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

[Boost-bugs] [ boost-Support Requests-1519824 ] regex - perl syntax affects what gets matched
by SourceForge.net 10 Jul '06

10 Jul '06

Support Requests item #1519824, was opened at 2006-07-10 01:48 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1519824&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: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: regex - perl syntax affects what gets matched Initial Comment: Hi, I'm trying to move from 1.32 to 1.33 (I need unicode), and it seems that 'what gets matched' have changed: it no longer matches the left-most longest match, but the first BFS of the expression. Ok. It is documented. But how do I pass that? The only way I found around it is using regex::no_perl_ex, but: 1. The change of 'what gets matched' is not documented (or I didn't find it), and therefore I'm not sure it does what I think it does. 2. There is no 'lookahead' anymore, and I need it. Is there a way to tell a perl regex to match the left- most longest? or is there another workaround? Thanks, Moddy. moddyt(a)itemfield.com ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1519824&group_… ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

1 0

Re: [boost] Exception lib?
by Sohail Somani 09 Jul '06

09 Jul '06

> -----Original Message----- > From: boost-bounces(a)lists.boost.org > [mailto:boost-bounces@lists.boost.org] On Behalf Of Emil Dotchevski > > Not to mention that the client can and will do it wrong. > > I don't want to make a huge deal out of this because > ultimately I don't mind > hiding the dynamic_cast in a function get_exception_info. But > I am arguing > that this abstraction is not necessary because the only > implementation > possible is through a dynamic_cast (at least I can't think of another > possibility). Well for some people the only way to fix a const correctness related error is to remove the const. I can imagine people doing all sorts of (wrong)casts. IMHO, I think the api should constrain that freedom seeing as there *is* only one right way to do it! Sohail

6 10

Interest in a clone_ptr class?
by Kevin Spinar 09 Jul '06

09 Jul '06

Is there interest in a clone_ptr class to supplement the current smart_ptr library? A clone_ptr is a smart pointer which performs a deep copy of the pointed-to object whenever the clone_ptr is copied. Also, the polymorphic type is maintained, eg: clone_ptr<Base> p(new Derived); clone_ptr<Base> p2; p2 = p; /* p and p2 now point to different Derived objects */ I am aware that there is a policy_ptr library being constructed which will probably provide the same functionality as this clone_ptr; however, when is this policy_ptr library scheduled to be completed? With cvs.sourceforge.netcurrently appearing to be down I've been unable to find accurate information on the status of this library, but with the complexity involved in creating such a versatile smart pointer, I imagine policy_ptr will still be under construction for some time; whereas a clone_ptr class could be written rather quickly, considering the simplicity of it and using the existing smart_ptr library as a guide. Kevin Spinar spinarkm [at] uwec [dot] edu

5 26

Fwd: [Boost-users] [format][patch][1.33.1][SunPro11] missing static_cast from void* to char*
by Marc Mutz 09 Jul '06

09 Jul '06

Hi, This patch is not in 1.34-rc1. What's the preferred way to submit those things? Thanks, Marc -- Marc Mutz -- marc(a)klaralvdalens-datakonsult.se, mutz(a)kde.org Klarälvdalens Datakonsult AB, Platform-independent software solutions

1 0

[variant/mpl] increase in BOOST_MPL_LIMIT_LIST_SIZE not affecting #types a variant can hold
by Marc Mutz 09 Jul '06

09 Jul '06

Hi, Test case and compiler output (gcc 4.0.x/Linux) attached. Would be nice if someone with karma could add this (or something similar) to the regression tests for variant. Thanks, Marc -- Marc Mutz -- marc(a)klaralvdalens-datakonsult.se, mutz(a)kde.org Klarälvdalens Datakonsult AB, Platform-independent software solutions

1 1

Exception lib?
by Emil Dotchevski 09 Jul '06

09 Jul '06

Hello, After the promising initial interest in the Exception lib I wrote, I ported the source code to Boost, and posted a link to the documentation. But so far there has not been even a single reply to my post :| I am not quite sure how to inerpret this... Is it "go ahead, we'll discuss the details during the formal review process"? Or is it complete lack of interest for adding such a library to Boost? I'm even more puzzled because my initial post did get a bunch of responses, without even having posted source code or documentation! Anyway... Here is the link to the documentation again: http://www.revergestudios.com/exception/exception.htm If you click "download", you'll get the source code, as well as an example and a test suite, complete with Boost Build jamfiles. Thanks, Emil

11 39

Thanks Bjam!
by Andy Little 08 Jul '06

08 Jul '06

Whenever I invoke bjam I get this first: warning: Python location is not configured warning: the Boost.Python library won't be built 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). Thanks Bjam. You know what? I really don't care! ;-) regards Andy Little

