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

[conversion] wchar_t support in lexical_cast
by Alexei Alexandrov 14 Feb '06

14 Feb '06

Hi, I'm trying to get boost working for x86_64 and Itanium on Windows. The result environment combination is rather strange: Platform SDK contains old Dinkumware STL and new compiler (14.0). So, the biggest problems is that I have to compile it without native wchar_t support. And lexical_cast is one of places where a problem exists: #if defined(BOOST_NO_STRINGSTREAM) || \ defined(BOOST_NO_STD_WSTRING) || \ defined(BOOST_NO_STD_LOCALE) || \ defined(BOOST_NO_INTRINSIC_WCHAR_T) #define DISABLE_WIDE_CHAR_SUPPORT #endif You can see that wchar_t support is disabled compeletely in lexical_cast if wchar_t is not available as a native type. Why is it so? It seems that I got it working if I change it to #if defined(BOOST_NO_STRINGSTREAM) || \ defined(BOOST_NO_STD_WSTRING) || \ defined(BOOST_NO_STD_LOCALE) #define DISABLE_WIDE_CHAR_SUPPORT #endif But probably there are some caveats here. What are they? -- Alexei Alexandrov

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Will foreach or statechart be in release 1.34?
by Joe Gottman 14 Feb '06

14 Feb '06

Both foreach and statechart have been accepted into boost and added to the boost CVS, but as of today (February 13) neither has been added to the "What's new" section of the index. Will either be included in the 1.34 release? Joe Gottman

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[range] bcc portability fix
by Tobias Schwinger 13 Feb '06

13 Feb '06

There's an ICE problem in range/detail/common.hpp with BCC. --- boost/range/detail/common.hpp 26 Jul 2004 14:20:06 -0000 1.3 +++ boost/range/detail/common.hpp 9 Feb 2006 19:20:27 -0000 @@ -78,35 +78,35 @@ template< typename C > class range { - typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< boost::range_detail::range_helper<C>::is_pair_, + typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_pair_, boost::range_detail::std_pair_, void >::type pair_t; - typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< boost::range_detail::range_helper<C>::is_array_, + typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_array_, etc. solves it. OK to commit? -- Tobias

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[graph] biconnected components patch
by Janusz Piwowarski 13 Feb '06

13 Feb '06

Hi all, I made two changes to biconnected components algorithm. First, because algorithm expects an udirected graph, I reduced the invocation of visitor's on_back_edge event for one direction only. Second, I modified the predecessor map use and now after algorithm completion map contains the full depth first search tree. Patch for code and documentation is attached. -- Regards, Janusz

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[Boost-bugs] [ boost-Patches-1430820 ] [thread] [tss_hook.cpp] Suppress MSVC CRT memory leak report
by SourceForge.net 13 Feb '06

13 Feb '06

Patches item #1430820, was opened at 2006-02-13 09:49 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1430820&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: Kevin J Bluck (kbluck) Assigned to: Nobody/Anonymous (nobody) Summary: [thread] [tss_hook.cpp] Suppress MSVC CRT memory leak report Initial Comment: MSVC CRT memory debugger pedantically complains about an unreleased singleton allocation. Although the consensus is that this is a harmless annoyance, it does cause some concern for MSVC users who don't know what is happening. Issue discussed in this Boost mailing list thread: http://lists.boost.org/boost-users/2005/08/13538.php Attached is a patch for tss_hook.cpp, which uses the function _CrtSetDbgFlag to temporarily turn off heap allocation tracking for the particular allocation in question. It should have no effect except on MSVC debug builds. On my configuration (msvc-8_0) it eliminates the leak warnings. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1430820&group_… ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[algorithm/string] New test failures on Tru64/CXX
by Markus Schöpflin 13 Feb '06

