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[Accumulators] Passing construction arguments to dependent statistics
by Hugo Duncan 01 Aug '07

01 Aug '07

Given recent discussion on Time Series and Accumulators, I thought I would have a go at implementing a FIR filter for Accumulators, and have run into a problem. I decided to do this in two parts; first create a (reusable) delay statistic (similar to tail) that provides a history buffer for the signal and then create the filter (similar to tail_variate) , that will depend on the delay buffer. I have created the delay buffer with a length determined by a cache_size argument. This works well. I am now creating the filter, which has a "coefficents" argument to set the filter coefficients. I would like to pass the size of the coefficients list as the cache_size argument to the underlying delay buffer. Is this possible?

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[thread_safe_signals] assertion failure (patch)
by Rodolfo Schulz de Lima 01 Aug '07

01 Aug '07

There's a little bug in member function nolock_force_unique_connection_list which causes an assertion inside nolock_cleanup_connections because the _shared_state.unique() is false because the local variable newState also references _shared_state. The attached patch corrects this rather simple bug. Regards, Rodolfo Lima.

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[Subversion] Short down-time this evening
by Douglas Gregor 01 Aug '07

01 Aug '07

The Subversion repository will be down for a few hours (starting... now) while I work to repair some issues caused by a bug in the CVS- >SVN conversion utility. We should be back online this evening. My apologies for the short notice, but it's important to get this done *right*. - Doug

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Re: [boost] [Important] Boost Subversion repository is now online
by David Abrahams 01 Aug '07

01 Aug '07

on Tue Jul 31 2007, Beman Dawes <bdawes-AT-acm.org> wrote: > Douglas Gregor wrote: >> Hello all, >> >> The Boost Subversion repository is now back online. All of the files >> in CVS (including their histories) have been imported into the >> Subversion repository. > > After an apparently successful checkout, diff from log isn't working. > > Edit a file. Say trunk/configure. > Using TortoiseSVN, select it. Right click to get context menu. Select > diff. Works fine. > > Using TortoiseSVN, select it again if needed. Right click to get context > menu. Select show log. Works fine. Select one of the log messages. Right > click for context menu. Select Compare with working copy. > > This results in an error dialog: PROPFIND request failed on > '/svn/boost/svn/bc/36681/trunk/boost/configure' ... 207 Multi-Status > (https://svn.boost.org) Beman, Can you reproduce your problem using the canonical command-line tool? I doubt the repo maintainers are set up to test with tortoise. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com The Astoria Seminar ==> http://www.astoriaseminar.com

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[function_types] [wave] Build problems (trac #1100)
by dherring＠ll.mit.edu 01 Aug '07

01 Aug '07

I hit two difficulties when building Boost from SVN-trunk. They are related to trac ticket #1100, and I tried adding some comments to it, but my changes yielded Internal Error "Submission rejected as potential spam". Here's the issue and workarounds: > svn info Path: . URL: http://svn.boost.org/svn/boost/trunk Revision: 38337 > ./configure > ./tools/jam/src/bin.linuxx86/bjam --layout=system -q ----- MkDir1 bin.v2/libs/function_types MkDir1 bin.v2/libs/function_types/build MkDir1 bin.v2/libs/function_types/build/gcc-4.1.2 MkDir1 bin.v2/libs/function_types/build/gcc-4.1.2/release MkDir1 bin.v2/libs/function_types/build/gcc-4.1.2/release/threading-multi MkDir1 /svn/boost/libs/function_types/build/timestamps Jamfile</svn/boost/libs/function_types/build>.wave /svn/boost/libs/function_types/build/timestamps/arity_loops /bin/sh: line 1: chdir: command not found /bin/sh: line 2: /svn/boost/dist/bin/wave: No such file or directory chdir /svn/boost/libs/function_types/build /svn/boost/dist/bin/wave -S/svn/boost libs/function_types/build/preprocess_arity_loops.cpp -o /svn/boost/libs/function_types/build/timestamps/arity_loops ...failed Jamfile</svn/boost/libs/function_types/build>.wave /svn/boost/libs/function_types/build/timestamps/arity_loops... ----- The file <boost>/libs/function_types/build/Jamfile.v2, contains the offending 'chdir'. When 'chdir' is changed to 'cd', the build still fails on line 2. Things finally build correctly with a > bjam --layout=system --with-wave -q Thanks, Daniel