13 26

building boost on i386 OSX
by Oliver Gräser 08 Jul '06

08 Jul '06

Hello, I'm trying to build boost on my Macbook, which runs OSX 10.4.7 on intel core duo with 2GB of ram. I downloaded boost_1_33_1.tar.gz, untared the file, ran configure, sudo make, sudo make install. Apparently, this installs some 1k + libraries, but not all - 6 libraries are not installed. If I re-run configure and make, it tries to update only these libs, but failes again. I attach the full output, however, the failure seems to originate from some undefined symbols (what ever a symbol is...) ld: Undefined symbols: __Z20init_unit_test_suiteiPPc /usr/bin/libtool: internal link edit command failed All these symbols are called whatsoeverPPc, so I think it might be caused by my intel CPU. Is there any workaround for this? I found the same problem posted on another mailing list, but with no replies so far. Can anyone help? Thanks a lot Oliver ---------------------terminal output----------------------------------------- ./tools/build/jam_src/bin.macosxx86/bjam -sPYTHON_ROOT=/System/ Library/Frameworks/Python.framework/Versions/2.3 -sPYTHON_VERSION=2.3 --prefix=/usr/local --exec-prefix=/usr/local --libdir=/usr/local/lib --includedir=/usr/local/include -sTOOLS=darwin install 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 13486 targets... ...updating 12 targets... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_prg_exec_monitor-d-1_33_1.dylib ld: Undefined symbols: __Z8cpp_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_prg_exec_monitor-d-1_33_1.lo" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ execution_monitor.o" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ cpp_main.o" \ && \ c++ -g -o "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_prg_exec_monitor-d-1_33_1.dylib" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_prg_exec_monitor-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_prg_exec_monitor- d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/ darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_prg_exec_monitor-d-1_33_1.dylib... ...skipped <@boost!lib>libboost_prg_exec_monitor-d-1_33_1.dylib for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dylib/ darwin/debug/shared-linkable-true>libboost_prg_exec_monitor- d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_prg_exec_monitor-1_33_1.dylib ld: Undefined symbols: __Z8cpp_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_prg_exec_monitor-1_33_1.lo" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ execution_monitor.o" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ cpp_main.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_prg_exec_monitor-1_33_1.dylib" "bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_prg_exec_monitor-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_prg_exec_monitor-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/ darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_prg_exec_monitor-1_33_1.dylib... ...skipped <@boost!lib>libboost_prg_exec_monitor-1_33_1.dylib for lack of <@boost!libs!test!build/libboost_prg_exec_monitor.dylib/ darwin/release/shared-linkable- true>libboost_prg_exec_monitor-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_test_exec_monitor-d-1_33_1.dylib ld: Undefined symbols: __Z9test_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_test_exec_monitor-d-1_33_1.lo" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ compiler_log_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ execution_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ framework.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ plain_report_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ progress_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ results_collector.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ results_reporter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ test_main.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ test_tools.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ unit_test_log.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ unit_test_main.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ unit_test_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ unit_test_parameters.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ unit_test_suite.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ xml_log_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ xml_report_formatter.o" \ && \ c++ -g -o "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_test_exec_monitor-d-1_33_1.dylib" "bin/boost/libs/test/ build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable- true/libboost_test_exec_monitor-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_test_exec_monitor- d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_test_exec_monitor-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/ libboost_test_exec_monitor-d-1_33_1.dylib... ...skipped <@boost!lib>libboost_test_exec_monitor-d-1_33_1.dylib for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dylib/ darwin/debug/shared-linkable-true>libboost_test_exec_monitor- d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.dylib ld: Undefined symbols: __Z9test_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.lo" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ compiler_log_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ execution_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ framework.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ plain_report_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ progress_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ results_collector.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ results_reporter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ test_main.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ test_tools.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ unit_test_log.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ unit_test_main.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ unit_test_monitor.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ unit_test_parameters.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ unit_test_suite.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ xml_log_formatter.o" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ xml_report_formatter.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.dylib" "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_test_exec_monitor-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/ libboost_test_exec_monitor-1_33_1.dylib... ...skipped <@boost!lib>libboost_test_exec_monitor-1_33_1.dylib for lack of <@boost!libs!test!build/libboost_test_exec_monitor.dylib/ darwin/release/shared-linkable- true>libboost_test_exec_monitor-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ libboost_unit_test_framework-d-1_33_1.dylib ld: Undefined symbols: __Z20init_unit_test_suiteiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ libboost_unit_test_framework-d-1_33_1.lo" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ compiler_log_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ execution_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ framework.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ plain_report_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ progress_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ results_collector.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ results_reporter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ test_tools.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ unit_test_log.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ unit_test_main.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ unit_test_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ unit_test_parameters.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ unit_test_suite.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ xml_log_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ xml_report_formatter.o" \ && \ c++ -g -o "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ libboost_unit_test_framework-d-1_33_1.dylib" "bin/boost/libs/test/ build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable- true/libboost_unit_test_framework-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_unit_test_framework- d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ libboost_unit_test_framework-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/ libboost_unit_test_framework-d-1_33_1.dylib... ...skipped <@boost!lib>libboost_unit_test_framework-d-1_33_1.dylib for lack of <@boost!libs!test!build/ libboost_unit_test_framework.dylib/darwin/debug/shared-linkable- true>libboost_unit_test_framework-d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/libboost_unit_test_framework-1_33_1.dylib ld: Undefined symbols: __Z20init_unit_test_suiteiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/libboost_unit_test_framework-1_33_1.lo" "bin/boost/libs/test/ build/libboost_unit_test_framework.dylib/darwin/release/shared- linkable-true/compiler_log_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/execution_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/framework.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/plain_report_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/progress_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/results_collector.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/results_reporter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/test_tools.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/unit_test_log.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/unit_test_main.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/unit_test_monitor.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/unit_test_parameters.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/unit_test_suite.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/xml_log_formatter.o" "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/xml_report_formatter.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/libboost_unit_test_framework-1_33_1.dylib" "bin/boost/libs/test/ build/libboost_unit_test_framework.dylib/darwin/release/shared- linkable-true/libboost_unit_test_framework-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_unit_test_framework-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/libboost_unit_test_framework-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/ libboost_unit_test_framework.dylib/darwin/release/shared-linkable- true/libboost_unit_test_framework-1_33_1.dylib... ...skipped <@boost!lib>libboost_unit_test_framework-1_33_1.dylib for lack of <@boost!libs!test!build/libboost_unit_test_framework.dylib/ darwin/release/shared-linkable- true>libboost_unit_test_framework-1_33_1.dylib... ...failed updating 6 targets... ...skipped 6 targets... Not all Boost libraries built properly. Oliver Gräser Physics Department, University of Konstanz Soft Condensed Matter Theory Group Universitätsstrasse 10 / M671 D-78457 Konstanz phone: +49 7531 882550 mailto:oliver.graeser@uni-konstanz.de

