December 2005 - Boost - lists.boost.org

[graph] Proposal: Algorithm for the Shortest Path Problem with Resource Constraints
by Michael Drexl 09 Dec '05

09 Dec '05

Hi, is there any interest in including an algorithm for solving the shortest path problem with resource constraints (SPPRC) in the Boost Graph library? I've implemented an exact algorithm for this NP-hard problem. The algorithm is basically a label-setting algorithm based on dynamic programming. It is parameterized on the graph type (of course) and the type of the resource container (data structures specifying what resources there are and how they are to be managed in the course of the algorithm). Some remarks on the underlying problem: The SPPRC seeks the shortest (fastest, cheapest) path in a network with arbitrary arc lengths (travel times, costs) from an origin node to a destination node subject to one or more resource constraints. For example, one might seek a path of minimum length from o to d subject to the constraints that - the total travel time must not exceed some upper bound and/or - the total amount of some good that has to be picked up at the vertices along the path be less than or equal to some capacity limit and/or - if two vertices i_1 and i_2 are visited on a path, then i_1 must be visited before i_2 - etc. The problem is NP-hard in the strong sense. If the path need not be elementary, i.e., if it is allowed that vertices or arcs are visited more than once, the problem can be solved in pseudopolynomial time. A recent survey on the problem is: Desaulniers, G.; Irnich, S. (2005): Shortest Path Problems with Resource Constraints in: Desaulniers, G.; Desrosiers, J.; Solomon, M. (eds.) (2005): Column Generation Springer, New York, pp. 33--65 (available online via www.dpor.rwth-aachen.de/de/publikationen/pdf/or_2004-01.pdf) Regards, Michael D.

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[interval] unprotect &c.
by David Abrahams 09 Dec '05

09 Dec '05

I find this in the documentation, which sounds self-contradictory: > Unprotected rounding > As explained in this section, a good way to speed up computations > when the base type is a basic floating-point type is to unprotect > the intervals at the hot spots of the algorithm. This method is safe > and really an improvement for interval computations. But please > remember that any basic floating-point operation executed inside the > unprotection blocks will probably have an undefined behavior (but > only for the current thread). a. That doesn't sound "safe." 1. there's the potential undefined behavior. 2. there's the whole notion of "unprotect"-ing the computation. Don't I lose the value of interval computation? That is, will my computed results still reflect the potential error due to floating-point precision limits? b. How am I going to do any useful computation in an unprotection block without doing any basic floating-point operations? If it's not self-contradictory, could you explain what it means and, if possible, improve the wording? >From reading the docs, it's very unclear what optimization this unprotection mechanism allows, and it's unclear when/how it's mathematically valid to use the results (e.g. why not do all computations that way if it's faster?) I get only a vague sense of the answers to these questions from the docs. Yes, I read the Horner example. Finally, the use of the term "unprotection block" looks extremely misleading. It looks like you have unprotected datatypes, but "block" implies that there's a lexical scope within which unprotection is in effect. There does seem to be such a notion for rounding mode (by declaring an auto variable of I::traits_type::rounding), but not so for unprotect. Unless I'm gravely confused, which is possible, in which case, again, the docs need to be upgraded. Thanks, -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[shared_ptr] base class conversion problem
by Artyom Borodkin 09 Dec '05

09 Dec '05

This following code does not work, but it could. You should just add the template constructor. So, why not? #include <boost/shared_ptr.hpp> #include <iostream> class A{}; class B{}; class C : public A{}; void foo( boost::shared_ptr<A> pa ){ std::cout << "A"; } void foo( boost::shared_ptr<B> pb ){ std::cout << "B"; } int main(){ boost::shared_ptr<C> ptr(new C); foo( ptr ); return 0; } //--------------------------- If add this template constructor it will help with ambiguous problem. template< class T2 > shared_ptr( const shared_ptr<T2>& s_ptr, typename enable_if<is_convertible<T*,T2*>::result, void* >::type = 0) { ... }

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[shared_ptr] conversion problem
by Artyom Borodkin 09 Dec '05

