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[tr1] cstdint
by Kevin Sopp 17 Mar '06

17 Mar '06

Hi, since boost already has a cstdint.hpp header it would be nice if we could have it in boost's tr1 adoption too. Kevin Sopp _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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[serialization] text archives, strings and embedded nulls
by Joaquín Mª López Muñoz 17 Mar '06

17 Mar '06

Hello, Currently, output text archives implement string saving like this: template<class Archive> BOOST_ARCHIVE_DECL(void) text_oarchive_impl<Archive>::save(const std::string &s) { const std::size_t size = s.size(); *this->This() << size; this->This()->newtoken(); os << s; } which looks fine, except that some stdlib implementations don't do the "os<<s" right when s contains embedded nulls --basically, output stops at the first embedded null. Such a defective stdlib implementation is for instance, that of MSVC 6.5, and I have had conversations with Linux users leading me to suspect some libstdc++ implementations as well. Besides, the std requirements on operator<<(ostream,string) mandate that this function does a lot more things than simply dump the characters of the string, as text_iarchive_impl<Archive>::load(std::string &) assumes implicitly (reading is done through istream::read.) The attached example shows the problem. It crashes in MSVC 6.5, my hunch is that it'll fail in some other environments as well, though not in every one. Using intermediate buffers of type vector<char> fixes the problem. My suggestion is that text_oarchive_impl<Archive>::save(const std::string &s) be changed so as to dump the string as follows: template<class Archive> BOOST_ARCHIVE_DECL(void) text_oarchive_impl<Archive>::save(const std::string &s) { const std::size_t size = s.size(); *this->This() << size; this->This()->newtoken(); os.write(s.data(),s.size()); } so as to avoid problems with embedded nulls. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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[serialization] ambiguous concrete polymorphic archives
by Kim Barrett 16 Mar '06

16 Mar '06

The archive concepts include an is_saving and is_loading typedef. For concrete polymorphic archive types, such as polymorphic_binary_iarchive, attempting to access these values results in a compilation error due to ambiguity - there are two accessible definitions, from different base classes, specifically detail::interface_iarchive<binary_iarchive> detail::interface_iarchive<polymorphic_iarchive>

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[test] gcc-warning patch
by Juergen Hunold 16 Mar '06

16 Mar '06

Hi ! I've been playing around with Boost.Test and I'm very impressed. We use gcc's -pedantic option in our build environment and this found an extra semicolon at uni_test_suite.hpp at line 51. Full patch against current anon cvs attached. This is a minor glitch, but some people are fond of -pedantic. (that's why my colleague activated it :-)) Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * hunold(a)ive-mbh.de ! www.ive-mbh.de

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[in_place_factory] small typo
by David Grüner 16 Mar '06

16 Mar '06

http://www.boost.org/libs/utility/in_place_factories.html shceme -> scheme

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[optional] from_optional
by Vaclav Vesely 16 Mar '06

16 Mar '06

Hi, There is common need of getting value from optional with possibility to define default value in case of the optional is uninitialized. I suggest two alternatives: optional<int> o; int i = o.get(123); // meber function get with additional parameter int j = from_optional(o, 123); // free function Both alternatives can be implemented simultaneously. What do you think about it? Regards, Vaclav

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[ANN] xpressive 1.0 in CVS and File Vault
by Eric Niebler 16 Mar '06

16 Mar '06

I'm pleased to announce the availability of xpressive 1.0. This is the code that is currently in Boost CVS and will be part of Boost v1.34. It is also available as a separate download in the File Vault, and it works with Boost v1.32 and higher. xpressive is a regular expression template library that allows regexes to be strings or expression templates, and to nest and call each other recursively. Its interface is similar to TR1.Regex. Download: http://tinyurl.com/gjzap Documentation: http://tinyurl.com/882t8 -- Eric Niebler Boost Consulting www.boost-consulting.com

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HP-UX aCC or boost problem?
by Ralf W. Grosse-Kunstleve 16 Mar '06

16 Mar '06

While trying to port Boost.Python to HP-UX using the native "aCC" compiler I ran into this issue: void foo() { enum udt_builtin_mixture_enum { builtin_to_builtin ,builtin_to_udt ,udt_to_builtin ,udt_to_udt } ; udt_builtin_mixture_enum value1 = builtin_to_builtin; // this works udt_builtin_mixture_enum value2 = 0; // this doesn't } % aCC -AA -c enum_init.cpp "enum_init.cpp", line 11: error #2144: a value of type "int" cannot be used to initialize an entity of type "udt_builtin_mixture_enum" udt_builtin_mixture_enum value2 = 0; ^ 1 error detected in the compilation of "enum_init.cpp". Is the compiler correct in rejecting the initialization with 0? Thanks! Cheers, Ralf P.S.: aCC: HP aC++/ANSI C B3910B A.06.01 [Jan 05 2005] __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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[test] compile error on floating point comparison
by Vladimir Prus 16 Mar '06

16 Mar '06

The last test results on msvc (RudbekAssociates, as well as huber-V2), have a failure in math library that seems to be caused by Boost.Test. See: http://tinyurl.com/hon2m Seems like "max" and "min" are defined as macros. Per max/min guidelines (http://boost.org/more/lib_guide.htm) I've fixed this with attached patch, and comitted it as obvious. Hope this will fix the issue. - Volodya

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[Boost-bugs] [ boost-Bugs-1451470 ] 64 bit compile warning/error for boost::format
by SourceForge.net 16 Mar '06