2 4

Convert function pointer type to function type
by Peter Soetens 08 Jul '06

08 Jul '06

Hi, I'm desperately seeking for doing this conversion using the boost libraries. User code often provides a function pointer, while library code often works with function types. For example (function_conversion does the 'magic' here): int foo(int); template<class T, class R = typename function_conversion<T>::type > boost::function<R> function_wrapper(T t) { return boost::function<R>(t); } Such that the user can write: function_wrapper( &foo )(1); Thus no longer needs to specify the int(int) function type to boost::function. Is it possible to construct such a 'function_conversion' type ? Any answer is greatly appreciated, Peter -- Peter Soetens -- FMTC -- <http://www.fmtc.be>

4 6

Shmem shared_ptr issue with gcc 3.3.x
by Ryan, Paul L. 07 Jul '06

07 Jul '06

Ion and boost list, I've been working with the shmem version of shared_ptrs and have come accross and interesting issue. When using the library on a 3.4.x gcc compiler I have on issues however when compiling with a gcc 3.3.x compiler the #error Unrecongnized threading platform gets thrown from /boost/shmem/smart_ptr/sp_counted_base.hpp. It also apears that this compilation is successful when using standard boost shared_ptrs instead of the ones included with boost. Any assitance with this issue would be greatly appreciated. Paul Ryan SAIC - Tactical Systems

2 1

Comments on Value Semantics vs. OOP et. al.
by Sean Parent 07 Jul '06

07 Jul '06

A couple of passing comments (okay - it turned into a lecture, I've been doing to much public speaking lately...) Generic programming is the processes of defining algorithms in terms of semantic requirements on types and operations with the goal of achieving maximum efficiency _and_ the highest level of abstraction. I have a presentation with the following table relating generic programming to abstract algebra. Generic Programming Mathematics ____________________________________________________ Semantic Requirement Axiom Concept Algebraic Structure Model (types and operations) Model Algorithms Theorems Regular Function Function Refined Concept - a Concept defined by adding requirements to an existing concept. monoid: semigroup with an identity element BidirectionalIterator: ForwardIterator with constant complexity decrement Refined Algorithm - an algorithm performing the same function as another but with lower complexity or space requirements given a refined concept. One of my favorite quotes from Alex is "Software is defined on algebraic structures." We don't make the semantic requirements up - we discover them in the algorithms we write on the machine model we're given. I like to bash on OOPs as much as the next Generic guy - but the fact is that the same Concepts _must_ be reflected in OOP or the algorithms _can't_ work. Generic programming is as much about understanding how software works as how to write software. The most common point of contention I hear is that the current practice of Generic programming ignores "move" as a semantic requirement (we speak in terms of assignment which is often too strong) where as OOP (as currently practiced with heavy use of heap allocated objects) gets "move" for free (as a side effect of an implementation detail to get polymorphism) - hence OOP programmers don't see the strong need for copy and assignment. Nearly all of the STL algorithms could be recast in terms of move and would be more efficient. We can do a pretty good job of an efficient move with swap() - but _really_ swap should be defined in terms of move instead of being a primitive. An interesting point is that move() is much more necessary with the current style of OOP because of the need to use factory functions instead of constructors for object creation - so us Generic guys would rather just create the object in place. The requirement of polymorphism comes from the desire to perform algorithms on heterogeneous collections (different types modeling the same Concept(s)). Since a model is a collection of types and operations, imposing the requirement of polymorphism through inheritance on closed classes is unnecessarily intrusive and limiting. Inheritance becomes a significant barrier to code reuse. The need for heap allocations stems from the fact that heterogeneous types will be of different sizes - dealing with these pointers (and the significant ensuing issues) is purely a side effect of that implementation detail. Non-mutable values have the advantage that pointers to a non-mutable value have the same semantics (practically) as just a const value (hence FP languages have value semantics even though they're typically implemented with references). The difference with pointers only appear with multiple write access; which in practice is relatively rare, even by accident in systems with rampant use of ref counted pointers. Trying to eliminate all mutating operations is foolhardy. That's not just my opinion, John Backus told me he always knew that mutating operations were necessary, he just didn't know how to deal with them systematically - he is impressed by Alex's work in this area. The difference between having operator=() mean "move" and operator=() mean "assign" is purely one of syntax - not semantics. It is desirable to settle on a single syntax for the Regular operations (copy, assign, move, equality comparison) and that implies the use of copy_ctor, operator=(), swap (until we have a good move), and operator==() for consistency with built in types (including the pointers used to refer to the OOPs objects). It is more important to define algorithms in terms of concepts then to debate the syntactic issues. Algorithms are our theorems. Seek to _understand_ what is going on with OOPs instead of simply slamming it. The fact is, programming with runtime polymorphism using the current Generic programming style is cumbersome and often requires significant language abuse to achieve the same results that can be had with simple inheritance. Of course, thanks to Boost much of that abuse comes pre-packaged and ready to use. -- Sean Parent Sr. Engineering Manager Adobe Software Technology Lab sparent(a)adobe.com

