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Re: [boost] [Review] Shmem
by Martin Bonner 07 Feb '06

07 Feb '06

----Original Message---- From: boost-bounces(a)lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Darren Cook Sent: 07 February 2006 08:06 To: boost(a)lists.boost.org Subject: Re: [boost] [Review] Shmem > 4. I didn't understand the first sentence in the limitations.html > page: > > "Shmem wants to be portable across multiple operating systems so that > it can not count with an operating systems that maps shared memory to > the same base address in all processes in the system" > > I think I'm stuck on "can not count with". I strongly suspect the original author meant "... so that it cannot count *on* an operating *system* that ...". I would rewrite the whole thing as: "Shmem is designed to be portable across multiple operating systems. As such it cannot rely on the operating system mapping shared memory to the same base address in each process." -- Martin Bonner Martin.Bonner(a)Pitechnology.com Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ, ENGLAND Tel: +44 (0)1223 203894

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[typeof] is T registered?
by Andy Little 07 Feb '06

07 Feb '06

Hi to the typeof developers, I am wondering if it is possible to add some functionality so user can tell if a type is in the database of registered types during compilation. It may be there already of course. template <typename T> struct Func{ //one possible use case typedef typename boost::mpl::eval_if< boost::is_typeof_registered<T>, // true if T is registered typeof_operation<T>, // use BOOST_TYPEOF try_something_else<T> >::type type; }; Its not critical, but I thought it might be useful while libraries are adding the typeof functionality. Also might help me in the "[typeof] gcc and typeof in function return type" thread. regards Andy Little

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Boost.Test: auto-linking breakage
by John Maddock 07 Feb '06

07 Feb '06

Boost.Test appears to be trying to autolink when it shouldn't - for example when including the boost/test/included/* headers again. See for example http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/output… John.

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simple pyste test failure
by Neal Becker 07 Feb '06

07 Feb '06

I wanted to learn about pyste, so I tried the "hello world" example, but this is what I get: pyste.py --debug --module=hello world.pyste DEBUG: world.xml Traceback (most recent call last): File "/usr/bin/pyste.py", line 4, in ? pyste.main() File "/usr/lib/python2.4/site-packages/Pyste/pyste.py", line 418, in main status = Begin() File "/usr/lib/python2.4/site-packages/Pyste/pyste.py", line 257, in Begin return GenerateCode(parser, module, out, interfaces, multiple) File "/usr/lib/python2.4/site-packages/Pyste/pyste.py", line 376, in GenerateCode declarations, parsed_header = parser.Parse(header, interface, tail) File "/usr/lib/python2.4/site-packages/Pyste/CppParser.py", line 165, in Parse declarations = self.ParseWithGCCXML(header, tail) File "/usr/lib/python2.4/site-packages/Pyste/CppParser.py", line 128, in ParseWithGCCXML declarations = ParseDeclarations(xmlfile) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 469, in ParseDeclarations parser.Parse(filename) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 46, in Parse self.ParseElement(id, element) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 70, in ParseElement func(id, element) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 319, in ParseStruct self.ParseClass(id, element) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 306, in ParseClass self.AddDecl(class_) File "/usr/lib/python2.4/site-packages/Pyste/GCCXMLParser.py", line 57, in AddDecl if decl.FullName() in self._names: File "/usr/lib/python2.4/site-packages/Pyste/declarations.py", line 48, in FullName return namespace + self.name TypeError: cannot concatenate 'str' and 'NoneType' objects ,----[ /home/nbecker/world.h ] | #include <string> | | struct World | { | void set(std::string msg) { this->msg = msg; } | std::string greet() { return msg; } | std::string msg; | }; `---- ,----[ /home/nbecker/world.pyste ] | Class("World", "world.h") | `----

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serialization - archive with states eof, fail, bad instead of throwing exceptions?
by Oliver.Kowalke＠infineon.com 07 Feb '06

07 Feb '06

Hello, would it be possible to change the implementation of serialisation archives to support states eof, fail and bad as iostreams do. I would prefer to test for this states after serializing/deserializing objects from archives instead of get exceptions thrown. Regards, Oliver

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iostreams::indirect_streambuf -> sync_impl returning integer?
by Oliver.Kowalke＠infineon.com 07 Feb '06

07 Feb '06

Hello, wouldn't it be better if indirect_streambuf::sync_impl returns a integer? In device::write I want to indicate that no character can be written to the external source via returning EOF (external device == socket -> peer has closed socket) instead throwing an exception. Regards, Oliver

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Re: [boost] Regex Crash
by Wang Weiwei 07 Feb '06

