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Re: [boost] [regex and string algo] again strange split behaviour
by Jan Hermelink 14 Jul '05

14 Jul '05

> It looks more like a bug than by design if you ask me. I don't think so - this behaviour is specified in the standardization proposal. To quote from http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2003/n1429.htm, Chapter "RE.8.2 Template class regex_token_iterator": "If the end of sequence is reached (regex_search returns false), the iterator becomes equal to the end-of-sequence iterator value, unless the sub-expression being enumerated has index -1: In which case the iterator enumerates one last string that contains all the characters from the end of the last regular expression match to the end of the input sequence being enumerated, provided that this would not be an empty string." !!! "provided that this would not be an empty string" !!! > I don't agree. > I think this is counterintuitive, both for string_algo and regex May be, but the above described behaviour has a good change to be standardized, and boost::split() should do the same thing. Jan -----Original Message----- From: boost-bounces(a)lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Thore Karlsen Posted At: Wednesday, July 13, 2005 6:03 PM Posted To: Boost Developer Conversation: [boost] [regex and string algo] again strange split behaviour Subject: Re: [boost] [regex and string algo] again strange split behaviour On Wed, 13 Jul 2005 16:42:06 +0200, "Jan Hermelink" <Jan.Hermelink(a)metalogic.de> wrote: >The 1.32 behaviour is compatible with Boost.Regex: > >boost::regex_token_iterator in splitting mode returns for > >"abc/abc/" -> 2 tokens > >This is compatible with the regex standardization proposal. > >I think the behaviour of boost::split should be the same. I don't agree. I think this is counterintuitive, both for string_algo and regex. It looks more like a bug than by design if you ask me. -- Be seeing you. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

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Re: [boost] [regex and string algo] again strange split behaviour
by Jan Hermelink 14 Jul '05

14 Jul '05

The 1.32 behaviour is compatible with Boost.Regex: boost::regex_token_iterator in splitting mode returns for "abc/abc/" -> 2 tokens This is compatible with the regex standardization proposal. I think the behaviour of boost::split should be the same. Regards, Jan -----Original Message----- From: boost-bounces(a)lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Stefan Slapeta Posted At: Wednesday, July 13, 2005 3:13 PM Posted To: Boost Developer Conversation: [boost] [string algo] again strange split behaviour Subject: [boost] [string algo] again strange split behaviour hi, I assume the behaviour of boost::split not to return the last token has been changed (in CVS). However, a side effect seems to be that there is also one token returned for _empty_ strings, which is very questionable IMO! summary (if '/' is the separator): boost 1.32: "" -> 0 tokens "abc/abc" -> 2 tokens "abc/abc/" -> 2 tokens CVS: "" -> 1 token (!) "abc/abc" -> 2 tokens "abc/abc/" -> 3 tokens should be IMO: "" -> 0 tokens "abc/abc" -> 2 tokens "abc/abc/" -> 3 tokens Thoughts? Stefan _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

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[Parameter] instance() causing lots of failures
by Douglas Gregor 14 Jul '05

14 Jul '05

Lines like this: keyword<name_>& name = instance(); are causing failures on lots of compilers. It looks like the workaround is simple, but we need to apply it to the platforms that are still failing... Doug

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[Boost-bugs] [ boost-Bugs-1238306 ] shared_ptr_basic_tests warnings on linux
by SourceForge.net 14 Jul '05

14 Jul '05

Bugs item #1238306, was opened at 2005-07-14 09:14 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=1238306&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: smart_ptr Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Peter Dimov (pdimov) Summary: shared_ptr_basic_tests warnings on linux Initial Comment: 1. warning: `struct X' has virtual functions but non-virtual destructor Resolution: add virtual keyword to destructor 2. warning: `struct Y' has virtual functions but non-virtual destructor Resolution: same as above ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1238306&group_… ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Boost-bugs] [ boost-Bugs-1238293 ] shared_from_this warnings on linux
by SourceForge.net 14 Jul '05

14 Jul '05

Bugs item #1238293, was opened at 2005-07-14 08:48 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=1238293&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: smart_ptr Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Peter Dimov (pdimov) Summary: shared_from_this warnings on linux Initial Comment: 1. warning: `class X' has virtual functions but non-virtual destructor Resolution: add virtual keyword to destructor 2. warning: `class Y' has virtual functions but non-virtual destructor Resolution: same as above 3. warning: `class impl' has virtual functions but non-virtual destructor Resolution: add virtual destructor 4. warning: `class impl2' has virtual functions but non-virtual destructor Resolution: item [3] ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1238293&group_… ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[parameter] ArgumentPack + macros
by Cromwell Enage 14 Jul '05

14 Jul '05

Whatever the final name of the concept is, shouldn't the template parameter type used by BOOST_PARAMETER_FUN and BOOST_PARAMETER_MEMFUN be called by this name? Cromwell D. Enage ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs

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[Boost-bugs] [ boost-Bugs-1238285 ] shared_ptr tests have warnings on linux
by SourceForge.net 14 Jul '05

14 Jul '05

Bugs item #1238285, was opened at 2005-07-14 08:36 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=1238285&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: smart_ptr Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Peter Dimov (pdimov) Summary: shared_ptr tests have warnings on linux Initial Comment: 1. warning: `class n_spt_abstract::X' has virtual functions but non-virtual destructor Resolution: add virtual keyword to destructor 2. warning: `class n_spt_shared_from_this::X' has virtual functions but non-virtual destructor Resolution: add virtual keyword to destructor 3. warning: `class n_spt_shared_from_this::Y' has virtual functions but non-virtual destructor Resolution: add virtual keyword to destructor 4. warning: `class n_spt_shared_from_this::impl' has virtual functions but non-virtual destructor Resolution: same as above Might I suggest that the Boost community crank up their warning levels and clean up their code too? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1238285&group_… ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Range] terminology
by David Abrahams 14 Jul '05

14 Jul '05

I note that http://www.boost.org/libs/range/doc/range.html uses the term "closed-open range." The term used in prior art is "half-open range." Is there a good reason to invent new terminology here? -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[filesystem] Windows 9X support?
by Beman Dawes 14 Jul '05

14 Jul '05

There have been two recent reports of Boost.Filesystem failures on Window 98. One involved Win98 using slightly different rules for network paths, the other was use of an unsupported function. The change to fix the first problem is very simple, but pervasive. It also applies only to the current version - the code is different for the i18n version, so will need to be tested again even if a change to the current version works OK. The second problem really needs testing, probably under a debugger. The full regression tests should also be run to ensure that more than one function isn't involved. I realize that those having to support legacy machines would like Boost.Filesystem to support Win 9X. But I don't really see any way to support 9X without some time consuming testing and debugging effort. But I just don't have the time and other resources to do that. So unless someone else volunteers to run Win 9X tests, debug problem reports, and submit patches, I'm not planning to try to support Win 9X. If anyone out there cares enough to volunteer some time and effort, please let me know. Thanks, --Beman

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[regex] regex_replace with format string replaced as it is
by Lorenzo Bettini 14 Jul '05

14 Jul '05

Hi when I use template <class traits, class Allocator, class charT> basic_string<charT> regex_replace(const basic_string<charT>& s, const basic_regex<charT, traits, Allocator>& e, const basic_string<charT>& fmt, match_flag_type flags = match_default); is there a way to make the fmt string be substituted as IT is? I mean if I specify "(\\)", for instance, I want that actually those four characters to be substituted for the occurrences of e in s, without any interpretation of ( and \. Of cource I could escape both ( and \, but I was wondering if there's an option to avoid this. thanks in advance Lorenzo

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