1 0

tr1/test_bind_tricky patch
by Peter Dimov 07 Jul '06

07 Jul '06

I just applied the following patch to test_bind_tricky.cpp; since boost::bind's placeholders are sometimes inline functions, they can't be passed to const T&. It might be better to have something that at least has a chance to pass. Index: libs/tr1/test/test_bind_tricky.cpp ===================================================== RCS file: /cvsroot/boost/boost/libs/tr1/test/test_bind_tricky.cpp,v retrieving revision 1.2 retrieving revision 1.3 diff -u -r1.2 -r1.3 --- libs/tr1/test/test_bind_tricky.cpp 12 Nov 2005 17:34:36 -0000 1.2 +++ libs/tr1/test/test_bind_tricky.cpp 7 Jul 2006 19:25:00 -0000 1.3 @@ -13,12 +13,12 @@ #include "verify_return.hpp" template <class T> -void check_placeholder(const T&) +void check_placeholder( T ) { T t; T t2(t); (void)t2; - BOOST_STATIC_ASSERT(::std::tr1::is_placeholder<T>::value); + BOOST_STATIC_ASSERT( ::std::tr1::is_placeholder<T>::value > 0 ); }

1 0

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

07 Jul '06

Boost Regression test failures Report time: 2006-07-07T11:05:25Z 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… 459 failures in 33 libraries algorithm/string (1) concept_check (1) conversion (1) filesystem (4) graph (6) integer (3) io (1) iostreams (60) iterator (1) lambda (2) math (5) mpl (20) numeric/conversion (4) numeric/interval (2) numeric/ublas (7) optional (2) parameter (33) pool (3) program_options (19) python (92) random (1) rational (5) serialization (46) signals (16) smart_ptr (1) spirit (12) test (8) tr1 (79) type_traits (11) typeof (9) utility (2) utility/enable_if (1) wave (1) |algorithm/string| replace: vc-7_1-stlport |concept_check| class_concept_check_test: vc-7_1-stlport |conversion| lexical_cast_test: sun-5.8 |filesystem| fstream_test: sun-5.8 mbcopy: sun-5.8 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 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 |math| octonion_test: sun-5.8 quaternion_mult_incl_test: sun-5.8 quaternion_test: sun-5.8 vc-7_1-stlport special_functions_test: 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 test2: vc-7_1-stlport test3: vc-7_1-stlport vc-7_1-stlport test4: vc-7_1-stlport test5: vc-7_1-stlport test6: 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_codecvt_null: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp test_demo_fast_archive: sun-5.8 test_demo_fast_archive_dll: sun-5.8 test_demo_portable_archive_dll: vc-6_5 test_deque_xml_archive: 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_shared_ptr_132_binary_archive: sun-5.8 test_shared_ptr_132_binary_archive_dll: sun-5.8 test_shared_ptr_132_text_archive: sun-5.8 test_shared_ptr_132_text_archive_dll: 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: sun-5.8 test_shared_ptr_132_xml_archive_dll: 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_xml_warchive_dll: gcc-4.1.0_linux_x86_64 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_utf8_codecvt: qcc-3.3.5_gpp qcc-3.3.5_gpp qcc-3.3.5_gpp 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 test_vector_text_archive: gcc-3.4.5_linux_x86_64 test_vector_text_archive_dll: gcc-3.4.5_linux_x86_64 |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 |smart_ptr| shared_ptr_delete_fail: sun-5.8 |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_complex_overloads: vc-7_0 run_random: sun-5.8 vc-7_0 std_run_complex_overloads: sun-5.8 vc-7_0 std_run_random: sun-5.8 vc-7_0 std_test_array: vc-7_0 std_test_array_tricky: vc-7_0 std_test_bind: darwin-4.0.1 sun-5.8 vc-7_0 std_test_complex: sun-5.8 vc-7_0 std_test_function: sun-5.8 vc-7_0 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 vc-7_0 std_test_reference_wrapper: sun-5.8 vc-7_0 std_test_regex: vc-7_0 std_test_result_of: sun-5.8 vc-7_0 std_test_shared_ptr: sun-5.8 vc-7_0 std_test_tuple: sun-5.8 vc-7_0 std_test_tuple_tricky: sun-5.8 vc-7_0 std_test_type_traits: sun-5.8 vc-7_0 test_array: vc-7_0 test_array_tricky: vc-7_0 test_bind: darwin-4.0.1 vc-7_0 test_boost: vc-7_1-stlport test_complex: vc-7_0 test_function: vc-7_0 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_0 vc-7_1-stlport test_reference_wrapper: vc-7_0 test_regex: vc-7_0 vc-7_1-stlport test_result_of: vc-7_0 test_shared_ptr: vc-7_0 test_tuple: vc-7_0 test_tuple_tricky: vc-7_0 test_type_traits: sun-5.8 vc-7_0 tr1_aligned_storage_test: vc-7_0 tr1_extent_test: sun-5.8 tr1_is_abstract_test: sun-5.8 tr1_is_array_test: vc-7_0 tr1_is_const_test: vc-7_0 tr1_is_empty_test: sun-5.8 tr1_is_floating_point_test: vc-7_0 tr1_is_function_test: sun-5.8 tr1_is_integral_test: vc-7_0 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 vc-7_0 tr1_is_void_test: vc-7_0 tr1_is_volatile_test: vc-7_0 tr1_rank_test: sun-5.8 tr1_tricky_function_type_test: sun-5.8 vc-7_0 tr1_tricky_partial_spec_test: vc-7_0 |type_traits| decay_test: sun-5.8 extent_test: sun-5.8 is_abstract_test: sun-5.8 is_empty_test: sun-5.8 is_function_test: sun-5.8 is_member_func_test: sun-5.8 is_member_obj_test: sun-5.8 is_object_test: sun-5.8 is_reference_test: sun-5.8 rank_test: sun-5.8 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

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[intrusive_ptr] adding thread safety
by JOAQUIN LOPEZ MU?Z 07 Jul '06

