23456 (456789) [123] 2006-10-01 2006-Jul-01 ABCDEF1.23456 __[456789]__ [123] 2006-10-01 2006-Jul-01 ABCDEF1.23456 0 [456789]__ 1 [123] 2 2006-10-01 3 2006-Jul-01 4 ABCDEF1.23456 hello world

22 95

Re: [boost] [Boost-users] bug in documentation
by Daryle Walker 14 Jul '06

14 Jul '06

On 7/11/06 4:40 PM, "Ovanes Markarian" <om_boost(a)keywallet.com> wrote: > there is currently a bug in boost::lambda documentation > (<http://www.boost.org/doc/html/lambda/s03.html>). > > Current version: > > template <class T> : public binary_function<T, T, T> > struct plus { > T operator()(const T& i, const T& j) const { > return i + j; > } > }; > > should be: > > template <class T> > struct plus : public binary_function<T, T, T> > { > T operator()(const T& i, const T& j) const { > return i + j; > } > }; Fixed. (Hopefully; this HTML page is generated. There are two possible files it could come from. The first one, $ROOT/libs/lambda/doc/lambda.xml, was already OK. I fixed the second file at $ROOT/libs/lambda/doc/detail/lambda_doc.xml in the trunk as revision 1.15. Please undo this if changing this file was inappropriate. I don't know which of the two Lambda XML doc files is important.) -- Daryle Walker Mac, Internet, and Video Game Junkie darylew AT hotmail DOT com

1 0