13 Feb '06

Currently, two of the string tests fail to compile with the following error: cxx: Error: /vol2/boost/boost/boost/algorithm/string/detail/finder.hpp, line 412: #20 identifier "find_tail_impl" is undefined detected during: instantiation of "boost::iterator_range<Iterator> boost::algorithm::detail::head_finderF::operator()(Forwar dIteratorT, ForwardIteratorT) const [with ForwardIteratorT=char *]" at line 254 of "/vol2/boost/boost/boost/algorithm/string/find.hpp" instantiation of "boost::iterator_range<boost::range_result_iterator<C>::t ype> boost::algorithm::find_head(RangeT &, int) [with RangeT=std::string]" at line 129 of "../libs/algorithm/string/test/find_test.cpp" find_tail_impl( Begin, End, -m_N ); Looking the the code in question (struct head_finderF::operator()) it contains the following on line 412: iterator_range<ForwardIteratorT> Res = find_tail_impl( Begin, End, -m_N ); But find_tail_impl() is not declared until line 486 in the same file. Added the following declaration template <typename ForwardIteratorT> iterator_range<ForwardIteratorT> find_tail_impl( ForwardIteratorT Begin, ForwardIteratorT End, unsigned int N); at line 394, just before the definition of struct head_finderF makes the tests compile and pass ok. I have to admit I'm not sure that the compiler is right to complain about this, but it seems reasonable to me. So could the declaration of find_tail_impl please be added to the file somewhere before it's first used. TIA, Markus

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[parameter] Possible breaking change
by David Abrahams 13 Feb '06

13 Feb '06

As part of the new [un]named template parameter support, we are considering a breaking change to the binding<ArgumentPack, Keyword, Default = void> metafunction. Right now, when no 3rd argument is supplied indicating the default type, and the ArgumentPack contains no matching keyword, the result is void. Under the proposed change, the result would be a compile-time error. The upshot is that, to find out whether a particular parameter is in the ArgumentPack, you'd need to supply some tag type that you know won't appear in the ArgumentPack as the 3rd argument to binding, and check for that. Any objections? -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[Boost-bugs] [ boost-Support Requests-1430659 ] How to use the Boost with the aCC compiler
by SourceForge.net 13 Feb '06

13 Feb '06

Support Requests item #1430659, was opened at 2006-02-13 13:38 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=1430659&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: Genia (aevgenia) Assigned to: Nobody/Anonymous (nobody) Summary: How to use the Boost with the aCC compiler Initial Comment: Hi, We widely use the Boost packages (build with gcc- stlport ). For now we tried to use it on HP_UX machines with the compiler aCC-3.34 and STLport- 4.5.2. In this configuration compilation fails inside the boost header files. Does the Boost package support the aCC compiler? How it is possible to build the Boost package with the aCC compiler and with STLport? We will be very appriciated for any help. Thanks, Genia ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1430659&group_… ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Re: [boost] Nested Boost Binds
by Sergey Lukin 13 Feb '06

13 Feb '06

Peter Dimov replied: > > t.async_wait(boost::bind(Component::Method1, &y, 10, boost::bind > > (DPC::Print1, &x, 2), &t)); > > You need to prevent the inner bind from being treated as a subexpression of > the outer bind. Either assign it to a function<>: > > boost::function<void()> f = boost::bind( DPC::Print1, &x, 2 ); > t.async_wait( boost::bind( Component::Method1, &y, 10, f ) ); > or use boost::protect, as explained at the end of > > http://boost.org/libs/bind/bind.html#nested_binds I tried both suggested solutions but still have the same errors boost::function<void(int)> f = boost::bind( DPC::Print1, &x, 2 ); t.async_wait( boost::bind( Component::Method1, &y, 10, f, &t ) ); or t.async_wait( boost::bind( Component::Method1, &y, 10, boost::protect(f), &t ) ); It seems like boost::protect does not not affect this expression at all. Maybe I'm doing something wrong. Thank you in advance, Sergey

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[website] When will the new website be ready?
by Rene Rivera 13 Feb '06

13 Feb '06

David Abrahams wrote: > Rene Rivera <grafik.list(a)redshift-software.com> writes: > >> In the new website structure and functioning it would be >> possible to do exactly what meta-comm does but directly on the >> website. > > Wonderful. I really like what I've seen of that so far. Do you have > an ETA for that new website structure, BTW? (ducks and covers) LOL; Loads, aims, shoots... request for help. It would go much faster if I had help in translating the existing content to the new site. And of course help in any new content. I just finished a new set of tweaks to the style from all the recent feedback I could remember. And also fixed the docs charset problem. With that, much of the detailed style work is done. Just a few small things to do. But I think it's ready for other people to help in adding content. So here's the request... If people want to volunteer, it only needs access to CVS, a text editor, and HTMLtidy. If you are intereted contact me. And for those that don't know, the new site design is at <http://boost.redshift-software.com/>. -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - grafikrobot/yahoo

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