07 Jul '06

Hello, A naive usage of intrusive_ptr involves having a refcount embedded in the pointed to object and providing add_red and release functions like: void intrusive_ptr_add_ref(const my_class* p) { ++(p->ref); } template<typename T> void intrusive_ptr_release(const my_class* p) { if(--(p->ref)==0){ // whatever } } But, AFAICS, this is not thread safe, as intrusive_ptr itself does not add any thread safety layer. So my question is how to efficiently provide add_ref and release functions which are thread safe (wrt to refcounting)? I can use a class-level boost::detail::lightweight_mutex in the obvious way, but I understand shared_ptr uses much more advanced mechanisms and maybe these are available for (semi)public consuption at boost/detail. Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

3 2

[Boost-bugs] [ boost-Bugs-1518640 ] bug in boost:format
by SourceForge.net 07 Jul '06

07 Jul '06

Bugs item #1518640, was opened at 2006-07-07 13:07 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=1518640&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: function Group: None Status: Open Resolution: None Priority: 5 Submitted By: AndreiMS (andreims) Assigned to: Douglas Gregor (dgregor) Summary: bug in boost:format Initial Comment: Hello, software configuration: boost 1.33.1 stlport 5.0 example: std::string ret = boost::str(boost::format("%1%") % std::string("")); If you try to send as first argument the empty string to %-operator then you catch assertion failure in stl code: STLport-5.0.0\stlport\stl/debug/_string.h(308): STL error : Invalid argument to operation (see operation documentation) STLport-5.0.0\stlport\stl/debug/_string.h(308): STL assertion failure: (__s != 0) The null-pointer argument is passed from this: boost/boost/format/feed_args.hpp namespace boost { namespace io { namespace detail { template<class Ch, class Tr, class Alloc> void mk_str( std::basic_string<Ch,Tr, Alloc> & res, const Ch * beg, typename std::basic_string<Ch,Tr,Alloc>::size_type size, std::streamsize w, const Ch fill_char, std::ios_base::fmtflags f, const Ch prefix_space, // 0 if no space-padding bool center) // applies centered/left/right padding to the string [beg, beg+size[ // Effects : the result is placed in res. { typedef typename std::basic_string<Ch,Tr,Alloc>::size_type size_type; res.resize(0); if(w<=0 || static_cast<size_type>(w) <=size) { // no need to pad. res.reserve(size + !!prefix_space); if(prefix_space) res.append(1, prefix_space); res.append(beg, size); /// here "beg" is null } ... ////////////////////-------------------------- There is no assertion failure if you pass empty string as second argument, e.g. std::string ret = boost::str(boost::format("%1% %2%") % 2 % std::string("")); Best regards, Andrei Selikhanovich ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1518640&group_… Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

1 0

[Boost-bugs] [ boost-Support Requests-1518639 ] Support Request for Borland C++Builder 2006 ( BDS 2006)
by SourceForge.net 07 Jul '06

07 Jul '06

Support Requests item #1518639, was opened at 2006-07-07 12:07 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1518639&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: Building Boost Group: None Status: Open Resolution: None Priority: 5 Submitted By: Tobias Besch (allgaeu_tobias) Assigned to: Nobody/Anonymous (nobody) Summary: Support Request for Borland C++Builder 2006 ( BDS 2006) Initial Comment: I'd like to request support for the Borland C++Builder 2006 of the Borland Developer Studio 2006 (BDS 2006). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1518639&group_… Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

1 0

UTF Ranges
by Sean Parent 07 Jul '06

07 Jul '06

On Jul 5, 2006, at 10:15 PM, boost-request(a)lists.boost.org wrote: > std::string s = get_some_utf_8_xml_data(); > > utf_range r = boost::find(utf_range(s), UL0x0000FEFF); > > assert(*r.begin().base() == U0xEF); Not sure why find would return a range - but so long as I can also use it with standard algorithms, and it generates efficient code I'm happy. Sean

2 1

[Boost-bugs] [ boost-Bugs-1518563 ] Shmem serious bugs
by SourceForge.net 07 Jul '06

07 Jul '06

Bugs item #1518563, was opened at 2006-07-07 01:08 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=1518563&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: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Shmem serious bugs Initial Comment: Hi, these are the 2 things I have found so far using the shmem lib. My understading is that this is not yet a boost library but it has been accepted to become one in the near future. Accept my apologies if I shouldnÂ´t had posted here. 1) If you try to use a node allocator with a fixed_named_shared_object it won't compile. Works fine for non fixed segments. 2) If you concatenate with the '+=' operator a boost::string with a NULL terminated str (char *) in a loop up to N times, you get bad_alloc sooner than if you do a single allocation of the same lenght of the N previous allocations. So concatenating is wasting memory somehow, as you can allocate longer strings with a single allocation than with N equivalent concatenations. Thanks. (bblasi at jblasi dot com) ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1518563&group_… Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

1 0

Boost regression notification (2006-07-05 [RC_1_34_0])
by Douglas Gregor 07 Jul '06