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Re: [boost] Boost C++/tcl integration lib
by Martin Wille 01 Aug '07

01 Aug '07

Fanzhe Cui wrote: > Hi, Please, never start a new thread by replying to an unrelated message. You're likely not going to get a lot of answers, simply because your message is hidden in the "Upcoming review of Time Series" thread. > On the boost document page it has entry of the library: > C++/Tcl - C++/Tcl is a library that allows the easy integration of C++ and > Tcl. I you're talking about the wiki page that lists software that uses Boost. The software listed there is not supported by Boost.org. It's just software that happens to use Boost. So you're asking at the wrong place. > If I follow the link of the library, it will direct me to: > http://cpptcl.sourceforge.net/ > And I can download source code of the library. But one problem I found was > that there is a header file "tcl.h", included as header by the source code, Well, obviously a library that offers TCL/C++ integration needs C++ and TCL. You apparently don't have Tcl or just a runtime of Tcl. > and it was missing. So I suppose this C++/Tcl library requires TCL pkg from > third party, e.g. ActiveState. But the pkg from ActiveState is not free. I What makes you think Tcl was not free? Googling for Tcl brings you to www.tcl.tk. That page contains a link named "Get Tcl/Tk now". Following that link, you get to a page containing links to downloads of various versions of Tcl, including instructions how to use the sources on various operating systems, including Windows. Look at http://www.tcl.tk/doc/howto/compile.html At http://www.tcl.tk/software/tcltk/license.html you can see the License for Tcl, which looks like BSD license to me. That means you don't have to pay for Tcl. HTH, m

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Boost Property Tree Status
by Eric Hill 01 Aug '07

01 Aug '07

I found the post on May 23, 2006 by Thorsten Ottosen saying that the Property Tree Library has been accepted into Boost. But I don't see it on the main Boost libraries page, rather just the sandbox entry for the original review. Does anyone know where Property Tree wound up? Eric

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[regex] regex_match algorithm strategy?
by Lorenzo Bettini 01 Aug '07

01 Aug '07

Hi I have to split a regular expression of the shape (simplified for this example) (?:\<(or)\>)|((?:[[:word:]]+)[[:blank:]]*(?=\()) the idea is to match (actually with regex_search algorithm) or as a keyword and to match function names in function invocations (or declarations); i.e., or ( should be matched as the keyword "or" and then a parenthesis, but foo ( "foo" should be matched as a function name the above expression works correctly (and I've always used that one). Now, I had to split that expression into two regular expressions (?:\<(or)\>) ((?:[[:word:]]+)[[:blank:]]*(?=\()) and try to match the above situations the same way. Thus, I'm trying to match each one and then take the one that matched first with the biggest length (and smallest prefix but this is not important now); of course I don't get the desired behavior, since in or ( "or" is matched as a function name. Thus I was wondering: which is the actual algorithm used by regex_search? Does it take into consideration other things beside the biggest length? thanks in advance Lorenzo -- Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze ICQ# lbetto, 16080134 (GNU/Linux User # 158233) HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com BLOGS: http://tronprog.blogspot.com http://longlivemusic.blogspot.com http://www.gnu.org/software/src-highlite http://www.gnu.org/software/gengetopt http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net

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[Report] 0 regressions on RC_1_34_0 (2007-08-01)
by Douglas Gregor 01 Aug '07

01 Aug '07

Boost Regression test failures Report time: 2007-07-30T10:21:37Z 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… No failures! Yay!

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development branch(es)
by Stefan Seefeld 01 Aug '07

01 Aug '07

Hi there, with the 1.34.1 release out the door, what are the plans concerning the repository and the various branches ? Where should bug fixes and other patches go ? Is the release branch going to become the new development branch, as was suggested in a mail some moons ago ? Should I wait for the subversion migration before doing anything ? What is the timeframe for the migration ? Thanks for clarifying any of the above points. Regards, Stefan -- ...ich hab' noch einen Koffer in Berlin...

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