07 Feb '06

>David Abrahams <dave(a)boost-consulting.com> writes: > >> Is a malformed regex supposed to crash the library? See enclosed .cpp file > >Sorry, I'm a fool; this was an exception from the library, but the >debugger showed me some line in the middle of the backtrace, so I >couldn't see it. > >-- >Dave Abrahams >Boost Consulting >www.boost-consulting.com >_______________________________________________ >Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost > use bad_expression for safeguard Wang Weiwei

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Regex Crash
by David Abrahams 07 Feb '06

07 Feb '06

Is a malformed regex supposed to crash the library? See enclosed .cpp file kernel32.dll!7c81eb33() [Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll] kernel32.dll!7c81eb33() msvcp80d.dll!1048902d() msvcp80d.dll!1048843a() msvcr80d.dll!10243990() example.exe!boost::throw_exception<boost::regex_error>(const boost::regex_error & e={...}) Line 40 C++ example.exe!boost::regex_error::raise() Line 74 + 0x9 bytes C++ example.exe!boost::re_detail::basic_regex_parser<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::fail(boost::regex_constants::error_type error_code=error_paren, int position=20) Line 161 C++ example.exe!boost::re_detail::basic_regex_parser<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::parse_open_paren() Line 398 C++ example.exe!boost::re_detail::basic_regex_parser<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::parse_extended() Line 238 + 0x8 bytes C++ example.exe!boost::re_detail::basic_regex_parser<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::parse_all() Line 173 + 0xb bytes C++ example.exe!boost::re_detail::basic_regex_parser<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::parse(const char * p1=0x0048981c, const char * p2=0x00489830, unsigned int flags=0) Line 125 + 0x8 bytes C++ > example.exe!boost::re_detail::basic_regex_implementation<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::assign(const char * arg_first=0x0048981c, const char * arg_last=0x00489830, unsigned int f=0) Line 96 C++ example.exe!boost::basic_regex<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::do_assign(const char * p1=0x0048981c, const char * p2=0x00489830, unsigned int f=0) Line 524 C++ example.exe!boost::basic_regex<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::assign(const char * p1=0x0048981c, const char * p2=0x00489830, unsigned int f=0) Line 255 C++ example.exe!boost::basic_regex<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::assign(const char * p=0x0048981c, unsigned int f=0) Line 240 C++ example.exe!boost::basic_regex<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >::basic_regex<char,boost::regex_traits<char,boost::w32_regex_traits<char> > >(const char * p=0x0048981c, unsigned int f=0) Line 209 C++ example.exe!main() Line 8 + 0xf bytes C++ example.exe!__tmainCRTStartup() Line 586 + 0x19 bytes C example.exe!mainCRTStartup() Line 403 C kernel32.dll!7c816d4f() kernel32.dll!7c8399f3() #include <boost/regex.hpp> #include <iostream> #include <string> int main() { std::string line; boost::regex pat("^Subject: (Re: )?(.*"); boost::smatch matches; while (std::cin) { std::getline(std::cin, line); if (boost::regex_match(line, matches, pat)) std::cout << matches[2]; } } -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[Boost-bugs] [ boost-Feature Requests-1425519 ] add database library?
by SourceForge.net 06 Feb '06

06 Feb '06

Feature Requests item #1425519, was opened at 2006-02-06 11:18 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=357586&aid=1425519&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: functional Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Mark Rodgers (mark_rodgers) Summary: add database library? Initial Comment: adding a C++ boost library for database interaction would be useful, considering the quality and usability of boost and the lack of a good, consistent and reasonably licensed c++ database client library. Victor Rachels sekmu(a)tisiphone.dhs.org ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=357586&aid=1425519&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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[Review] Fixed strings library
by Hartmut Kaiser 06 Feb '06

06 Feb '06

Hi all, the formal review period of the Fixed strings library written by Reece Dunn ends today. Since there was complete consent with regard to this library among all submitted reviews, it is straight forward for me to make the final decision. The library is rejected and will not be included into Boost at this point in time. The main points listed during review were: - Do we need a fixed_string library at all, is it worth the overhead? - Insufficient/confusing documentation . insufficient description of general design, design rationales and motivations . it says more about implementation details rather then the public interface . missing or insufficient documentation of parts of the library - The overall architecture of the implementation is too complicated and needs to be reworked - Missing interface for construction/interaction with std::string's - Unclear benefit to have the strings truncated to avoid overflows - Missing performance comparison with std::string and other alternatives - Compilation problems with the library as submitted for review Reece already expressed his interest to resubmit the library for review again, after he has been able to address the mention issues. I'ld like to thank Reece for submitting this library and all reviewers for their time they invested in preparing the reviews. Regards Hartmut Review Manager

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