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question about new "export.hpp"
by Robert Ramey 28 Sep '06

28 Sep '06

Dave, I've been running serialization tests of the current "HEAD" (1.35) version on my local machine. Right now All the tests which use the "export" functionality are failing when the tests are built and run in release mode. All tests (except one) pass when tests are built/run in debug mode. In particular the "test_exported" fails when built in release mode and passes with debug mode. I've made couple of seemingly unrelated changes on my local system so it IS possible that I broke something - but I'm wondering if perhaps you neglected to test the changes to "export" in release mode? Knowing this would be helpful to me. In the past I've have a lot of problems with this functionality to work with programs compiled in release mode. Robert Ramey

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[parameter] parameters<> and result_of
by Eric Niebler 28 Sep '06

28 Sep '06

Objects of the parameters<> type are callable entities, but they do not play well with result_of: BOOST_PARAMETER_KEYWORD(tag, foo) typedef parameter::parameters< parameter::optional< tag::foo > > args_type; // Doesn't compile: typedef result_of< args_type( int const & ) >::type pack_type; args_type args; pack_type pack( args( 1 ) ); Is there any way to tell what the return type of args( 1 ) is? I need to be able to return an argument pack from a generic function. Another feature request: it would be nice if parameters<> were a valid MPL sequence that I could manipulate with MPL algorithms. -- Eric Niebler Boost Consulting www.boost-consulting.com

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Re: [boost] [asio] SSL operation sporadically returns "Access is denied"
by Scott 28 Sep '06

28 Sep '06

Hi Chris, > > When the error occurs, here's the values I'm seeing going from > > top to bottom: > > > > int rc = primitive_( session_ ); // -1 > > int sys_error_code = (int)ERR_get_error(); // 0 > > bool is_operation_done = (rc > 0); // false > > int error_code = !is_operation_done ? // 5 > > bool is_read_needed = (error_code == SSL_ERROR_WANT_READ); > > // false > > bool is_write_needed = (error_code == SSL_ERROR_WANT_WRITE > > || // false > > bool is_shut_down_received = // false > > bool is_shut_down_sent = // false > > OK, this is not quite what I expected :( I had a skim through > the openssl source but couldn't find why using the openssl API > in non-blocking mode should return SSL_ERROR_SYSCALL. > > It's a bit hard to know where to go next without access to a > reproducible test case. You might try adding some debug tracing > that prints the amount of data that passed in and out of the > BIO_write and BIO_read calls to see if anything looks wrong. I have attached a simple server/client SSL program that demonstrates the "Access is denied" error on windows. The client eventually gets the error. It's quite possible I'm misusing the ASIO library, so please point out any errors you see. In the client, I have 2 threads. The main thread is the one that sends random messages to the server. The other thread handles all incoming responses and prints out the number of bytes received. Both threads share the same io_service. It is my understanding from the docs that multiple threads can all share an io_service, but please let me know if the code is incorrect. Thanks, Scott

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Re: [boost] [RC1_34_0]Request to add Intel C 9.1 + VC8 to the supported compilers list
by Sohail Somani 28 Sep '06

28 Sep '06

> -----Original Message----- > From: boost-bounces(a)lists.boost.org > [mailto:boost-bounces@lists.boost.org] On Behalf Of Stefan Slapeta > > Sohail Somani wrote: > > > > Just to clarify, this is non-x64? > > yes. however, as for x64, AFAICS there are only 'common' > problems which > affect other compilers in the same way. there's nothing > intel-specific. > > unfortunately, I don't have a 64 bit maschine... Well I am seeing some warnings with boost threads is all. I'll run some tests on x64 and send you the reults if that will help. Should I do it off of HEAD? Thanks, Sohail

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Boost inspection notification (2006-09-28/RC_1_34_0) *LC*
by Rene Rivera 28 Sep '06

