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why doesn't scoped_ptr have a custom deleter?
by Pablo Aguilar 04 Jan '05

04 Jan '05

Hi, I'm currently playing around with Apache's Xerces XML library, and found myself needing to ->release some pointers. shared_ptr + mem_fn works great: shared_ptr<DOMBuilder> db( impl->createBuilder() , mem_fn(&DOMBuilder::release) ); But for the objects I'm using, I don't need a shared_ptr, but just a scoped_ptr. So I'm wondering about the rationale behind not giving scoped_ptr a custom deleter? Is it that shared_ptr's overhead is negligible (when not being shared I mean)? thanks

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Boost.Serialization problems in VC 7.1
by James Trotter 04 Jan '05

04 Jan '05

Hi, I'm trying to get the boost.serialization library to work, but I'm having some problems. I'm running VC 7.1, and I've tried both boost 1.32, and the latest CVS. I manage to compile and install the library, but when I try to compile and run the demo application that comes with it, I get a runtime error. It's compiling and linking perfectly, but at runtime I get a message box saying: "Unhandled exception at 0x7c59bbf3 in Test.exe: Microsoft C++ exception: __non_rtti_object @ 0x0012f8b0." … [View More]

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thread::thread() in Windows
by Yuval Ronen 04 Jan '05

04 Jan '05

Hi. I believe that there is a bug in thread::thread() under Windows. The code uses GetCurrentThread() WinAPI function, but this is not enough. If you'll try to create such a thread object, and pass its reference to another thread which will join it - something like struct SomeThread { thread *m_thread; SomeThread(thread *a_thread) : m_thread(a_thread) { } void operator()() { do_some_work() m_thread->join(); delete … [View More]

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[MPL] map question
by David Greene 04 Jan '05

04 Jan '05

I'm not understanding something about the interaction of map with the algorithms. I've got a map whose value_type is another map. I'd like to iterate through the map entries and add all the "sub-map" entries to the "primary" map. I wrote a little testcase, attached below. When I compile it with g++ 3.3.3, I get this: boost-1_32/boost/mpl/pair.hpp: In instantiation of `boost::mpl::second<mpl_::_2>': fold2.cc:23: instantiated from `boost::mpl::value_type_impl<boost::mpl::aux::… [View More]map_tag>::apply<map_types, mpl_::_2>' fold2.cc:23: instantiated from `boost::mpl::value_type<map_types, mpl_::_2>' fold2.cc:23: instantiated from here boost-1_32/boost/mpl/pair.hpp:56: error: no type named `second' in `struct mpl_::_2' fold2.cc:23: error: `types' is not a member of type ` boost::mpl::value_type<map_types, mpl_::_2>' fold2.cc:24: error: template argument 1 is invalid fold2.cc:24: error: ISO C++ forbids declaration of `type name' with no type boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp: In instantiation of `boost::mpl::apply_wrap2<int, map_types, boost::mpl::pair<key1, entry> >': boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp:49: instantiated from `boost::mpl::apply2<int, map_types, boost::mpl::pair<key1, entry> >' boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp:49: instantiated from `boost::mpl::aux::fold_impl<1, boost::mpl::m_iter<map_types, 2, 3>, boost::mpl::m_iter<map_types, 3, 3>, map_types, int>' boost-1_32/boost/mpl/fold.hpp:39: instantiated from `boost::mpl::fold<map_types, map_types, int>' fold2.cc:24: instantiated from here boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp:49: error: ` int' is not a class, struct, or union type boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp: In instantiation of `boost::mpl::aux::fold_impl<1, boost::mpl::m_iter<map_types, 2, 3>, boost::mpl::m_iter<map_types, 3, 3>, map_types, int>': boost-1_32/boost/mpl/fold.hpp:39: instantiated from `boost::mpl::fold<map_types, map_types, int>' fold2.cc:24: instantiated from here boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp:49: error: no type named `type' in `struct boost::mpl::apply2<int, map_types, boost::mpl::pair<key1, entry> >' boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp: In instantiation of `boost::mpl::aux::fold_impl<1, boost::mpl::m_iter<map_types, 2, 3>, boost::mpl::m_iter<map_types, 3, 3>, map_types, int>': boost-1_32/boost/mpl/fold.hpp:39: instantiated from `boost::mpl::fold<map_types, map_types, int>' fold2.cc:24: instantiated from here boost-1_32/boost/mpl/aux_/preprocessed/gcc/fold_impl.hpp:53: error: no type named `type' in `struct boost::mpl::apply2<int, map_types, boost::mpl::pair<key1, entry> >' boost-1_32/boost/mpl/fold.hpp: In instantiation of `boost::mpl::fold<map_types, map_types, int>': fold2.cc:24: instantiated from here boost-1_32/boost/mpl/fold.hpp:39: error: no type named `state' in `struct boost::mpl::aux::fold_impl<1, boost::mpl::m_iter<map_types, 2, 3>, boost::mpl::m_iter<map_types, 3, 3>, map_types, int>' fold2.cc:24: error: syntax error before `;' token fold2.cc:26: error: syntax error before `::' token An EDG-based compiler gives much the same error. What am I doing wrong? Much thanks for the help! -Dave #include <boost/mpl/fold.hpp> #include <boost/mpl/placeholders.hpp> #include <boost/mpl/copy.hpp> #include <boost/mpl/map.hpp> #include <boost/mpl/value_type.hpp> #include <boost/mpl/inserter.hpp> #include <boost/mpl/insert.hpp> #include <boost/mpl/pair.hpp> using namespace boost; using namespace boost::mpl; struct key1 {}; struct key2 {}; struct entry { typedef map<pair<key2, int> > types; }; typedef map<pair<key1, entry> > map_types; typedef fold<map_types, map_types, copy<value_type<map_types, _2>::types, inserter<_1, insert<_1, _2> > > >::type result; result::blah; // Get a printout [View Less]