07 Jul '06

Boost Regression test failures Report time: 2006-07-05T11:03:50Z 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… 519 failures in 34 libraries algorithm/string (2) concept_check (1) conversion (1) filesystem (3) graph (6) integer (2) io (1) iostreams (60) iterator (1) lambda (2) math (5) mpl (20) numeric/conversion (4) numeric/interval (1) numeric/ublas (6) optional (2) parameter (33) pool (2) program_options (19) python (90) random (1) rational (5) serialization (117) signals (12) smart_ptr (1) spirit (12) test (8) thread (1) tr1 (77) type_traits (11) typeof (9) utility (2) utility/enable_if (1) wave (1) |algorithm/string| find: msvc-8.0 replace: vc-7_1-stlport |concept_check| class_concept_check_test: vc-7_1-stlport |conversion| lexical_cast_test: sun-5.8 |filesystem| fstream_test: sun-5.8 mbcopy: sun-5.8 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 |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 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 |math| octonion_test: sun-5.8 quaternion_mult_incl_test: sun-5.8 quaternion_test: sun-5.8 vc-7_1-stlport special_functions_test: 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 |numeric/ublas| concepts: 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 |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 |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_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_text_warchive_dll: msvc-8.0 test_array_xml_warchive_dll: msvc-8.0 test_binary_text_warchive_dll: msvc-8.0 test_binary_xml_warchive_dll: msvc-8.0 test_class_info_save_text_warchive_dll: msvc-8.0 test_class_info_save_xml_warchive_dll: msvc-8.0 test_codecvt_null: qcc-3.3.5_gpp qcc-3.3.5_gpp test_contained_class_text_warchive_dll: msvc-8.0 test_contained_class_xml_warchive_dll: msvc-8.0 test_cyclic_ptrs_text_warchive_dll: msvc-8.0 test_cyclic_ptrs_xml_warchive_dll: msvc-8.0 test_delete_pointer_text_warchive_dll: msvc-8.0 test_delete_pointer_xml_warchive_dll: msvc-8.0 test_demo_fast_archive: sun-5.8 test_demo_fast_archive_dll: sun-5.8 test_demo_portable_archive_dll: vc-6_5 test_deque_text_warchive_dll: msvc-8.0 test_deque_xml_warchive_dll: msvc-8.0 test_derived_class_ptr_text_warchive_dll: msvc-8.0 test_derived_class_ptr_xml_warchive_dll: msvc-8.0 test_derived_class_text_warchive_dll: msvc-8.0 test_derived_class_xml_warchive_dll: msvc-8.0 test_derived_text_warchive_dll: msvc-8.0 test_derived_xml_warchive_dll: msvc-8.0 test_diamond_text_warchive_dll: msvc-8.0 test_diamond_xml_warchive_dll: msvc-8.0 test_exported_text_warchive_dll: msvc-8.0 test_exported_xml_warchive_dll: msvc-8.0 test_list_ptrs_text_warchive_dll: msvc-8.0 test_list_ptrs_xml_warchive_dll: msvc-8.0 test_list_text_warchive_dll: msvc-8.0 test_list_xml_warchive_dll: msvc-8.0 test_map_text_warchive_dll: msvc-8.0 test_map_xml_warchive_dll: msvc-8.0 test_mi_text_warchive_dll: msvc-8.0 test_mi_xml_warchive_dll: msvc-8.0 test_multiple_ptrs_text_warchive_dll: msvc-8.0 test_multiple_ptrs_xml_warchive_dll: msvc-8.0 test_no_rtti_text_warchive_dll: msvc-8.0 test_no_rtti_xml_warchive_dll: msvc-8.0 test_non_default_ctor2_text_archive: 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 test_non_default_ctor2_text_warchive: qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_text_warchive_dll: msvc-8.0 qcc-3.3.5_cpp qcc-3.3.5_cpp test_non_default_ctor2_xml_warchive_dll: msvc-8.0 test_non_default_ctor_text_warchive_dll: msvc-8.0 test_non_default_ctor_xml_warchive_dll: msvc-8.0 test_non_intrusive_text_warchive_dll: msvc-8.0 test_non_intrusive_xml_warchive_dll: msvc-8.0 test_null_ptr_text_warchive_dll: msvc-8.0 test_null_ptr_xml_warchive_dll: msvc-8.0 test_nvp_text_warchive_dll: msvc-8.0 test_nvp_xml_warchive_dll: msvc-8.0 test_object_text_warchive_dll: msvc-8.0 test_object_xml_warchive_dll: msvc-8.0 test_optional_text_warchive_dll: msvc-8.0 test_optional_xml_warchive_dll: msvc-8.0 test_polymorphic_text_warchive_dll: msvc-8.0 test_polymorphic_xml_warchive_dll: msvc-8.0 test_primitive_text_warchive_dll: msvc-8.0 test_primitive_xml_warchive_dll: msvc-8.0 test_recursion_text_warchive_dll: msvc-8.0 test_recursion_xml_warchive_dll: msvc-8.0 test_registered_text_warchive_dll: msvc-8.0 test_registered_xml_warchive_dll: msvc-8.0 test_reset_object_address: vc-7_0 test_reset_object_address_dll: vc-7_0 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sun-5.8 tr1_is_object_test: sun-5.8 tr1_is_reference_test: sun-5.8 vc-7_0 tr1_is_void_test: vc-7_0 tr1_is_volatile_test: vc-7_0 tr1_rank_test: sun-5.8 tr1_tricky_function_type_test: sun-5.8 vc-7_0 tr1_tricky_partial_spec_test: vc-7_0 |type_traits| decay_test: sun-5.8 extent_test: sun-5.8 is_abstract_test: sun-5.8 is_empty_test: sun-5.8 is_function_test: sun-5.8 is_member_func_test: sun-5.8 is_member_obj_test: sun-5.8 is_object_test: sun-5.8 is_reference_test: sun-5.8 rank_test: sun-5.8 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

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Comment on string / unicode discussion
by Sean Parent 07 Jul '06

07 Jul '06

I don't have enough time to delve deeply into this thread but I thought I'd make a few passing comments. Adobe has a fairly major string class problem (we joke that every project must have it's own string class - which is nearly true). There isn't such thing as a single type of string - there are _many_ purposes and you need to be able to handle things like language and style runs and large, large blocks of text with efficient edits, UI substations (which are aware of things like split negation and masculine/feminine forms), language based ordering, different encodings... We need another string class like a hole in the head. What we do need - are good standard algorithms which can be applied to any string class. I believe this is doable with the current iterator interface. I believe it's possible (meaning I've done some quick experiments) to define an input iterator (actually as strong as a non-mutating forward iterator) and output iterator, which do conversions. This means that you can define operations in terms of unicode encoding (though some operations such as ordering may still require a locale). Consider - to_lower(first, last, output) to_upper(first, last, output) such transformations can work with any encoding (you can uppercase UTF-8 into UTF-32). They can't work in-situ (but I don't think to_upper or to_lower really can work in-situ - certainly not in UTF-8 and probably not in UTF-16, and I believe there are some multi- character forms that even break in UTF-32...). It is possible though to wrap them with a replace function for in-place operations. The current std::find() will work with such iterator adapters to find single UTF-32 character (in any encoded sequence). Currently with ASL we're taking such an approach for localization strings (replacing an existing string class for localized strings at Adobe with a small set of functions and _any_ string class (any sequence of code units), including std::string, std::vector (or deque or list). You might take a look here for some ideas: <http:// opensource.adobe.com/group__asl__xstring.html>. Sean