09 Dec '05

This following code does not work, but it could. You should just add the template constructor. So, why not? #include <boost/shared_ptr.hpp> #include <iostream> class A{}; class B{}; class C : public A{}; void foo( boost::shared_ptr<A> pa ){ std::cout << "A"; } void foo( boost::shared_ptr<B> pb ){ std::cout << "B"; } int main(){ boost::shared_ptr<C> ptr(new C); foo( ptr ); return 0; } //--------------------------- If add this template constructor it will help with ambiguous problem. template< class T2 > shared_ptr( const shared_ptr<T2>& s_ptr, typename enable_if<is_convertible<T*,T2*>::result, void* >::type = 0) { ... }

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[interval] empty and whole
by David Abrahams 08 Dec '05

08 Dec '05

> The static functions empty and whole produce the corresponding > intervals. "Produce the corresponding intervals" is almost content-free. It's pretty easy to guess what the empty interval must be ([0,0] I presume), but to someone not already versed in interval arithmetic, guessing at the meaning of "whole" is a lot harder. What does that mean? -- Dave Abrahams Boost Consulting www.boost-consulting.com

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Bug list status
by Marshall Clow 08 Dec '05

08 Dec '05

Six weeks ago: 96 open bugs Five weeks ago: 94 open bugs Four weeks ago: 93 open bugs Three weeks ago: 95 open bugs. Two weeks ago: 77 open bugs. One week ago: 70 open bugs Today: 64 open bugs Thanks for fixing bugs, everyone! If you think that a bug has been assigned incorrectly, please let me know. Bug counts per assignee: Mike Glassford 13 Doug Gregor 9 Stephen Cleary (shammah) 6 Jonathan Turkanis 4 Joerg Walter 4 Beman Dawes 3 Joel de guzman (djowel) 3 Jeff Garland (az_sw_dude) 3 Gennadiy Rozental (rogeeff) 3 John R. Bandela 2 Eric Friedman (ebf) 2 Thorsten Ottosen (nesotto) 2 Vladimir Prus 2 Jeremy Siek 2 Kevlin Henney 1 Hubert Holin 1 Samuel Kremp 1 Jens Maurer 1 John Maddock 1 Rene Rivera (grafik) 1 Here are the currently opened bugs, sorted by assignee. Assignee: az_sw_dude <http://sourceforge.net/users/az_sw_dude/> Summary: wrong usage of ios_base::narrow Bug #: 989487 <http://sourceforge.net/tracker/index.php?func=detail&aid=989487&group_id=75…> Assignee: az_sw_dude <http://sourceforge.net/users/az_sw_dude/> Summary: date_time type conversion warning Bug #: 1069225 <http://sourceforge.net/tracker/index.php?func=detail&aid=1069225&group_id=7…> Assignee: az_sw_dude <http://sourceforge.net/users/az_sw_dude/> Summary: local_adjustor::utc_to_local throws 'Time label invalid' Bug #: 1220011 <http://sourceforge.net/tracker/index.php?func=detail&aid=1220011&group_id=7…> Assignee: beman_dawes <http://sourceforge.net/users/beman_dawes/> Summary: clock is not portable Bug #: 788762 <http://sourceforge.net/tracker/index.php?func=detail&aid=788762&group_id=75…> Assignee: beman_dawes <http://sourceforge.net/users/beman_dawes/> Summary: boost::filesystem::exists has bugs with UNC paths Bug #: 1164057 <http://sourceforge.net/tracker/index.php?func=detail&aid=1164057&group_id=7…> Assignee: beman_dawes <http://sourceforge.net/users/beman_dawes/> Summary: is_empty sets my paths' _M_p to 0xffffffff Bug #: 1361625 <http://sourceforge.net/tracker/index.php?func=detail&aid=1361625&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: EdgeListS = setS for adjacency_list does not work Bug #: 1163077 <http://sourceforge.net/tracker/index.php?func=detail&aid=1163077&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: LEDA graph adaptors do not handle hidden nodes properly Bug #: 1168431 <http://sourceforge.net/tracker/index.php?func=detail&aid=1168431&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: function.hpp breaks assign.hpp Bug #: 1181272 <http://sourceforge.net/tracker/index.php?func=detail&aid=1181272&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: random_vertex/random_edge are unnecessarily inefficient Bug #: 1204684 <http://sourceforge.net/tracker/index.php?func=detail&aid=1204684&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: Document copy_component Bug #: 1204688 <http://sourceforge.net/tracker/index.php?func=detail&aid=1204688&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: reverse_graph and constness of property maps Bug #: 1246336 <http://sourceforge.net/tracker/index.php?func=detail&aid=1246336&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: html docs frequently missing key words Bug #: 1294420 <http://sourceforge.net/tracker/index.php?func=detail&aid=1294420&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: EdgeListS = has_setS for adjacency_list does not work Bug #: 1352049 <http://sourceforge.net/tracker/index.php?func=detail&aid=1352049&group_id=7…> Assignee: dgregor <http://sourceforge.net/users/dgregor/> Summary: predicates without default constructor fail to compile (2) Bug #: 1353875 <http://sourceforge.net/tracker/index.php?func=detail&aid=1353875&group_id=7…> Assignee: djowel <http://sourceforge.net/users/djowel/> Summary: Miss ' = ParserT()' Bug #: 907299 <http://sourceforge.net/tracker/index.php?func=detail&aid=907299&group_id=75…> Assignee: djowel <http://sourceforge.net/users/djowel/> Summary: spirit insert_key_actor.hpp Bug #: 1059936 <http://sourceforge.net/tracker/index.php?func=detail&aid=1059936&group_id=7…> Assignee: djowel <http://sourceforge.net/users/djowel/> Summary: Another config correction for Sun C++ Bug #: 1220782 <http://sourceforge.net/tracker/index.php?func=detail&aid=1220782&group_id=7…> Assignee: ebf <http://sourceforge.net/users/ebf/> Summary: boost::blank - missing operators Bug #: 1191356 <http://sourceforge.net/tracker/index.php?func=detail&aid=1191356&group_id=7…> Assignee: ebf <http://sourceforge.net/users/ebf/> Summary: [variant] Bug in recursive_wrapper_fwd.hpp Bug #: 1359257 <http://sourceforge.net/tracker/index.php?func=detail&aid=1359257&group_id=7…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: timeconv.inl to_duration() nsec error Bug #: 548104 <http://sourceforge.net/tracker/index.php?func=detail&aid=548104&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: Solaris - once.cpp compile error Bug #: 549162 <http://sourceforge.net/tracker/index.php?func=detail&aid=549162&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: AIX 4.3 SIGSEGV at thread termination Bug #: 551577 <http://sourceforge.net/tracker/index.php?func=detail&aid=551577&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: boost::threads uses msvc only function? Bug #: 568951 <http://sourceforge.net/tracker/index.php?func=detail&aid=568951&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: BCB6 throw EExternelException Bug #: 596149 <http://sourceforge.net/tracker/index.php?func=detail&aid=596149&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: thread_cleanup problems Bug #: 649291 <http://sourceforge.net/tracker/index.php?func=detail&aid=649291&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: Mac implementation of threads is CPU hog Bug #: 885045 <http://sourceforge.net/tracker/index.php?func=detail&aid=885045&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: xtime_cmp: use comparison not subtraction Bug #: 993272 <http://sourceforge.net/tracker/index.php?func=detail&aid=993272&group_id=75…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: condition variables and recursive_mutex Bug #: 1072605 <http://sourceforge.net/tracker/index.php?func=detail&aid=1072605&group_id=7…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: compiler error on Mac implementation of threads Bug #: 1201779 <http://sourceforge.net/tracker/index.php?func=detail&aid=1201779&group_id=7…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: timeconv.inl line 116 copy/paste error Bug #: 1239052 <http://sourceforge.net/tracker/index.php?func=detail&aid=1239052&group_id=7…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: Exception safety in class 'thread' Bug #: 1305885 <http://sourceforge.net/tracker/index.php?func=detail&aid=1305885&group_id=7…> Assignee: glassfordm <http://sourceforge.net/users/glassfordm/> Summary: mistake in documentation of condition Bug #: 1364416 <http://sourceforge.net/tracker/index.php?func=detail&aid=1364416&group_id=7…> Assignee: grafik <http://sourceforge.net/users/grafik/> Summary: boost jam problem with parallel builds Bug #: 1234224 <http://sourceforge.net/tracker/index.php?func=detail&aid=1234224&group_id=7…> Assignee: hubert_holin <http://sourceforge.net/users/hubert_holin/> Summary: Cannot compile octonion_test.cpp because of bug in sinc.hpp Bug #: 751289 <http://sourceforge.net/tracker/index.php?func=detail&aid=751289&group_id=75…> Assignee: jbandela <http://sourceforge.net/users/jbandela/> Summary: Compiler error for tokenizer on Solaris Bug #: 976241 <http://sourceforge.net/tracker/index.php?func=detail&aid=976241&group_id=75…> Assignee: jbandela <http://sourceforge.net/users/jbandela/> Summary: token_iterator::at_end() result is inversed Bug #: 1338326 <http://sourceforge.net/tracker/index.php?func=detail&aid=1338326&group_id=7…> Assignee: jmaurer <http://sourceforge.net/users/jmaurer/> Summary: Diff in state of mersenne_twister gen between GCC3.41 & CW9 Bug #: 1115124 <http://sourceforge.net/tracker/index.php?func=detail&aid=1115124&group_id=7…> Assignee: joerg_walter <http://sourceforge.net/users/joerg_walter/> Summary: bug in ublas/storage.hpp Bug #: 1095697 <http://sourceforge.net/tracker/index.php?func=detail&aid=1095697&group_id=7…> Assignee: joerg_walter <http://sourceforge.net/users/joerg_walter/> Summary: dead links in uBLAS page Bug #: 1169273 <http://sourceforge.net/tracker/index.php?func=detail&aid=1169273&group_id=7…> Assignee: joerg_walter <http://sourceforge.net/users/joerg_walter/> Summary: Documentation not available on web site: Bug #: 1228242 <http://sourceforge.net/tracker/index.php?func=detail&aid=1228242&group_id=7…> Assignee: joerg_walter <http://sourceforge.net/users/joerg_walter/> Summary: uBLAS::subslice doesn't work Bug #: 1292635 <http://sourceforge.net/tracker/index.php?func=detail&aid=1292635&group_id=7…> Assignee: johnmaddock <http://sourceforge.net/users/johnmaddock/> Summary: Adding boost::is_complex to type_traits.hpp Bug #: 1315712 <http://sourceforge.net/tracker/index.php?func=detail&aid=1315712&group_id=7…> Assignee: jsiek <http://sourceforge.net/users/jsiek/> Summary: invalid result for File Dependency Examp Bug #: 551110 <http://sourceforge.net/tracker/index.php?func=detail&aid=551110&group_id=75…> Assignee: jsiek <http://sourceforge.net/users/jsiek/> Summary: Spelling of Edmonds-Karp-Algorithm Bug #: 1226292 <http://sourceforge.net/tracker/index.php?func=detail&aid=1226292&group_id=7…> Assignee: kevlin <http://sourceforge.net/users/kevlin/> Summary: lexical_cast & pure virtual functions & VC 8 STL Bug #: 1358600 <http://sourceforge.net/tracker/index.php?func=detail&aid=1358600&group_id=7…> Assignee: nesotto <http://sourceforge.net/users/nesotto/> Summary: boost.range and 'const char[]'. Bug #: 1272315 <http://sourceforge.net/tracker/index.php?func=detail&aid=1272315&group_id=7…> Assignee: nesotto <http://sourceforge.net/users/nesotto/> Summary: [Boost.Range]boost::const_begin calls non-qualified 'begin' Bug #: 1361686 <http://sourceforge.net/tracker/index.php?func=detail&aid=1361686&group_id=7…> Assignee: rogeeff <http://sourceforge.net/users/rogeeff/> Summary: typo in Boost.Test document Bug #: 629685 <http://sourceforge.net/tracker/index.php?func=detail&aid=629685&group_id=75…> Assignee: rogeeff <http://sourceforge.net/users/rogeeff/> Summary: Don't work multilevel hierarchy of test suites in dll. Bug #: 1076691 <http://sourceforge.net/tracker/index.php?func=detail&aid=1076691&group_id=7…> Assignee: rogeeff <http://sourceforge.net/users/rogeeff/> Summary: header problem in boost::test Bug #: 1365753 <http://sourceforge.net/tracker/index.php?func=detail&aid=1365753&group_id=7…> Assignee: samuel_k <http://sourceforge.net/users/samuel_k/> Summary: format: assert when parsing invalid pattern Bug #: 1326132 <http://sourceforge.net/tracker/index.php?func=detail&aid=1326132&group_id=7…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: ct_gcd_lcm.hpp compilation error Bug #: 558174 <http://sourceforge.net/tracker/index.php?func=detail&aid=558174&group_id=75…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: test_pool_alloc.cpp not compile CW8.1 Bug #: 586779 <http://sourceforge.net/tracker/index.php?func=detail&aid=586779&group_id=75…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: pool::purge_memory() does not reset next_size Bug #: 984124 <http://sourceforge.net/tracker/index.php?func=detail&aid=984124&group_id=75…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: Borland compiler error with Pool, boost::pool_allocator Bug #: 988124 <http://sourceforge.net/tracker/index.php?func=detail&aid=988124&group_id=75…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: perfomance: memory cleanup for pool takes too long Bug #: 995270 <http://sourceforge.net/tracker/index.php?func=detail&aid=995270&group_id=75…> Assignee: shammah <http://sourceforge.net/users/shammah/> Summary: boost::pool_allocator breaks with vector of vectors Bug #: 1179641 <http://sourceforge.net/tracker/index.php?func=detail&aid=1179641&group_id=7…> Assignee: turkanis <http://sourceforge.net/users/turkanis/> Summary: rational operator&lt; can overflow Bug #: 798357 <http://sourceforge.net/tracker/index.php?func=detail&aid=798357&group_id=75…> Assignee: turkanis <http://sourceforge.net/users/turkanis/> Summary: boost::rational documentation typos(?) Bug #: 1043616 <http://sourceforge.net/tracker/index.php?func=detail&aid=1043616&group_id=7…> Assignee: turkanis <http://sourceforge.net/users/turkanis/> Summary: no Boolean conversion for boost::rational Bug #: 1239906 <http://sourceforge.net/tracker/index.php?func=detail&aid=1239906&group_id=7…> Assignee: turkanis <http://sourceforge.net/users/turkanis/> Summary: problem with boost::iostreams when compiled with Visual C++ Bug #: 1365752 <http://sourceforge.net/tracker/index.php?func=detail&aid=1365752&group_id=7…> Assignee: vladimir_prus <http://sourceforge.net/users/vladimir_prus/> Summary: multitoken broken in program_options 1.33 Bug #: 1266877 <http://sourceforge.net/tracker/index.php?func=detail&aid=1266877&group_id=7…> Assignee: vladimir_prus <http://sourceforge.net/users/vladimir_prus/> Summary: format_paragraph in options_description.cpp Bug #: 1365338 <http://sourceforge.net/tracker/index.php?func=detail&aid=1365338&group_id=7…> -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