28 Sep '06

Boost Inspection Report Run Date: 16:03:19 UTC, Thursday 28 September 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: 11685 files scanned 904 directories scanned (including root) 2695 problems reported Problem counts: 1684 files missing Boost license info or having wrong reference text 1011 files missing copyright notice Summary: any (3) archive (1) array (3) assign (2) bind (9) boost-root (6) boostbook (70) build (436) compatibility (2) compose (2) concept_check (24) conversion (5) detail (4) disjoint_sets (6) doc (56) filesystem (7) format (12) function (17) functional (8) graph (180) inspect (1) integer (9) io (2) iostreams (2) iterator (11) lambda (14) libs (8) logic (2) math (1) mem_fn (2) more (31) mpl (930) multi_array (16) numeric (214) optional (3) people (90) pool (32) program_options (45) property_map (17) ptr_container (113) python (3) quickbook (11) random (22) range (18) rational (5) regex (4) regression (67) release (3) serialization (16) signals (32) smart_ptr (15) test (5) timer (3) tokenizer (9) tools (6) tuple (9) utility (26) variant (43) wiki (2) Details: *L* missing Boost 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Boost regression notification (2006-09-28 [RC_1_34_0])
by Douglas Gregor 28 Sep '06

28 Sep '06

Boost Regression test failures Report time: 2006-09-28T12:24:05Z 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… 160 failures in 13 libraries filesystem (5) graph (2) io (1) iostreams (14) mpl (4) parameter (57) program_options (9) python (23) rational (5) serialization (16) spirit (21) test (2) utility (1) |filesystem| convenience_test: msvc-8.0 fstream_test: msvc-8.0 mbcopy: sun-5.8 path_test: msvc-8.0 wide_test: sun-5.8 |graph| graphviz_test: msvc-8.0 serialize: sun-5.8 |io| ios_state_unit_test: gcc-4.1.0_linux_x86_64 |iostreams| bzip2_test: msvc-7.1 msvc-7.1 msvc-8.0 msvc-8.0 example_test: vc-6_5-stlport finite_state_filter_test: cw-9.4 gzip_test: msvc-7.1 msvc-7.1 msvc-8.0 msvc-8.0 zlib_test: msvc-7.1 msvc-7.1 msvc-8.0 msvc-8.0 |mpl| multiset: gcc-4.1.0_linux_x86_64 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 vector_c: sun-5.8 |parameter| basics: intel-vc8-win-9.1 msvc-8.0 compose: intel-vc8-win-9.1 msvc-8.0 deduced: intel-vc8-win-9.1 msvc-8.0 deduced_dependent_predicate: intel-vc8-win-9.1 msvc-8.0 vc-6_5 vc-6_5-stlport earwicker: intel-vc8-win-9.1 msvc-8.0 efficiency: intel-vc8-win-9.1 msvc-8.0 macros: intel-vc8-win-9.1 msvc-8.0 normalized_argument_types: borland-5_6_4 borland-5_8_2 intel-vc8-win-9.1 msvc-8.0 vc-6_5 vc-6_5-stlport vc-7_0 ntp: intel-vc8-win-9.1 msvc-8.0 optional_deduced_sfinae: borland-5_6_4 borland-5_8_2 intel-vc8-win-9.1 msvc-8.0 sun-5.8 preprocessor: darwin-4.0.1 gcc-3.3.6 gcc-3.4.4 gcc-4_0_3_tru64 preprocessor_deduced: borland-5_6_4 borland-5_8_2 intel-vc8-win-9.1 msvc-8.0 sun-5.8 python_test: cw-9.4 darwin-4.0.1 gcc-3.3.6 gcc-3.4.4 gcc-4.1.1_sunos_i86pc gcc-4_0_3_tru64 intel-vc8-win-9.1 msvc-7.1 msvc-8.0 msvc-8.0 qcc-3.3.5_gpp sun-5.8 sfinae: borland-5_8_2 intel-vc8-win-9.1 msvc-8.0 vc-6_5-stlport unnamed: msvc-7.1 msvc-8.0 |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| bases: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc hp_cxx-71_006_tru64 exec: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc hp_cxx-71_006_tru64 numpy: darwin-4.0.1 gcc-3.3.6 gcc-3.4.4 pointee: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc hp_cxx-71_006_tru64 pointer_type_id_test: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc hp_cxx-71_006_tru64 select_from_python_test: gcc-4.1.1_sunos_i86pc slice: darwin-4.0.1 gcc-3.3.6 gcc-3.4.4 gcc-4.1.0_linux_x86_64 upcast: gcc-3_4_4_tru64 gcc-4.1.1_sunos_i86pc hp_cxx-71_006_tru64 |rational| rational_test: borland-5_6_4 sun-5.8 vc-6_5 vc-6_5-stlport vc-7_0 |serialization| test_class_info_load_text_warchive: vc-6_5 test_non_default_ctor2_text_archive: qcc-3.3.5_cpp test_non_default_ctor2_text_archive_dll: qcc-3.3.5_cpp test_non_default_ctor2_text_warchive: qcc-3.3.5_cpp test_non_default_ctor2_text_warchive_dll: 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 test_variant_xml_warchive: borland-5_8_2 test_variant_xml_warchive_dll: borland-5_8_2 |spirit| action_tests: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 qcc-3.3.5_cpp qcc-3.3.5_gpp action_tests_debug: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 qcc-3.3.5_cpp qcc-3.3.5_gpp directives_tests: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 directives_tests_debug: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 mix_and_match_trees: sun-5.8 primitives_tests: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 primitives_tests_debug: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 scanner_tests: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 scanner_tests_debug: gcc-3.4.5_linux_x86_64 gcc-4.1.0_linux_x86_64 |test| parameterized_test_test: vc-6_5 vc-6_5-stlport |utility| operators_test: gcc-3.4.5_linux_x86_64