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Adobe Source Libraries, GIL, and Boost
by Sean Parent 07 Jul '06

07 Jul '06

Lubomir pointed me at the GIL thread on the list - and I wanted to make a few comments about how I see the relationship between Boost and ASL. The charter for Boost is to vet libraries for possible inclusion in the standard. The charter for ASL is to explore the use of generic and declarative techniques to develop large applications. Our goal is to replace 85% of the imperative code being developed with small declarative constructs. Certainly there is going to be some overlap between the two project and ASL makes _heavy_ use of Boost and borrows ideas from Boost quite freely. For parts of ASL, inclusion into Boost makes perfect sense - and we try to actively defer to Boost when a Boost library can meet our needs. Boost certainly has a significantly larger user base than ASL and far more active developers (anyone interested in helping out ASL???). I _really_ wish that I had enough time/resources on my team to take some parts of ASL and contribute them to Boost. However, my teams focus currently needs to stay on the higher level libraries (which I don't think are ready for Boost yet) and we simply can't afford the time to go through the submission process. But I'm 100% supportive of Lubomir's contribution of GIL (Lubomir is not on my team, and I'm thrilled that he can take the time for this submission to Boost - just I'm I'm thrilled that we were able to release it as part of ASL). GIL is a very significant piece of work. I will also support anyone who would like to borrow portions of ASL to contribute them to Boost. Some libraries that I think would be interesting to get into Boost with some comments about what I see as still needing to be done. --- Forest <http://opensource.adobe.com/group__asl__tutorials__forest.html> I've started to map the concepts from forest into the terminology of BGL <http://opensource.adobe.com/wiki/index.php/ Edge_Interface_For_Forest_Iterators>. There is also some work here about generic algorithms for node based iterators (see the undocumented code for reverse_append here <http:// opensource.adobe.com/reverse_8hpp-source.html>. With a bit more polish I think this could be a _really_ nice collections of node based algorithms and concepts, which could be applied to a single linked list and other pre-traversed structures such as forest. There are also some forest specific algorithms I'd like to see such as the rotate necessary for balancing AVL trees (any forest is a binary tree, and vice versa - see Knuth). Range Based Algorithms (using the boost range library) <http:// opensource.adobe.com/group__standard__extensions.html> I've just started busting these out into separate headers (along the boost style - for example adobe/algorithm/reverse.hpp) - for inclusion in Boost I'd like to see this complete. This would be pretty simple to incorporate into Boost (and they are quite handy!). CMath C99 compatibility <http://opensource.adobe.com/group__cmath.html> There are also some rounding modes which were missing - This seems like a pretty straight forward "grab". ZUIDs <http://opensource.adobe.com/classadobe_1_1zuid__t.html> I'd like to see some review of the platform dependent code which gathers entropy to ensure we're getting enough entropy. A short tutorial would be good. ZUIDs would be a good addition to the serialization library. md5 and SHA code <http://opensource.adobe.com/classadobe_1_1md5__t.html> <http://opensource.adobe.com/group__adobe__sha.html> Review and a short tutorial ONCE <http://opensource.adobe.com/group__adobe__once.html> The STATIC_INSTANCE stuff might be able to be removed - this was done for the Mac where static initializer on DLLs were getting executed on a thread after load so other functions in the compilation unit could be executed concurrently. That may have been fixed (I haven't tracked the issue) - this library would be a good addition to Boost threads. ThreadID <http://opensource.adobe.com/group__asl__thread__id.html> Another good addition to Boost threads. Final <http://opensource.adobe.com/group__adobe__final.html> I don't use inheritance much but this would be a nice addition to Boost utilities. Counter <http://opensource.adobe.com/classadobe_1_1counter__t.html> If boost would surface the lightweight mutex used in shared_ptr - this would go away. (This is a heavyweight one - as I'm counting on Boost providing a lightweight one in the future :-) ). value_t <http://opensource.adobe.com/classadobe_1_1value__t.html> I think there are some nice ideas here which could be stolen for boost::any - value_t also captures equality comparison, makes use of a variant to avoid heap allocations for some common types (I'm not sure but I think boost any does two heap allocations, and value_t never does more than one). regular_object <http://opensource.adobe.com/ classadobe_1_1regular__object.html> This is a generalization of value_t (and boost any) - the idea is to be able to parameters an "any" object by concept. Mat Marcus has been doing a fair amount of work with this library. Needs better docs and tutorial. dictionary_t, array_t, name_t <http://opensource.adobe.com/ group__asl__tutorials__dictionary__t.html> ASL using these heavily to communicate with the runtime languages - could be used as part of the Python bindings (we're currently looking at doing Lua bindings with them. dictionary_t needs a closed hash implementation - there is one in the /future/ directory in ASL inspired by the Lua table structure, I haven't had a chance to compare it in depth to the Google hash implementations. Copy-On-Write <http://opensource.adobe.com/ classadobe_1_1copy__on__write.html> This is a fairly polished library - I've done lots of experimenting with COW (I prefer the term copy-on-modify - but COM confuses everyone...) over the last 10 years or so. This is a nice, simple, and efficient implementations (but it does need a better counter - see above). XML Parser <http://opensource.adobe.com/ classadobe_1_1xml__parser__t.html> This is a subset of an XML parser developed for xstrings. In our upcoming .18 release it has been expanded to support more uses by Eric Berdahl and Foster Brereton. It is designed to be a very efficient parser which pareses in place, and allows for preorder and postorder handling of elements (allowing for inplace substitutions). Needs a fair amount of work still to be a general XML parser - but I'd like to see that happen. --- Wow - that's not a complete list (much longer than I set out to write - I forget how large of a library we've created!). If you're not aware of ASL - it's all released under the MIT license (making it fairly straight forward to get through a code audit). I'd be happy to help out anyone who has the time to prepare some of these libraries (or any other library from ASL) for inclusion in Boost - ASL would also benefit from such an effort. Sean

