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

Re: [boost] Exception Visitor
by Sohail Somani 27 Jul '06

27 Jul '06

> -----Original Message----- > From: boost-bounces(a)lists.boost.org > [mailto:boost-bounces@lists.boost.org] On Behalf Of Alexander Nasonov > > 2. catch(...) catches too many things on some compilers. I > know only one (very popular) compiler that also catches > system exceptions (aka SEH). Though, I don't remember how it > rethrows those exceptions. If you are talking about msvc, I think C++ exceptions are implemented on top of SEH. Sohail

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[Boost-bugs] [ boost-Bugs-1529988 ] compile warning in token-functions.hpp
by SourceForge.net 27 Jul '06

27 Jul '06

Bugs item #1529988, was opened at 2006-07-27 14:24 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=1529988&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: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: James W. Walker (jwwalker) Assigned to: Nobody/Anonymous (nobody) Summary: compile warning in token-functions.hpp Initial Comment: When compiling with -Wall in gcc 4, token-functions.hpp gives a warning about escaped_list_error. The warning is "declaration of 'what' shadows a member of 'this'". ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1529988&group_… ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Concept traits
by Chad Parry 27 Jul '06

27 Jul '06

What is the fate of the operator_concept_traits library that Terje Slettebø introduced on the Boost mailing list in 2004? A "has_plus_op" metafunction would be immensely useful, if only as a foundation for other generic code. Is the source code in a vault somewhere? -- chad

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[Random] Non-Deterministic Generator Not Included in Library
by Jill Stellman 27 Jul '06

27 Jul '06

I am using the non-deterministic random number generator from the Boost.Random library. I included nondet_random.hpp in my source code, but it does not contain the implementation. I attempted to use Bjam to build the Boost.Random library, but it did not build. I used the following command: bjam -sTOOLS=gcc --prefix=/usr --with-boost_random --without-python install which resulted in (only) the following output Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (and if you don't know what ICU is then you probably don't need it). ...found 6900 targets... and (obviously?) did not build the library for boost_random. I am using boost 1.33.1-4, bjam 3.1.11-1, g++ 4.1.2, Debian 64bit unstable. I eventually just built a library manually by making random_device.o from random_device.cpp and using ar, which seems to work. Unfortunately, this process will not work for me as a permanent solution. On searching the mailing list archives, I found the following thread: http://thread.gmane.org/gmane.comp.lib.boost.devel/106229/focus=106228 which unfortunately has no further responses. Does anyone know if anything has been done to address this issue or if there is some reason why the non-deterministic random number generator should not be used? Thanks, Jill

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Computational Geometry Library
by Arash Partow 27 Jul '06

27 Jul '06

Hi all, I was wondering if there was anyone working on / managing the BOOST geometry libraries? I can't seem to see if anyone has already put their hand up or not. I've noticed that it was a contender for the 2006 SoC, and that there are a couple of code samples in the BOOST vault. In any case I'm planning on making a preliminary library submission sometime soon, I've been contact with one of the other code submitters, I just want to make sure there isn't an effort already underway, I've searched the mailing list, and have found anything of interest. If anyone has any information about this topic, please feel free to comment as it would help a great deal. As for a preliminary library design I propose the following: * primitive geometric structures 2D/3D only (point,line,segment,triangle...) * operations between primitives (intersection, distance, inclusion...) * higher level algorithms in a structured fashion similar to BGL: * hulls, rotating caliper * triangulation (point sets, polygons) * boolean operations over polygons Note: algorithms will be named based on method then algorithm type for example convex hull variations would be: 1. graham_scan_convex_hull(it_begin,it_end,out_it) 2. jarvis_march_convex_hull(it_begin,it_end,out_it) 3. gift_wrapping_convex_hull(it_begin,it_end,out_it) 4. quick_convex_hull(it_begin,it_end,out_it) * precision related issues to be dealt with mainly by user specified floating point type, and partially at the algorithm level * keep code bloat and over-engineering to a minimum. ie: in cgal to determine whether or not 2 segments intersect you need roughly 35 lines of source code. Should be something like the following: boost::geometry { segment<T,D> seg1 = make_segment(....); segment<T,D> seg2 = make_segment(....); . . if (intersect(seg1,seg2)) ...; else ...; } Arash Partow ________________________________________________________ Be one who knows what they don't know, Instead of being one who knows not what they don't know, Thinking they know everything about all things. http://www.partow.net