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Boost regression notification (2005-12-08 [RC_1_33_0])
by Douglas Gregor 08 Dec '05

08 Dec '05

Boost regression test failures ------------------------------ Report time: 2005-12-07T22:37:21Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_33_0/developer/i… 13 failures in 3 libraries: graph (2) serialization (10) wave (1) |graph| layout_test: cw-8_3 vc-7_0 |serialization| test_diamond_binary_archive: cw-9_4 test_diamond_binary_archive_dll: cw-9_4 test_diamond_text_archive: cw-9_4 test_diamond_text_archive_dll: cw-9_4 test_diamond_text_warchive: cw-9_4 test_diamond_text_warchive_dll: cw-9_4 test_diamond_xml_archive: cw-9_4 test_diamond_xml_archive_dll: cw-9_4 test_diamond_xml_warchive: cw-9_4 test_diamond_xml_warchive_dll: cw-9_4 |wave| test_slex_lexer: vc-8_0

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Boost regression notification (2005-12-08 [HEAD])
by Douglas Gregor 08 Dec '05

08 Dec '05

Boost regression test failures ------------------------------ Report time: 2005-12-07T13:00:18Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/issues… 221 failures in 17 libraries: bind (1) concept_check (13) date_time (19) foreach (6) graph (7) io (1) mpl (1) multi_array (6) parameter (1) python (1) serialization (26) smart_ptr (2) spirit (2) tr1 (88) typeof (22) wave (1) xpressive (24) |bind| bind_dm3_test: msvc |concept_check| stl_concept_covering: cw-9_4 cw-9_4 gcc-3.3.6-linux gcc-3.4.4-linux gcc-3_3-darwin gcc-4_0-darwin intel-win32-8_1 intel-win32-9_0 intel-win32-9_0 intel-win32-9_0 msvc vc-7_1 vc-7_1 |date_time| testc_local_adjustor: msvc testclock: msvc testdst_rules: msvc testfiletime_functions: msvc testgreg_duration_operators: msvc testgreg_serialize_dll: cw-9_4 intel-win32-8_1 intel-win32-9_0 vc-7_1 vc-7_1 testiterator: msvc testlocal_adjustor: msvc testmicrosec_time_clock: msvc testparse_time: msvc testtime: msvc testtime_formatters: msvc testtime_period: msvc testwcustom_time_zone: msvc testwposix_time_zone: msvc |foreach| array_byref: cw-9_4 array_byval: cw-9_4 rvalue_const: intel-win32-8_1 intel-win32-9_0 stl_byref: cw-9_4 stl_byval: cw-9_4 |graph| csr_graph_test: cw-9_4 dominator_tree_test: cw-9_4 intel-win32-9_0 vc-7_1 graphviz_test: vc-7_1 vc-7_1 layout_test: intel-win32-9_0 |io| ios_state_unit_test: intel-win32-9_0 |mpl| size_t: gcc-4_0-darwin |multi_array| access: cw-9_4 assign: cw-9_4 assign_to_array: cw-9_4 index_bases: cw-9_4 iterators: cw-9_4 slice: cw-9_4 |parameter| sfinae: msvc |python| stl_iterator: msvc |serialization| test_class_info_load_binary_archive: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_binary_archive_dll: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_text_archive: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_text_archive_dll: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_text_warchive: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_text_warchive_dll: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_xml_archive: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_xml_archive_dll: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_xml_warchive: gcc-3_3-darwin gcc-4_0-darwin test_class_info_load_xml_warchive_dll: gcc-3_3-darwin gcc-4_0-darwin test_const_save_fail1: msvc test_const_save_fail2: msvc test_const_save_fail3: msvc test_map_binary_archive_dll: msvc test_map_text_archive_dll: msvc test_map_text_warchive_dll: msvc |smart_ptr| pointer_to_other_test: msvc shared_ptr_alloc2_test: msvc |spirit| traverse_tests: intel-win32-9_0 traverse_tests_debug: intel-win32-9_0 |tr1| run_complex_overloads: cw-9_4 std_run_complex_overloads: cw-9_4 std_run_random: cw-9_4 std_test_array: cw-9_4 std_test_bind: cw-9_4 std_test_complex: cw-9_4 std_test_function: cw-9_4 std_test_hash: cw-9_4 std_test_mem_fn: cw-9_4 std_test_random: cw-9_4 std_test_regex: cw-9_4 std_test_result_of: cw-9_4 std_test_tr1_include: cw-9_4 std_test_tuple: cw-9_4 std_test_type_traits: cw-9_4 test_array: cw-9_4 test_bind: cw-9_4 test_complex: cw-9_4 test_function: cw-9_4 test_hash: cw-9_4 test_mem_fn: cw-9_4 test_random: cw-9_4 test_reference_wrapper: cw-9_4 test_result_of: cw-9_4 test_shared_ptr: cw-9_4 test_tr1_include: cw-9_4 test_tuple: cw-9_4 tr1_add_const_test: cw-9_4 tr1_add_cv_test: cw-9_4 tr1_add_pointer_test: cw-9_4 tr1_add_reference_test: cw-9_4 tr1_add_volatile_test: cw-9_4 tr1_aligned_storage_test: cw-9_4 tr1_alignment_of_test: cw-9_4 tr1_extent_test: cw-9_4 tr1_has_nothrow_assign_test: cw-9_4 tr1_has_nothrow_constr_test: cw-9_4 tr1_has_nothrow_copy_test: cw-9_4 tr1_has_tr1_ref_wrap_fail: cw-9_4 tr1_has_tr1_shared_ptr_fail: cw-9_4 tr1_has_tr1_tuple_fail: cw-9_4 tr1_has_trivial_assign_test: cw-9_4 tr1_has_trivial_constr_test: cw-9_4 tr1_has_trivial_copy_test: cw-9_4 tr1_has_trivial_destructor_test: cw-9_4 tr1_has_virtual_destructor_test: cw-9_4 tr1_is_arithmetic_test: cw-9_4 tr1_is_array_test: cw-9_4 tr1_is_base_of_test: cw-9_4 tr1_is_class_test: cw-9_4 tr1_is_compound_test: cw-9_4 tr1_is_const_test: cw-9_4 tr1_is_convertible_test: cw-9_4 tr1_is_empty_test: cw-9_4 tr1_is_enum_test: cw-9_4 tr1_is_floating_point_test: cw-9_4 tr1_is_function_test: cw-9_4 tr1_is_fundamental_test: cw-9_4 tr1_is_integral_test: cw-9_4 tr1_is_member_func_test: cw-9_4 tr1_is_member_obj_test: cw-9_4 tr1_is_member_pointer_test: cw-9_4 tr1_is_object_test: cw-9_4 tr1_is_pod_test: cw-9_4 tr1_is_pointer_test: cw-9_4 tr1_is_polymorphic_test: cw-9_4 tr1_is_reference_test: cw-9_4 tr1_is_same_test: cw-9_4 tr1_is_scalar_test: cw-9_4 tr1_is_signed_test: cw-9_4 tr1_is_union_test: cw-9_4 tr1_is_unsigned_test: cw-9_4 tr1_is_void_test: cw-9_4 tr1_is_volatile_test: cw-9_4 tr1_rank_test: cw-9_4 tr1_remove_all_extents_test: cw-9_4 tr1_remove_const_test: cw-9_4 tr1_remove_cv_test: cw-9_4 tr1_remove_extent_test: cw-9_4 tr1_remove_pointer_test: cw-9_4 tr1_remove_reference_test: cw-9_4 tr1_remove_volatile_test: cw-9_4 tr1_tricky_abstract_type_test: cw-9_4 tr1_tricky_add_pointer_test: cw-9_4 tr1_tricky_function_type_test: cw-9_4 tr1_tricky_incomplete_type_test: cw-9_4 tr1_tricky_is_enum_test: cw-9_4 tr1_tricky_partial_spec_test: cw-9_4 |typeof| data_member_native: cw-9_4 function_native: cw-9_4 msvc function_ptr_native: cw-9_4 function_ref_native: cw-9_4 lvalue_native: cw-9_4 msvc member_function_native: cw-9_4 modifiers_emulation: cw-9_4 modifiers_native: cw-9_4 noncopyable_native: cw-9_4 std_emulation: cw-9_4 cw-9_4 std_native: cw-9_4 template_dependent_native: cw-9_4 template_enum_native: cw-9_4 template_int_native: cw-9_4 template_multiword_native: cw-9_4 template_tpl_native: cw-9_4 msvc template_type_native: cw-9_4 type_native: cw-9_4 |wave| testwave_dll: cw-9_4 |xpressive| misc1: cw-9_4 test1: cw-9_4 test1u: cw-9_4 test2: cw-9_4 test2u: cw-9_4 test3: cw-9_4 test3u: cw-9_4 test4: cw-9_4 test4u: cw-9_4 test5: cw-9_4 test5u: cw-9_4 test6: cw-9_4 test6u: cw-9_4 test7: cw-9_4 test7u: cw-9_4 test8: cw-9_4 test8u: cw-9_4 test9: cw-9_4 test9u: cw-9_4 test_cycles: cw-9_4 test_dynamic: cw-9_4 test_non_char: cw-9_4 test_regex_primitives: cw-9_4 test_static: cw-9_4

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Re: [boost] [boost::throw_exception] and platforms where it don't throw
by Martin Bonner 08 Dec '05

08 Dec '05

----Original Message---- From: Peter Dimov [mailto:pdimov@mmltd.net] Sent: 08 December 2005 15:40 To: boost(a)lists.boost.org Subject: Re: [boost] [boost::throw_exception] and platforms where it don'tthrow > And of course in a situation where throw_exception is used to throw > bad_alloc, an assertion makes even less sense, because there are no > "logic errors" involved, and presenting the effects of a failed > assertion to the end user would serve little purpose; the program > could do nothing to defend itself from the out of memory situation. But if a library is being used in an exception free environment, maybe presenting an assertion failure to the user is as good as you can do. -- Martin Bonner Martin.Bonner(a)Pitechnology.com Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ, ENGLAND Tel: +44 (0)1223 441434

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[interval] in_zero
by David Abrahams 08 Dec '05

08 Dec '05

Why isn't this function called zero_in? if (zero_in(x)) whatever... seems a lot more natural than if (in_zero(x)) whatever... After all, the question is whether zero is in x, not whether x is in zero! -- Dave Abrahams Boost Consulting www.boost-consulting.com

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