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[asio][thread] a new model for boost::asio (coroutine)
by 李慧霸 07 Jul '06

07 Jul '06

I have used the recent boost::asio library in my small project, I found it very difficult to correctly write the asynchronous code. So I tried another approach ---- a Half-Sync/Half-Async, I found it much better. The basic idea is very simple, utilize the coroutines(also called light weight threads, or user level threads) to handle multiple connections simultaneously and collaboratively. This approach has the advantange of simplicity in the Synchronous IO model, as well as the high performance in the Asynchronous IO model. Unfortunately, there isn't any coroutine support in boost::thread, and I had to make my experiment with the fiber support in ms windows. So I suggest coroutine be support. The benefit isn't only confined to boost::asio, in fact, it's an important way to describe algorithm flow, and many dynamic languages, both old and new, are supporting this feature. -------------- lihuiba 2006-07-05

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updated cvalarray
by Michael Tegtmeyer 06 Jul '06

06 Jul '06

I have updated the cvalarray tarball in the vault in response to comments. Changes include documentation fixes, minor bug fix, and additional test cases. See the changelog for specifics. Also in response to comments, I will add another document describing this particular implementation. Until then, highlights include: - expression templates for math operations - explicit assignment loop unrolling for small arrays - fundamental type recognition for memcpy for larger arrays Thanks for the comments. As I mentioned to some folks privately, I have no experience with VC++ so if anyone would care to try and compile a test case, I'd be grateful to hear about the experience. Thanks Mike

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Is there interest for iterator based conversion library?
by Alexander A Potocki 06 Jul '06

06 Jul '06

Hi boost community! I would like to propose my iterator based conversion library. It allows declaring and using transformations by following way: std::wstring utf16string(L”some sequence to convert”); typedef cvt::encoder<wchar_t, char> coder_t; coder_t coder = cvt::utf16() >> cvt::utf8(); That piece of code declares converter from wchar_t to char sequences and then instantiate such converter by utf16 to utf8 transformation. Then that converter instance can be used by following way: typedef cvt::convert_input_iterator<coder_t, std::wstring::const_iterator > it_t; - declaration of input iterator std::string result; std::copy( it_t(coder, utf16string.begin(), utf16string.end()), it_t(coder, utf16string.end(), utf16string.end()), std::back_inserter(result) ); Now we have utf8 encoded string in result container. That’s all. Library contains implementation for following transformations/algorithms: utf7, utf8, utf16(be/le), utf32(be, le), Unicode simple folding, base64, rc5(cipher/decipher). Library allows creating pipeline converters, e.g.: typedef cvt::encoder<char, char> coder_t; // char to char sequence transformation coder_t coder = cvt::utf7() >> cvt::utf16() >> cvt::utf8() / cvt::int8() >> cvt::rc5<32,12,8>(key) / cvt::int8() >> cvt::base64(); That expression defines pipeline transformation. Utf7 encoded sequence transforms to utf16 encoded sequence, then to utf8 encoded, then performs rc5 cipher with specified key, then performs base64 encoding. Library can be found at http://sourceforge.net/projects/trotter-cvt/ Alexander Potocki

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Re: [boost] Comment on string / unicode discussion
by Reece Dunn 06 Jul '06

06 Jul '06

Sean Parent wrote: > What we do need - are good standard algorithms which can be applied > to any string class. Agreed. This is where Boost.StringAlgorithms come in. What I am interested in is *efficient* codepage -> codepage conversion. For example, I may want to read a file in that is stored as 8-bit ASCII as UTF8. Likewise, I may want to take UTF8 data and save it as UTF16, MacRoman or some other encoding. What you need is an encoding -> UTF32 converter and a UTF32 -> encoding converter. Ideally, I would like each of these to be as efficient as possible. They should also be able to accept partial data. That is, if I am reading in a UTF8 file in blocks, it is possible to hit the middle of a character. This can be solved in a random access stream by seeking to the previous character, but this is not always possible. Consider: std::basic_ostringstream< uchar32_t > utf; utf.set_locale( utf8_to_utf32_cvt()); // not sure on exact code here std::string utf8 = some_utf8_data(); std::copy( utf8.begin(), utf8.end(), stream_inserter( utf )); The problem with this is that the stringstream type is uchar32_t, but has an *input* character type of char. The conversion mappings are of the form: n source characters -> m destination characters where these may be encoded byte sequences (e.g. UTF8), surrogate pairs (e.g. UTF16) or combining characters (e.g. a + umlaut). I am not sure how good locales are for this kind of functionality and also how good C++ streams are for this. However, it would be nice to have a stream interface (i.e. << and >>). - Reece _________________________________________________________________ Be one of the first to try Windows Live Mail. http://ideas.live.com/programpage.aspx?versionId=5d21c51a-b161-4314-9b0e-49…

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