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Serialization demo.
by Ken Perry 03 Jan '05

03 Jan '05

has anyone been able to get demo_xml.cpp to compile using mingw in either cygwin, msys, or just at the regular command line in XP pro? If you ahve what is the command line you used to compile it. I haven't been able to find a Jamfile or a Makefile for them so I have been trying to figure out the correct libraries to link with it and am having no luck. Ken

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[Regex] How to match the "End of buffer"/"End of string"?
by jordi 03 Jan '05

03 Jan '05

Hi, I'm new in regex and this is my first post, so maybe the solution is obvious but I couldn't find it in google... I need to parse the multiline output of a command, every line ends with a \n except the last one, which actually it ends with the end of buffe ("\0" character). The output I need to parse is something like: "text1 this is a multiple-word text\n text2 another text" (the second line does not have a newline) As a result I want only two sub-expression in a line using a … [View More]

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Problems with regex lib and Codewarrior
by Steve Folly 02 Jan '05

02 Jan '05

Hi, I'm having a problem trying to compile the regex library for Codewarrior 9.3 on the Mac, for an x86 target. There wasn't a Codewarrior project so I created my own and included the source code under libs/regex/src, I'm creating a static library. 1.31.0 and 1.32.0 have the same problem: The problem is that for a Codewarrior x86 target (running on a Mac), boost configures it's BOOST_USE_FACET macro to be the standard conforming std::use_facet. Codewarrior's use_facet takes two … [View More]

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thread (1.32.0, vc 7.1) memory & resource leak
by Sergey Skorniakov 02 Jan '05

02 Jan '05

Hello, All! I have found that threadmon_mutex, created at line 29 in tss_hooks.cpp never destroyed. Is this the intention? Why it can not be deleted during DLL_PROCESS_DETACH? With best regards, Sergey.

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iterator to std::list keeping boost::shared_ptr
by Ernst Murnleitner 02 Jan '05

02 Jan '05

Hello, I use boost::shared pointers and store them in a std::list. Now, I have some iterators which are stored in other classes. If items are inserted or deleted, the iterators become invalid. Is there a mechanism in the boost::libraries in order to update these iterators (e.g. iterators, containers)? Greetings Ernst -- ############################################### Against software patents: http://petition.eurolinux.org ###############################################

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Boost build error in Cygwin
by Welson Sun 01 Jan '05