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[system] system-0.2 request for comments
by Beman Dawes 27 Jul '06

27 Jul '06

system-0.2.zip has been posted in the file vault. See the "system" directory at http://boost-consulting.com/vault/ This is a major upgrade, reflecting comments and suggestions from many Boosters, but in particular Chris Kohlhoff and Peter Dimov. Important changes include: * Class error_code now supports additional categories of errors, such as those that may bubble up from asio. I'll be watching for for a response from Chris to make sure this meets asio's needs. * Refactoring into two headers, boost/system/error_code.hpp and boost/system/system_error.hpp, in line with the fine header granularity normal in Boost libraries. Docs refactored accordingly. * Addition of a header boost/identifier.hpp. For years I've used a similar class to provide the type safety and freedom from unwanted conversions that is missing when a simple int is used for an identifier. This is logically separate from the system stuff, but for convenience is included in the system package since error_code.hpp uses it. * More complete docs. * Jamfiles provided. * More extensive testing, with all tests passing for late-model GCC, CodeWarrior, Intel, and Microsoft compilers on Windows, and GCC on the Mac. Not tested yet on Linux. Comments welcome! --Beman

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Boost regression notification (2006-07-27 [RC_1_34_0])
by Douglas Gregor 27 Jul '06

27 Jul '06

Boost Regression test failures Report time: 2006-07-27T08:00:00Z 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… 277 failures in 25 libraries algorithm/string (1) concept_check (1) filesystem (4) graph (5) io (1) iostreams (10) mpl (5) multi_index (1) numeric/conversion (4) numeric/interval (1) numeric/ublas (7) parameter (20) program_options (9) python (90) random (1) rational (4) regex (4) serialization (27) signals (16) spirit (1) test (2) tr1 (51) typeof (9) utility (1) xpressive (2) |algorithm/string| regex: borland-5_6_4 |concept_check| class_concept_check_test: vc-7_1-stlport |filesystem| 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 csr_graph_test: sun-5.8 graphviz_test: msvc-8.0 msvc-8.0 vc-7_1-stlport |io| ios_state_unit_test: gcc-4.1.0_linux_x86_64 |iostreams| bzip2_test: msvc-7.1 msvc-8.0 compose_test: borland-5_6_4 example_test: vc-6_5-stlport filtering_stream_test: vc-7_1-stlport finite_state_filter_test: cw-9.4 gzip_test: msvc-7.1 msvc-8.0 zlib_test: msvc-7.1 msvc-8.0 |mpl| multiset: gcc-4.0.3_linux gcc-4.1.0_linux_x86_64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 vector_c: sun-5.8 |multi_index| test_projection: gcc-4.0.3_linux |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| test_float: vc-7_1-stlport |numeric/ublas| concepts: vc-7_1-stlport vc-7_1-stlport test1: vc-7_1-stlport test2: vc-7_1-stlport test4: vc-7_1-stlport test5: vc-7_1-stlport vc-7_1-stlport |parameter| duplicates: borland-5_6_4 borland-5_8_2 maybe: vc-6_5 vc-6_5-stlport vc-7_0 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_8_2 vc-6_5-stlport singular: borland-5_6_4 borland-5_8_2 unnamed_fail: vc-6_5 vc-6_5-stlport vc-7_0 |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: borland-5_8_2 cw-9.4 variable_map_test_dll: borland-5_8_2 cw-9.4 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_4_4_tru64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 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_4_4_tru64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 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_4_4_tru64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 sun-5.8 pointer_type_id_test: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 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 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_4_4_tru64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 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 vc-6_5 vc-6_5-stlport vc-7_0 |regex| regex_regress: vc-6_5 vc-6_5-stlport regex_regress_dll: vc-6_5 vc-6_5-stlport |serialization| test_class_info_load_text_warchive: vc-6_5 test_demo_xml: msvc-8.0 test_list_binary_archive_dll: msvc-8.0 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: 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_reset_object_address: vc-7_0 test_reset_object_address_dll: vc-7_0 test_simple_class_binary_archive_dll: vc-6_5 test_simple_class_text_archive_dll: vc-6_5 test_simple_class_text_warchive_dll: vc-6_5 test_simple_class_xml_archive_dll: vc-6_5 test_simple_class_xml_warchive_dll: vc-6_5 test_variant_xml_archive: borland-5_8_2 test_variant_xml_archive_dll: borland-5_8_2 gcc-3.3.6_linux test_variant_xml_warchive: borland-5_8_2 test_variant_xml_warchive_dll: borland-5_8_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| mix_and_match_trees: sun-5.8 |test| parameterized_test_test: vc-6_5 vc-6_5-stlport |tr1| run_random: sun-5.8 std_run_complex_overloads: sun-5.8 std_run_random: sun-5.8 std_test_bind: sun-5.8 std_test_complex: sun-5.8 std_test_function: sun-5.8 std_test_hash: 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_reference_wrapper_tricky: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux gcc-3.4.5_linux_x86_64 gcc-4.0.3_linux gcc-4.1.0_linux_x86_64 intel-linux-9.0 mingw-3_4_2 msvc-7.1 msvc-8.0 qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_gpp qcc-3.3.5_gpp vc-7_1-stlport 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_boost: vc-7_1-stlport test_hash: vc-7_1-stlport test_random: sun-5.8 vc-7_1-stlport test_reference_wrapper_tricky: gcc-3.2.3_linux gcc-3.3.6_linux gcc-3.4.5_linux gcc-3.4.5_linux_x86_64 gcc-4.0.3_linux gcc-4.1.0_linux_x86_64 intel-linux-9.0 mingw-3_4_2 msvc-7.1 msvc-8.0 qcc-3.3.5_cpp qcc-3.3.5_cpp qcc-3.3.5_gpp qcc-3.3.5_gpp test_regex: vc-7_1-stlport test_type_traits: sun-5.8 tr1_tky_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| operators_test: gcc-3.4.5_linux_x86_64 |xpressive| test2: msvc-8.0 test9: gcc-3.3.6_linux