16 Mar '06

Bugs item #1451470, was opened at 2006-03-16 09:25 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=1451470&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: 64 bit compile warning/error for boost::format Initial Comment: We are using MS Visual Studio 2005. Compiling for 64 bit Windos. We are compiling with warning level 4 and warnings == error. We're using boost 1.33.1 and STLPort 5.0.0 boost::format generates a possible loss of data conversion warning when compiling alt_sstream_impl.hpp -Lee lee.eggebroten(a)atlassolutions.com ++++++++++++++++++++++++++++++++++++++++++++ 1>c:\External\boost_1_33_1\boost/format/alt_sstream_impl.hpp(110) : error C2220: warning treated as error - no 'object' file generated 1> c:\External\boost_1_33_1\boost/format/alt_sstream_impl.hpp(96) : while compiling class template member function 'stlp_std::fpos<_StateT> boost::io::basic_altstringbuf<Ch,Tr,Alloc>::seekoff(__int64,stlp_std::ios_base::seekdir,stlp_std::ios_base::openmode)' 1> with 1> [ 1> _StateT=mbstate_t, 1> Ch=char, 1> Tr=stlp_std::char_traits<char>, 1> Alloc=stlp_std::allocator<char> 1> ] 1> c:\External\boost_1_33_1\boost/format/format_class.hpp(136) : see reference to class template instantiation 'boost::io::basic_altstringbuf<Ch,Tr,Alloc>' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=stlp_std::char_traits<char>, 1> Alloc=stlp_std::allocator<char> 1> ] 1> ..\PVMTrace.cpp(120) : see reference to class template instantiation 'boost::basic_format<Ch>' being compiled 1> with 1> [ 1> Ch=char 1> ] 1>c:\External\boost_1_33_1\boost/format/alt_sstream_impl.hpp(110) : warning C4244: 'argument' : conversion from '__int64' to 'int', possible loss of data 1>c:\External\boost_1_33_1\boost/format/alt_sstream_impl.hpp(128) : warning C4244: 'argument' : conversion from '__int64' to 'int', possible loss of data 1>c:\External\boost_1_33_1\boost/format/feed_args.hpp(53) : warning C4244: 'argument' : conversion from 'stlp_std::streamsize' to 'stlp_std::basic_string<_CharT,_Traits,_Alloc>::size_type', possible loss of data 1> with 1> [ 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char> 1> ] 1> c:\External\boost_1_33_1\boost/format/feed_args.hpp(161) : see reference to function template instantiation 'void boost::io::detail::mk_str<char,stlp_std::char_traits<char>,stlp_std::allocator<_Tp>>(stlp_std::basic_string<_CharT,_Traits,_Alloc> &,const Ch *,stlp_std::basic_string<_CharT,_Traits,_Alloc>::size_type,stlp_std::streamsize,const Ch,stlp_std::ios_base::fmtflags,const Ch,bool)' being compiled 1> with 1> [ 1> _Tp=char, 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char>, 1> Ch=char 1> ] 1> c:\External\boost_1_33_1\boost/format/feed_args.hpp(242) : see reference to function template instantiation 'void boost::io::detail::put<Ch,Tr,Alloc,T>(T,const boost::io::detail::format_item<Ch,Tr,Alloc> &,stlp_std::basic_string<_CharT,_Traits,_Alloc> &,boost::io::basic_altstringbuf<Ch,Tr,Alloc> &,boost::io::detail::locale_t *)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=stlp_std::char_traits<char>, 1> Alloc=stlp_std::allocator<char>, 1> T=const stlp_std::string &, 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char> 1> ] 1> c:\External\boost_1_33_1\boost/format/feed_args.hpp(251) : see reference to function template instantiation 'void boost::io::detail::distribute<Ch,Tr,Alloc,T>(boost::basic_format<Ch> &,T)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=stlp_std::char_traits<char>, 1> Alloc=stlp_std::allocator<char>, 1> T=const stlp_std::string & 1> ] 1> c:\External\boost_1_33_1\boost/format/format_class.hpp(64) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::io::detail::feed<char,Tr,Alloc,const T&>(boost::basic_format<Ch> &,const stlp_std::basic_string<_CharT,_Traits,_Alloc>)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=stlp_std::char_traits<char>, 1> Alloc=stlp_std::allocator<char>, 1> T=stlp_std::string, 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char> 1> ] 1> ..\PVMTrace.cpp(121) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::basic_format<Ch>::operator %<stlp_std::string>(const T &)' being compiled 1> with 1> [ 1> Ch=char, 1> T=stlp_std::string 1> ] 1>c:\External\boost_1_33_1\boost/format/feed_args.hpp(62) : warning C4244: 'argument' : conversion from 'stlp_std::streamsize' to 'stlp_std::basic_string<_CharT,_Traits,_Alloc>::size_type', possible loss of data 1> with 1> [ 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char> 1> ] 1>c:\External\boost_1_33_1\boost/format/feed_args.hpp(66) : warning C4244: 'argument' : conversion from 'stlp_std::streamsize' to 'stlp_std::basic_string<_CharT,_Traits,_Alloc>::size_type', possible loss of data 1> with 1> [ 1> _CharT=char, 1> _Traits=stlp_std::char_traits<char>, 1> _Alloc=stlp_std::allocator<char> 1> ] 1>Build Time 0:02 1>Build log was saved at "file://c:\Ad Serving\main\pvm\pvm_core\Release_Win32\BuildLog.htm" 1>pvm_core - 1 error(s), 5 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1451470&group_… ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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