01 Jan '05

I downloaded boost_1_32_0.tar.bz2 and tried to build under Cgywin, here is the procedure: 1. Download latest Cygwin setup.exe (Version: 2.427) 2. Run setup.exe and download latest Cygwin distro from http://cygwin.get-software.com 3. Run setup.exe again to install the Cygwin 4. $ bjam -sTOOLS=gcc -sPYTHON_ROOT=/usr -sPYTHON_VERSION=2.4 --builddir=../boost_build install >& build.log Build result: ------------- ...found 11563 targets... ...updating 4329 targets... .. .. ...failed … [View More]updating 16 targets... ...skipped 20 targets... ...updated 4293 targets... FAILURES: --------- ...failed gcc-Archive-action ../boost_build/bin/boost/libs/serialization/build/libboost_wserialization.a/ gcc/debug/libboost_wserialization-gcc-d-1_32.a... ...failed gcc-Archive-action ../boost_build/bin/boost/libs/serialization/build/libboost_wserialization.a/ gcc/debug/threading-multi/libboost_wserialization-gcc-mt-d-1_32.a... ...failed gcc-Archive-action ../boost_build/bin/boost/libs/serialization/build/libboost_wserialization.a/ gcc/release/libboost_wserialization-gcc-1_32.a... ...failed gcc-Archive-action ../boost_build/bin/boost/libs/serialization/build/libboost_wserialization.a/ gcc/release/threading-multi/libboost_wserialization-gcc-mt-1_32.a... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_prg_exec_monitor.dll/gcc/d ebug/libboost_prg_exec_monitor-gcc-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_prg_exec_monitor.dll/gcc/d ebug/threading-multi/libboost_prg_exec_monitor-gcc-mt-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_prg_exec_monitor.dll/gcc/r elease/libboost_prg_exec_monitor-gcc-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_prg_exec_monitor.dll/gcc/r elease/threading-multi/libboost_prg_exec_monitor-gcc-mt-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_test_exec_monitor.dll/gcc/ debug/libboost_test_exec_monitor-gcc-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_test_exec_monitor.dll/gcc/ debug/threading-multi/libboost_test_exec_monitor-gcc-mt-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_test_exec_monitor.dll/gcc/ release/libboost_test_exec_monitor-gcc-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_test_exec_monitor.dll/gcc/ release/threading-multi/libboost_test_exec_monitor-gcc-mt-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_unit_test_framework.dll/gc c/debug/libboost_unit_test_framework-gcc-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_unit_test_framework.dll/gc c/debug/threading-multi/libboost_unit_test_framework-gcc-mt-d-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_unit_test_framework.dll/gc c/release/libboost_unit_test_framework-gcc-1_32.dll... ...failed Chmod1 ../boost_build/bin/boost/libs/test/build/libboost_unit_test_framework.dll/gc c/release/threading-multi/libboost_unit_test_framework-gcc-mt-1_32.dll... ...failed updating 16 targets... SKIPPED: -------- ...skipped <@boost!lib>libboost_wserialization-gcc-d-1_32.a for lack of <@boost!libs!serialization!build/libboost_wserialization.a/gcc/debug>libboos t_wserialization-gcc-d-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc-mt-d-1_32.a for lack of <@boost!libs!serialization!build/libboost_wserialization.a/gcc/debug/threadi ng-multi>libboost_wserialization-gcc-mt-d-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc-1_32.a for lack of <@boost!libs!serialization!build/libboost_wserialization.a/gcc/release>libbo ost_wserialization-gcc-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc-mt-1_32.a for lack of <@boost!libs!serialization!build/libboost_wserialization.a/gcc/release/threa ding-multi>libboost_wserialization-gcc-mt-1_32.a... ...skipped <@boost!lib>libboost_prg_exec_monitor-gcc-d-1_32.dll for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dll/gcc/debug>libboost_prg _exec_monitor-gcc-d-1_32.dll... ...skipped <@boost!lib>libboost_prg_exec_monitor-gcc-mt-d-1_32.dll for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dll/gcc/debug/threading-mu lti>libboost_prg_exec_monitor-gcc-mt-d-1_32.dll... ...skipped <@boost!lib>libboost_prg_exec_monitor-gcc-1_32.dll for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dll/gcc/release>libboost_p rg_exec_monitor-gcc-1_32.dll... ...skipped <@boost!lib>libboost_prg_exec_monitor-gcc-mt-1_32.dll for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dll/gcc/release/threading- multi>libboost_prg_exec_monitor-gcc-mt-1_32.dll... ...skipped <@boost!lib>libboost_test_exec_monitor-gcc-d-1_32.dll for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dll/gcc/debug>libboost_te st_exec_monitor-gcc-d-1_32.dll... ...skipped <@boost!lib>libboost_test_exec_monitor-gcc-mt-d-1_32.dll for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dll/gcc/debug/threading-m ulti>libboost_test_exec_monitor-gcc-mt-d-1_32.dll... ...skipped <@boost!lib>libboost_test_exec_monitor-gcc-1_32.dll for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dll/gcc/release>libboost_ test_exec_monitor-gcc-1_32.dll... ...skipped <@boost!lib>libboost_test_exec_monitor-gcc-mt-1_32.dll for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dll/gcc/release/threading -multi>libboost_test_exec_monitor-gcc-mt-1_32.dll... ...skipped <@boost!lib>libboost_unit_test_framework-gcc-d-1_32.dll for lack of <@boost!libs!test!build/libboost_unit_test_framework.dll/gcc/debug>libboost_ unit_test_framework-gcc-d-1_32.dll... ...skipped <@boost!lib>libboost_unit_test_framework-gcc-mt-d-1_32.dll for lack of <@boost!libs!test!build/libboost_unit_test_framework.dll/gcc/debug/threading -multi>libboost_unit_test_framework-gcc-mt-d-1_32.dll... ...skipped <@boost!lib>libboost_unit_test_framework-gcc-1_32.dll for lack of <@boost!libs!test!build/libboost_unit_test_framework.dll/gcc/release>libboos t_unit_test_framework-gcc-1_32.dll... ...skipped <@boost!lib>libboost_unit_test_framework-gcc-mt-1_32.dll for lack of <@boost!libs!test!build/libboost_unit_test_framework.dll/gcc/release/threadi ng-multi>libboost_unit_test_framework-gcc-mt-1_32.dll... ...skipped <@boost!lib>libboost_wserialization-gcc-d.a for lack of <@boost!lib>libboost_wserialization-gcc-d-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc-mt-d.a for lack of <@boost!lib>libboost_wserialization-gcc-mt-d-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc.a for lack of <@boost!lib>libboost_wserialization-gcc-1_32.a... ...skipped <@boost!lib>libboost_wserialization-gcc-mt.a for lack of <@boost!lib>libboost_wserialization-gcc-mt-1_32.a... ...skipped 20 targets... Looks like the failures is not important, but I am just wondering what is the cause of these problems. Welson Sun [View Less]

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