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error in boost/config/platform/hpux.hpp (thread support)
by Julien Delacroix 27 Jul '06

27 Jul '06

Here is the code that handle thread support in boost/config/platform/hpux.hpp : #if defined(__GNUC__) # if (__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 3)) // GNU C on HP-UX does not support threads (checked up to gcc 3.3) # define BOOST_DISABLE_THREADS # elif !defined(BOOST_DISABLE_THREADS) // threads supported from gcc-3.3 onwards: # define BOOST_HAS_THREADS # define BOOST_HAS_PTHREADS # endif #endif This code does not set BOOST_HAS_THREADS and BOOST_HAS_PTHREADS when compiling with aCC on HP-UX. This cause the boost::shared_ptr to be unsafe in a multithreaded environment . We fixed this problem by adding the following lines in user.hpp : // Enable threading support with aCC !! #ifdef _AMD_THREADS_ # ifdef _AMD_UNIX_HPUX_ # define BOOST_HAS_THREADS # define BOOST_HAS_PTHREADS # endif #endif But I suggest that in future release you use the following code in boost/config/platform/hpux.hpp #if defined(__GNUC__) # if (__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 3)) // GNU C on HP-UX does not support threads (checked up to gcc 3.3) # define BOOST_DISABLE_THREADS # endif #endif #if !defined(BOOST_DISABLE_THREADS) // threads supported # define BOOST_HAS_THREADS # define BOOST_HAS_PTHREADS # endif Maybe it will be necessary to check aCC version and set BOOST_DISABLE_THREADS for old aCC version that do not have thread suport... Regards Julien

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[mpl] BOOST_MPL_AUX_LAMBDA_SUPPORT and non-type template parms
by JOAQUIN LOPEZ MU?Z 27 Jul '06

27 Jul '06

Suppose we've got the following: template<typename T, int N> struct foo { typedef ... type; }; and we want to add MPL lambda support for broken compilers. Should we have #1 or #2? //1 template<typename T, int N> struct foo { BOOST_MPL_AUX_LAMBDA_SUPPORT(1,foo,(T)) typedef ... type; }; //2 template<typename T, int N> struct foo { BOOST_MPL_AUX_LAMBDA_SUPPORT(2,foo,(T,N)) typedef ... type; }; The docs on BOOST_MPL_AUX_LAMBDA_SUPPORT seem not to take into account class templates where some params are non-type. Maybe the macro does not work for them? Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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[python]enum_ docstring?
by Colin Grealy 27 Jul '06

27 Jul '06

Is there any particular reason that enum_ doesn't accept a docstring? Was it a conciouse design decision, a technical issue or merely an oversight? ------------------------------------------------------------------ Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel is a fine invention, but the wheel does not go nearly as well with pizza. - Dave Barry Colin Grealy cgrealy at mailREMOVETHIScan dot com +64 21 527590

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