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[BGL] Performance improvement for minimum spanning tree algo
by Magnus Ekdahl 28 Sep '06

28 Sep '06

Hi, I posted suggestions for improving the prim minimum spanning tree implementation a while ago[1]. This is a 'ping' mail to see if its possible to get further comments on how to progress forward. Benchmarks summarized: new prim_minimum_spanning_tree 47.585s current prim 3m26.38s (338% slower) kruskal_minimum_spanning_tree 40m57s (5063% slower) 1. http://lists.boost.org/Archives/boost/2006/08/109553.php -- Magnus Ekdahl

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[parameter] Recent fix introduced new regressions
by larsbj＠gullik.net 28 Sep '06

28 Sep '06

The recent fixes to parameter introduced new regressions errors for gcc 4.1.1 on linux x86_64. I am pretty sure this is error in the test itself, and nothing inherent in boost::parameter. This is the error: http://tinyurl.com/sxu4h -- Lgb

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Re: [boost] interest in hyper graph library
by Oliver Kullmann 28 Sep '06

28 Sep '06

On Wed, Sep 20, 2006 at 07:00:38AM -0700, Brian Makin wrote: > > I am not terribly familiar with the SAT problem (on a > cursory basis only). > > Do you have a reference or example which would > demonstrate the requirements which would be placed on a > hgraph library? > Satisfiability (SAT) and constraint satisfaction (CSP) are very fast moving targets; but regarding the data structure typically one needs for every vertex the list of hyperedges in which the vertex occurs. (Sometimes you need direct access only to a user-specified subset.) Then there is the issue of operations: removing a hyperedge, adding a hyperedge, removing a set of vertices (in several variations (!)), adding a vertex. One often needs the possibility to undo these operations (using a stack of operation tokens). And then there is the quite important issue of "eagerness" and "laziness": Really performing these operations, or only to "register" them (for example removing a vertex: really removing it, or only to store that it was removed, and taking this into account when performing operations). I think hypergraphs are more linked to non-polynomial time algorithms than graphs, and then one needs a (great) variety of datastructures, they must be extendible, and, very important for many users, you need the possibility to overcome the public interface! Another issue is the handling of hyperedges of different lengths: Empty? Unit (loop)? Very important in the SAT area are length-2 hyperedges (edges). Allowing for multiple hyperedges? With names? Attaching information? As a data structure a "general hypergraph" is more natural, but often in applications you need a "hypergraph" (no duplicated hyperedges); sometimes even it should be simple (no subsumed hyperedges). This subsumption elimination is a non-trivial process. > My current app the graph is representing netlists of > circuits. > this is quite close to a SAT application; libraries have big problems here, because a SAT solver operating one such a hypergraph, used for its problem representation, needs to access and augment the data structure in many ways (you need "online" access, and "on the fly", and can't afford import and export). > Actually I intend to create a multilevel hypergraph. What do you mean with "multilevel"? Oliver

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[CVS] Outage tomorrow...
by Rene Rivera 27 Sep '06

27 Sep '06

FYI: ( 2006-09-27 09:41:13 - ) On 2006-09-28 beginning at 09:00 Pacific, the CVS servers will be down briefly for scheduled maintenance. Each machine's downtime should be a half hour or less, and each project should have access to one of its two CVS-access methods at all times. All systems should be back up by 11:00 Pacific. -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - grafikrobot/yahoo

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